tzj 

Ci) 

t':I 
48O 

47O 

46O 

COLUMBIA 

45O 

44O 

43O 

42O 

EUREKA 

41O 

40o 

Pacific Ocean 

39O 

38O National Marine Fisheries Service 

1997 West Coast MONTEREY 

Upper Continental Slope 37O 

Bottom Trawl Survey 

Successfully Trawled Stations 

36O 

35O 

129O 127O 125O 123O 121O 119O 

Figure 1. --Map showing the location of 182 successful bottom 

trawl tows sampled during the 1997 West Coast 

upper continental slope groundfish survey. 
/:/.. 

Poly-N or Eastern Trawl 

Framing Lines 89' '120' 7" 

Footrope Length 81' Headrope Length 89' 1" 

Breast Lines: 

1. 19' 6" 

19' 6" 

30' 

4. 8' 8"


780 30, 

19' 

4. rubber disks D8ne1o Roller gel r 

Figure 2. --The standardized poly-Nor Eastern trawl used to sample 

groundfish during the 1997 West Coast upper 

continental slope bottom trawl survey. 
:..

L.----.J 

West Coast Upper

Continental Slope

Bottom Trawl Survey Ground Gear 

Outboard section 

3/4" 6 X 19 fiber core wire rope hole delta plate solid 4' rubber :~:


3/4" hammerlock 

rber disk


19' 

Middle section 

3/8" chain droppers with 2 chain links,

1 toggle , and 1 ring - secured to fishing 1/2" long link alloy cham solid 8" rubber disks line using 5/16" shackle 

112" hammerlock \ 112" hammerlock 

\i.""I"'IAHIMIIHI.~._ .i.. ( 

1~~ 

Inboard section 

3/8" chain droppers with 2 chain links, 1/2" long link alloy chain solid 8" rubber disks 1 toggle, and 1 ring - secured to fishing 

line using 5/16" shackle ~I ~~ 18" ..J "'f 

20' 

Figure 3. --The groundgear used during the 1997 West Coast 

upper continental slope bottom trawl survey. 
.

J: 
 -++ i+U. + T *- + 

+,t ~t. 

Net Width = 0.0005*Depth + 16.502


2 = 0.0256


200 400 600 800 1000 1200 1400


DEPTH (m) 

x x€

x X€

XX x~x x€ J: X: XX~~~X€ x~ X€

~x~ 

X X€

Net Width = 0.0003*Wire Out + 16.435 

2 = 0.0277 

500 1000 1500 2000 2500


WIRE OUT (m)


Figure 4. --Mean net widths for each tow during the 1997 West 

Coast upper continental slope bottom trawl survey 

plotted against bottom depth and wire out. 
a.. 

a.. 

33. 

Mean = 5. 4OC


Range = 3. 1 oC to 10. 3OC


n = 1 90


200 400 600 800 1000 1200 

DEPTH (m) 

Mean = 14. 7OC


Range = 11. 7OC to 18. 9OC


n = 1 90 

35. 37. 39. 41. 43. 45. 47. 

LA TITUD~ (degrees) 

1400 

49. 

Figure 5. --Bottom and sea surface temperatures observed during 

the 1997 West Coast upper continental slope bottom 

trawl survey in relation to tow depth and latitude. 
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SLOPE SURVEY "14m r \ 548fn 18~m West Coast 1997


CPUE (kg/ha) "1\ l (Jp/ -.::t 

-.::t 

Arrowtooth flounder 12fm no catch C"'I 

" /I I~, 0 0-

0 0. 

5 (mean) Pacific vu ~.. 

5 (+1 sd) 

0 2. 

Ocean rtf/ 6 (+2 sd) 

0 4.	 17. 1 (~2 sd) -.::t 

-.::t C"'I 

124 o 12So 126O 125O 

Figure 6. --Arrowtooth flounder distribution and relative abundance (kg/ha) from the 1997 West Coast upper continental slope bottom trawl survey. 
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;) c? Darkblotched rockfish Ii") 12/D

no catch Cf') 

0 0- 3 (mean) l..~ " 

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3 (+2 sd)
 0 2. tr: 

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Cf') 

Cf') 

124 o 123 o 122O 121O 124 o 126O 125O 124 o 

Figure 7. --Darkblotched rockfish distribution and relative abundance (kg/ha) from the 1997 West 

Coast upper continental slope bottom trawl survey. 
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J~~ 

Dover sole \I') 12ID m " r 

no catch ('f1 1 I 

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: Z


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124 o 123O 122O 121O 125O 124 o 126O 

Figure 8. --Dover sole distribution and relative abundance (kg/ha) from the 1997 West Coast upper 

continental slope bottom trawl survey. 
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no catch 

0 0- 6 (mean) ;J 

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Figure 9. --Giant grenadier distribution and relative abundance (kg/ha) from the 1997 West Coast
 upper continental slope bottom trawl survey.€
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Longspine thornyhead If') (C'j no catch Cf") 128p m) \ 

0 0-18.7 (mean) i /~.aJ" l-... ~ 

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0 39. 59. 7 (+2 sd) 'I 

II'. 

122.4 (~2 sd) 

. 0 I.00 " 0 59. 

Cf") 

124 o 123 o 122O 121O 125O 124 o 126O 125O 124 o 

Figure 10. Longspine thornyhead distribution and relative abundance (kg/ha) from the 1997 

West Coast upper continental slope bottom trawl survey. 
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CPUE (kg/ha) (b) 

~'1? 

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no catch (f1 128Dm t \ 

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, 1 0 18.1 -29.8 (+2 sd) 

0 29. 63.2 (~2 sd) -c?- (f1 

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124 o 123O 122O 121O 125O 124 o 126O 125O 124 o 

Figure 11. --Pacific grenadier distribution and relative abundance (kg/ha) from the 1997 West Coast upper continental slope bottom trawl survey. 
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West Coast 1997
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CPUE (kg/ha) 'b \ Q)/ 

J?C? 

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no catch f \ 12f 

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lto 

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124 o 123O 122O 121O 125O 124 o 126O 125O 124 o 

Figure 12. --Pacific hake distribution and relative abundance (kg/ha) from the 1997 West Coast upper continental slope bottom trawl survey. 
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SLOPE SURVEY 1?)JOsm;=~~... ~M8~~, ff4~~ (ljI""'" 183 m .... z West Coast 1997 ... 1'~3 ' ' Z , 1i'r \I') "d" CPU E (kg/ha) + ;r' , 0 ;:r--'1 "d" t,- .... z -......J ?'i? : Pacific ocean perch \I') 12$ m \ \ no catch (t1 ~ I \' 

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Figure 13. --Pacific ocean perch distribution and relative abundance (kg/ha) from the 1997 West Coast upper continental slope bottom trawl survey. 

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~:jm ' z West Coast 1997 

"II'. CPUE (kg/ha) ifii \~U ! \r) 

Rex sole 

it 

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no catch 'l. 'to' " 121D m \ \ 

0 0- 6 (mean) Pacific ~( \(11) ..I 0 7. 35.6 (+1 sd) 

0 34. 61.5 (+2 set) 

Ocean , I , rl t)/ \ \1:/


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Cf'I 

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124 o 123 o 122O 121O 125O 124 o 126O 125O 124 o 

Figure 14. -Rex sole distribution and relative abundance (kg/ha) from the 1997 West Coast upper continental slope bottom trawl survey. 
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SLOPE SURVEY 1\4 West Coast 1997 ~i ; CPUE (kg/ha) 0/00 ~/ I).s: 

Sablefish 

(f') r \ 12fmg no catch 

0 0-13.3 (mean) Pacific o(t\ . k " 

a 13.3-27.4 (+1 set) Ocean ( 0 r!/

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Figure 15. --Sablefish distribution and relative abundance (kg /ha) from the 1997 West Coast upper continental slope bottom trawl survey. 
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CPU E (kg/ha) (0)( tt') !/'V 

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no catch 

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Fi gure 16. --Shortspine thornyhead distribution and relative abundance (kg/ha) from the 1997 West 

Coast upper continental slope bottom trawl survey. 
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-1- Ocean \7( \ 

Cf"\ 

I _
 00 

SLOPE SURVEY 14mr;J 183 m West Coast 1997 

It') CPUE (kg/ha) '\: 0 'J.O "d" lS: 

Spiny dogfish \f'j 12 I ('V 

no catch Cf"\ 

0 0-28.5 (mean) Pacific /J I 

0 28.5-140. 1 (+1 sd) Ocean \ J/ 

0 140. 251. 6 (+2 sd) Ii: 

l?~ 

0 251.6-889. 0 (::-2 sd) -c?- Cf"\ !f.' "d" 

Cf"\ 

124 o 123OW 122O 121O 125OW 124 o 126O 125O 124 o 

Figure 17. --Spiny dogfish distribution and relative abundance (kg /ha) from the 1997 West Coast upper continental slope bottom trawl survey. 
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Pacific 

Ocean ,1::0. 

1/ 

~..-i. + cP~ 

SLOPE SURVEY ff4 West Coast 1997 rj ~ 183 m 

CPUE (kg/ha) 

J~~ 

Splitnose rockfish 12aDm\\ ! 

no catch 

0 0-3.0 (mean) Pacific \1.( 0 3. 21.3 (+1 sd) Ocean \ t 

0 21. 39.5 (+2 sd) 

0 39. 220.2 (;:'2 sd) 

(f') 

(f') 

124 o 123O 122O 121O 125O 124 o 126O 125O 124 o 

Figure 18. --Spli tnose rockfish distribution and relative abundance (kg/ha) from the 1997 West Coast upper continental slope bottom trawl survey. 
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k,€ SLOPE SU RVEY ~(4 5~m €

West Coast 1997 Aj 9-- 183m€ CPUE (kg/ha) .I, "'" 0 

..I C? €

Ir') 1280 m True Tanner crab ('f') 

no catch Pacific /) I 0 0- 6 (mean) 

0 4. 13.0 (+1 sd) Ocean I ,J ' 

) 'I ; 0 13. 21.5 (+2 sd) ) Ii;€

0 21. 77.3 (~2 sd) 

' 0 -c?- ,: Z 0'\ ('f') 

('f')€ 124O 123O 122O 121O 126O 125O 124O€

Figure 19. - "':True Tanner crab distribution and relative abundance (kgfha) from the 1997 

West Coast upper continental slope bottom trawl survey. 
..... ...... ...... ..... 

\\ . :\.:

. \ 

\.. :. . 

E 0)

, 

, 

32t	 Means Mean 

M = 28. T = 32. 

..... E F = 35. LO ~ 

E ~ E 0) no data no data :J M :J q 

to M to I 

en en ..... 10 

1\ 

a: 30 

Means Mean 

Q.. M = 34. T = 38. 

N E F = 40. co ~ 

:J ~ E N to :J"':: no data no data to- ~ co 

en M ~ 10 f\ 

.f' 

ffi 30 Q.. Mean Means Mean 

T =41.4 M = 31. T = 33. 0'1 M E to 0 . F = 35. E ~ 

:J ...... insufficient data ~ N to 0 en..... 

- M
 en LO


, r'.j 


60 80 0 a: 30 

Q.. LENGTH (CM) 

~ E


E ~ :J 0)
to M no data no data ARROWTOOTH FLOUNDER
 ~ M
 en 

female male 

60 80 0 


LENGTH (CM)


Figure 20. --Estimated popu1ation size composition and mean 1enqths (em) of arrowtooth f1ounder by depth 

stratum and by sex (T = ma1es, fema1es, and unsexed combined) for a11 Internationa1 North Pacific 

Fisheries Commission areas samp1ed from the 1997 West Coast upper continenta1 s1ope bottom traw1


survey. 
.... ..... ..... .... 

.....

::I V 

-...J 

.... ,

..... E II) ~ 20 

E :g no data no data E 0) no data no data
 ::I M ::I q
 .... I
 to M to I 

II) U) U) ..... 10 

CC 30
a.. 

"" E CD ~ 


E 0) E "" .... II) no data no data ::I ~ no data no data to I .... I .... r-. ~ co


U) en ~ 

ffi 30 a.. 

M E to 0 E ~ .... co 

::I r-. no data no data no data no data .... I to 0 U) 

II) U) II) ~ 10 

CC 30 60 80 0 a.. LENGTH (CM) 

v E


E ~ ::I 0)

.... I no data no data to M ~ M U) r-. ARROWTOOTH FLOUNDER 

male ------ female 

60 80 0 

LENGTH (CM) 

Figure 21. --Estimated population size composition and mean lengths (em) of arrowtooth flounder by "depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commission Conception area from the 1997 West Coast upper continental slope bottom trawl


survey. 
..... ... ...... ... ...... ..... .

E 0)

... , 

..... E L!) ~ 

E en no data no data E ~ insufficient data insufficient data :J ~ :J (V) 

... I ta (V) ta I .t:: co .t:: L!) 

en en ..... 10 

a: 30
a.. 

C'II E co ~ 


C'II :J ~ ... L!) :J"':: ta I insufficient data insufficient data ... I no data no data 

~ co 

... co 

en ~ 10


ffi 30 a.. 

(V) E ta 0 E ~ ... co 

:J ...... C'II insufficient data insufficient data ... I ~ 0 no data no data en..... 

L!) 

en L!) ~ 10 

a: 30 60 80 0 

a.. LENGTH (CM) 

~ E


E :! :J 0) 

... I no data no data ta (V) .t:: (V) en 

60 80 0 

LENGTH (CM) 

Figure 22. ~-Estimated population size composition and mean lengths (em) of arrowtooth flounder by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commdssion Monterey area from the 1997 West Coast upper continental slope bottom trawl


survey. 
.::. .::. 

::::J V

... 0)

; , ,

1O0t 11 67t Means Mean :i ji M = 28. T = 34. ~ E F - 360 It) E 30 

E ~ E 0) no data no data ::::J (Y) a ~ 20 ... I co (Y) CtJ I 

.::. co .::. It) en ~ en ~ 

I- 10


a: 40 

Means Mean 

a.. M = 40. T = 39. 

N E F = 39. co 0 


E 0) E N ... It) a ~ 20 no data no data co I 

... co ~ co en (Y) en 0 

I- 10 ~ 10


fL ~ \ 

ffi 40 a.. Means Mean 

M = 38. T = 39. 

E 30 (Y) E co 0 F = 39. E ~ ro co


::::J 


... I no data no data en ~
 co 0 C'!, 


.::. It) (Y)
 en It) c:t: co


I- 10 ~ 10
a:i 0 v\t\.. 

a: 40 60 80 0 a.. LENGTH (CM) 

v E


E ~ ::::J 0) 

... I no data no data co tV) 

(Y) ARROWTOOTH FLOUNDER en " 

male ----- female 

60 80 0 

LENGTH (CM) 

Figure 23. --Estimated population size composition and mean lengths (em) of arrowtooth flounder by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Comndssion Eureka area from the 1997 West Coast upper continental slope bottom trawl


survey. 
... ..... 

.... 

::J q-

(j) 

, 

, , 

40t Means Mean 

M = 31. T = 38. 

..... E F = 39. It) ~ 20 

E 0) no data no data 

::J co ::J ... ('t) cu I cu I('t) It) ... co 

(f) ..... (f) ..... 10 

r~ 

a: 30


Means Mean 

a.. M = 33. T = 38. 

N E F = 41. co ~ 


E N ... It) ::J co I ... I no data no data ~ co


... co


(f) ('t)


ffi 30 a.. Means Mean t-a 

M = 33. T = 38.2 

('t) E cu 0 F = 40. E ~ ... co 

::J ~ N 

... I insufficient data insufficient data (f)..... ~ 0 ... It) (f) It) ~ 10 

\ oJ ' .f\ 60 80 0 a: 30


a.. LENGTH (CM) 

q- E


E ~::J 

... I no data no data co ('t) 

(f) ('t) ARROWTOOTH FLOUNDER 

----- female male 

60 80 0 


LENGTH (CM)


Figure 24. --Estimated population size composition and mean lengths (em) of arrowtooth flounder by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commission Columbia area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ..... . 

,.... 

35t	 Means Mean 

.M = 28. T = 30. 

..... E F = 32. It) ~ 20 

E :g E m no data no data ::::I (W) ::::I 

co (W) co I 

en ~ ~ 10 

,/ 1 


a: 30


a.. 

N E
 co ~ 


E ~ E ~ ::::I It) insufficient data insufficient data ::::I..... no data no data co ,.... 

~ co 

en (W) en ~ 

a: 30


a.. 34t Means Mean 

M = 29. T = 30. 

(W) E co 0 F = 31. E ~ 

::::I ,.... no data no data ~ N 

co 0 en 

It) 

en It) ~ 10 

c: 30 60 80 0 

a.. LENGTH (CM) 

o:t E


E !
::::I m no data no data co (W) ARROWTOOTH FLOUNDER 

(W) 

en 

male female 

60 80 0 

LENGTH (CM) 

Figure 25. --Estimated population size composition and mean lengths (em) of arrowtooth flounder by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Coumission U. s. -Vancouver area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... ..... . . 

\ 

,.... , . ,.... ,.... , , 

Means Mean Means Mean M = 27. T = 28. M = 40. T = 43. 

..... E F = 30. It) E F = 44. 

E :g
 ::::I (W) ~ 10


co (W) co I 

It) 

en en..... 

.i 

a: 20


Means Mean 25t ~ Means Mean a.. M = 29. T = 30. M = 42. T = 44. 

N E F = 32. co 0 F = 45. 

E m ::::I o:t It) co I ~ 10 

~ co 

- m en (W) en 

ffi 20 a..	 Means Mean Means Mean 

M = 35. T = 36. M = 31.1 T = 33. (W) E F = 38. co 0 F = 35. (IV E ~ 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

a.. M = 36. T = 38. , LENGTH (CM) 

o:t E F = 41. 

::::I m co (W) 

(W) DOVER SOLE 

en 

male female 

60 80 0 

LENGTH (CM) 

Figure 26. --Estimated population size composition and mean lengths (em) of Dover sole by depth stratum 

and by sex (T = males, females, and unsexed combined) for all International North Pacific Fisheries Commission areas sampled from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... . 

! ,.... :,.. ,.... 

; ::, 

Means Mean Means Mean 

M = 18. T = 19. M = 41.7 T = 42. 

..... E F = 20. It) ~ F = 43. 

E :g ::::I (W) 

co (W) co I~ 10 

It) 

en 1. \ en..... 

V ~ \


a: 20


Means Mean Means Mean a.. M = 30. T = 30. M = 41. T =44. 

N E F = 30. co 0 F = 45. 

E m , ::t ::::I o:t It) co I ~ 10 U;, ~ co 

- m en (W) en 

ffi 20 

a.. Means Mean Means Mean 

M ::: 37. T =37. M = 35. T = 35. (W) E 

E ~ F = 38. co 0 F = 35. 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

a.. M = 37.4 T =38. LENGTH (CM) 

o:t E F = 41.


::::I m co (W) 

(W) DOVER SOLE 

en 

male ----- female 

60 80 0 

LENGTH (CM). 

Figure 27. --Estimated population size composition and mean lengths (em) of Dover sole by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Coumission Conception area from the 1997 West Coast upper continental slope bottom


trawl survey.

..... . 

..... ..... ,.... , 

, 

Means Mean Means Mean M = 27. T = 28. M = 40. T = 43. 

..... E F = 28. It) ~ F = 43. f'-: E :g 1 \ ::::I (W) 

co (W) co I~ 10 

It) 

en en..... (J \ 

a: 20


a..	

Means Mean 31 t ! Means Mean 

M = 28.4 T = 28. M = 42. T =44. 

N E F = 29. co 0 F = 45. 

E m ::::I o:t co ,.... ~ 10


co co


~ m
 en (W) en 

ffi 20 a..	 Means Mean Means Mean 

M = 35.4 T = 36. M = 31. T = 33. (W) E F = 37. co 0 F = 36. E ~ 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

a.. M = 35. T =37. LENGTH (CM) 

o:t E F = 40.


E :! ::::I m 

co (W)


(W) 

en DOVER SOLE 

male ------- female 

60 80 0 

LENGTH (CM) 

Figure 28. --Estimated population size composition and mean lengths (em) of Dover sole by depth stratum 

and by sex (T = males, females, and unsexed combined) for the. International North Pacific 

Fisheries Coumission Monterey area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... ..... ..... \ . \\ . 

,.... , 

,.... ./) 

,.... 

Means Mean Means Mean M = 26. T = 28.2 M = 38. T = 43. 

..... E F = 29. It) E F = 45.2 

E :g ::::I (W) 

co (W) co I~ 10 Iii It) 

en en..... 

a: 20 

Means Mean Mean 

a.. M = 31. T =33. T =43. 

N E F = 36. co 0 

E m E N ::::I o:t It) ~ 10 insufficient data co I 

~ co


- m en (W) en 

ffi 20 a.. Means Mean Means Mean 

M = 36. T = 38. M = 31. T = 34. 

(W) E F = 41.4 co 0 F = 37. E ~ 

::::I ,.... ~ ~ 10
 co 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

a.. M = 37. T = 42. LENGTH (CM) 

o:t E F = 43. 

E ! ::::I m 

(W) (W) DOVER SOLE 

en 

~l, male female 

60 80 0 

LENGTH (CM) 

, Figure 29. --Estimated population size composition and mean lengths (em) of Dover sole by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commdssion Eureka area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... . 

. . ..... ,.... ,:::; ,.... ; 

\ 

Means Mean Means Mean 

M = 28. T = 29. M = 41. T = 43. 

..... E F = 33. It) E F = 44. 

E :g
 ::::I (W) ~ 10 ! ;0


co (W) co I 

It) 

en en..... 

;.f ~ .i\:" 

a: 20 

Means Mean Mean 2et a.. M = 29. T = 31. T = 44. 

N E F = 34. (0 0 

E m E N ::::I co ,.... ~ 10 insufficient data 

~ co 

- m en (W) en 

ffi 20 a.. Means Mean Means Mean 

= 33. T = 35. M = 29. T = 31.4 0'1 (W) E F = 39. co 0 F = 34. E ~ 

::::I ,.... ~ ~ 10
 co 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

a.. M = 37. T = 40. LENGTH (CM) 

o:t E F = 42. 

E ! 

::::I m co (W) 

(W) DOVER SOLE 

en 

male ------ female 

60 80 0 

LENGTH (CM) 

Figure 30. --Estimated population size compositi~n and mean lengths (em) of Dover sole by depth stratum 

and by sex (T = males , females, and unsexed combined) for the International North Pacific Fisheries Commission Columbia area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... ..... . \:

::: \

\ 

. 

,.... ,.... ,.... 

Means Mean 

M = 28.4 T = 29.4 

..... E F = 30. It) E 

E :g .I\ ::::I (W) ~ 10 insufficient data insufficient data 

co (W) co I 

It) 

en en 

a: 20
 26t Mean 

a.. T = 35. 

N E co 0 

E m ::::I o:t It) insufficient data ~ 10 no data no data co I 

co co


~ m
 en (W) en 

ffi 20 a.. Mean Means Mean 

T =35. M = 29. T = 30. (W) E 

E ~ co 0 F = 31. ..J ::::I ,.... insufficient data ~ ~ 10 co 0 en..... I / It) (W) en It) 

60 80 0 

a.. LENGTH (CM) 

o:t E


E !
::::I m insufficient data insufficient data
co (W)


(W) 

en DOVER SOLE 

male ------ female 

60 80 0 

LENGTH (CM) 

Figure 31. --Estimated population size composition and mean lengths (em) of Dover sole by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commission u. s. -Vancouver area from the 1997 West Coast upper continental slope bottom 

trawl survey.

..... ... ..... ,.... ,.... ,.... 

Means Mean M = 17. T = 18. F = 18.


..... E It) E 30 

E :g
 ::::I (W) no data no data


(W) co I...: 20 It) 

en co en m 10 

ffi 40 Means Mean 

a.. 

M = 18. T = 19. 

N E (0 0 30 F = 19. 

E m ::::I V no data no data E N It) co I ~ 20 

..... (0 - m en (W) en 

J- 10 ~ 10


ffi 40 a.. Means Mean Means Mean 

M = 17. T = 17. M = 17. T = 18. (W) E F = 18. co 0E 30 F = 18. E ~ 

::::I ,.... ... N 

~ 0 en ...: 2 0 

It) (W) en It) 

J- 10 ..... 10 

a: 40 30 40 0 Means Mean 

a.. M = 16. T = 17. LENGTH (CM) 

o:t E F = 17. 

::::I m co (W) 

en 

(W) GIANT GRENADIER 

male ------ female 

30 40 0 

LENGTH (CM) 

Figure 32. --Estimated population size composition and mean lengths (em) of giant grenadier by depth stratum 

and by sex (T = males , females, and unsexed combined) for all International North Pacific Fisheries Commission areas sampled from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... 

,.... ,.... ,.... . , 

Means Mean M = 18. T = 19. F = 19. 

..... E It) E 30 

E:g
 ::::I (W) no data no data


co (W) co I	 ~ 20 

It) 

en en..... 

I- 10


ffi 40 Means Mean 

a.. M = 17. T = 18. 

N E co 0 F = 18.


E m
::::I q- no data no data It) co I ~ 20 

- m en (W) en 

~ 10


ffi 40 50t 50t Means a.. Mean Means Mean 

M = 17. T = 18. M = 18. T = 18. (W) E F = 18. co 0E 30 F = 19. E ~ 

::::I ,.... ~ N ~ 0 en ~ 

It) (W) en It) 

..... 10 

CC 30 40 0 1 0 Means Mean 

a.. M = 18. T = 18. LENGTH (CM) 

o:t E F = 18. 

::::I m co (W) 

en 

(W) GIANT GRENADIER 

male female 

30 40 0 1 0 

LENGTH (CM) 

Figure 33. --Estimated population size composition and mean lengths (em) of giant grenadier by depth stratum 

and by sex (T = males, females, and un sexed combined) for the International North Pacific Fisheries Commission Conception area from the 1997 West Coast upper continental slope bottom 

trawl survey.

... ..... 

,.... , 

, . ., ,.... , . ,.... 

Means Mean M = 18. T = 18. F = 18. 

..... E It) E 30 

E :g E m
 ::::I (W) no data no data ,a ~ 20
co (W) co I It) 

en""' en m 10 

Jffi 40 Means Mean 

a.. M = 18.4 T = 19. 

N E co 0 F = 19.4 

E m ::::I It) no data no data E N co I ~ 20 

~ co


- m
 en (W) en 

J- 10 ~ 10
ffi 40 48t 

a.. Means Mean Means Mean 

M = 18. T = 18. M = 18. T = 18. 

(W) E F = 18. co 0E 30 F = 18. E ~ 

::::I ,.... ~ N co 0 en ~ 

It) (W) en It) 

..... 10 J- 10


. 0 

30 40 0 1 0 a: 40 Means Mean


a.. M = 16. T = 17. LENGTH (CM)


o:t E F = 17.


E !
::::I m co (W) 

(W) GIANT GRENADIER 

en 

male female 

30 40 0 1 0 

LENGTH (CM) 

Figure 34. --Estimated population size composition and mean lengths (em) of giant grenadier by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commdssion Monterey area from the 1997 West Coast upper continental slope bottom trawl


survey. 
.....

... ,.... ,. ,.... 

Means Mean M = 17. T = 18. 

F = 18. 

..... E It) E 30 

E :g E m ::::I (W) no data no data ~ 20 co (W) co I 

It) 

en m 10 1- 10


ffi 40 Means Mean 

a.. M = 18. T = 19. 

N E co 0 F = 19. 

E m ::::I o:t no data no data E N It) co I ~ 20 

- m en (W) en 

J- 10 ~ 10


ffi 40
a.. Means Mean Means Mean 

(W) E 

M = 16. T=17. 

E 30 

M = 17. T = 18. t-J 

F = 18. co 0 F = 18. E ~ 

::::I ,.... ~ N ~ 0 en ~ 

It) (W) en It) 

I- 10 ..... 10 

a: 40 30 40 0 1 0 Means Mean a.. M = 16. T = 17.4 LENGTH (CM) 

o:t E F = 17. 

E ! 

::::I m co (W)


(W) 

en GIANT GRENADIER 

male ------ female 

30 40 0 1 0 

LENGTH (CM) 

Figure 35. --Estimated population size composition and mean lengths (em) of giant grenadier by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commission Eureka. area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... 

.. .

(IV 

,.... ,.... 

, 

. Means Mean 

M = 17.4 T = 17. 

F = 17.


..... E It) E 30 

E :g€ ::::I (W) no data no data€ ...:: 20 co (W) co I 

It) 

en..... 

J- 10


ffi 40 Means Mean 

a.. M = 17. T = 19. 

N E co 0 F = 19. 

E m ::::I q- no data no data E N It) .a ~ 20 

r.:. ~ co 

CJ) (W) - m en 

J- 10 ~ 10


ffi 40 a..	 Means Mean Means Mean 

M = 16. T = 17. M = 17.4 T = 18. E 30 (W) E F = 17. co 0 F = 18. E ~ 

::::I ,.... ~ N co 0 en ..... ' 20 

It) (W) en It) 

J- 10 ..... 10€a: 40	 30 40 0 1 0 Means Mean 

a.. M = 16. T = 17. LENGTH (CM) 

o:t E F = 17. 

E ! 

.a m€ co I€(W) 

(W) 

en GIANT GRENADIER€

male ------ female 

30 40 0 

LENGTH (CM) 

Figure 36. --Estimated population size composition and mean lengths (em) of giant grenadier by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commission Columbia area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ,.... ,.... 

Means Mean 

M = 17. T = 17. 

F = 17. 

..... E It) E 30 

E :g E m ::::I (W) no data no data 

co I~ 20 ('i) It) en""' en m 10 

Jffi 40 Means Mean 

a.. M = 18. T = 18. 

C'.I E co 0 F = 18. 

E m ::::I 'It no data no data E ~ It) '7 20 r-:. co co 

~ m en (W) en 

J- 10 ~ 10


ffi 40 a.. Means Mean 

M = 17. T = 17. (W) E co 0E 30 F = 17. E ~ 

::::I ,.... insufficient data insufficient data ~ N ~ 0 en ~ 

It) ('I) en It) 

J- 10 ..... 10 

a: 40 30 40 0 1 0 a.. LENGTH (CM) 

o:t E 

::::I m insufficient data insufficient data co (W)


(W) 

en GIANT GRENADIER 

male ------ female 

30 40 0 1 0 

LENGTH (CM) 

Figure 37. --Estimated population size composition and mean lengths (em) of giant grenadier by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commission u. s. -Vancouver area from ~he 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... . 

,.... ,. 

Means Mean M = 21.5 T = 19. F = 21.6


..... E It) ,.... 20 

E:g E m ::::I (W) no data no data ::::I co (W)


en en ~ 

a: 30


Means Mean Means Mean 

a.. M = 18. T = 18. M = 21. T = 18. 

N E F = 19. co ~ F = 21.


E m ::::I q- E N It) ::::I co I 

~ co 

en (W) en ~ 

a: 30


a..	 Means Mean Means Mean 

M = 20. T = 18.2 M = 20. T = 18. (W) E F = 21. co 0 F = 21.
 E ~


::::I ,.... ... N


co 0 en.....


It) (W) en It) 

30 40 0 1 0 

Means Mean 

a.. M = 20. T = 17. LENGTH (CM) 

o:t E F = 20. 

::::I m co (W)


(W) 

en LONGSPINE THORNYHEAD 

male female 

30 40 0 1 0 

LENGTH (CM) 

Figure 38. --Estimated population size composition and mean lengths (em) of longspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for a11 International North Pacific 

Fisheries Commission areas sampled from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... ..... ... ..... 

,.... 

39. --Estimated population size composition and mean 1engths (em) of longspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for the Internationa1 North Pacific 

Mean 

T = 19. 

Mean 

T = 19. 

Mean 

T = 20. 

LONGSPINE THORNYHEAD


Fisheries Commission Conception area from the 1997 West Coast upper continental slope bottom


female male 

LENGTH (CM)


30 40 0 1 0 

T =21.


Means M = 22. 

F = 22.


Means M = 22. 

F = 22.


Means 

M = 21.7 

F = 21.


~ ~ 20


no data 

..... 10 

~ 20


::::I ~ co


en ~ 


co 0 


ca co


C'II 

en 

(W) c::( co 

co I 

It) 

::::I 

en 

Mean 

T = 18. 

T =21.


F = 18.


Mean 

F = 22.


Mean 

F = 22.


30 40 0 1 0 

LENGTH (CM)


Means 

M = 22. 

Means M = 18. 

Means M = 22. 

no data 

,.... 

..... E 

E :g ::::I (W) 

co (W)


en 

a: 30
a.. 

N E


E m


::::I VIt) co I 

en (W) 

ffi 30
a.. 

(W) E 

E ~ ::::I ,.... ~ 0 

It) 

en It) 

a.. 

o:t E


E !
::::I m co (W)


(W) 

en 

Figure 

trawl survey.

..... ..... ... .... ..... . ,.... ,.... 

\ (; 

Means Mean 

M = 21. T = 19. 

F = 21.0


It) ,.... 20 

E :g E m ::::I (W) no data no data ::::I co (W) co I 

It) 

en en 

Means Mean Means Mean 

a.. M = 20. T = 20.2 M = 21. T = 18. 

F = 21. co ~ F = 21.


::::I .q E N It) ::::I co I co I ... co 

en (w) en ~ 

a..	 Means Mean Means Mean 

M = 22. T = 20. M = 20. T = 18. 

(W) 

E ~ F = 22. co 0 F = 20.


::::I,.... ... N ~ 0 en..... 

It) 

en It) (W) 

30 40 0 

Means Mean 

a.. M = 19. T = 18. LENGTH. (CM) 

o:t F = 19. 

::::I m 

co (W)


(W) 

en LONGSPINE THORNYHEAD 

male ------ female 

30 40 0 1 0 

LENGTH (CM)

Figure 40. --Estimated population size composition and mean lengths (em) of longspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for the Internationa1 North Pacific 

Fisheries Commission Monterey area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... ..... ..... ..... 

: : .. 

\

\ 

, 

,.... . 

,) 

,.... , . 

Means Mean 

M = 21.2 T = 18. 

F = 21.4


..... E 

E :g ~ ~ 20 ::::I (W) no data no data ::::I co I (W) It) 

en en m 10 

a: 30


Means Mean Means Mean 

a.. M = 18. T = 20. M = 20. T = 18, 

C'II E F = 21. co ~ F = 20. 

E m ::::I o:t E N It) ::::I ..... co I co I ... co 

en (W) 20 en q -J 

ffi 30
a.. Means. Mean Means Mean 

M E 

M = 20. T = 18. M = 21. T = 17. 

E ~ F = 20. ~ ~ 20 F = 21. ..J ::::I ,.... C'II 

~ 0 en..... 

It) (W) en It) 

30 40 0 

Means Mean 

a.. M = 21.4 T = 16. LENGTH (CM) 

o:t E F = 21. 

E !
::::I m co (W)


(W) 

en LONGSPINE THORNYHEAD 

male female 

30 40 0 

LENGTH (CM) 

Figure 41. --Estimated population size composition and mean lengths (em) of longspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commission Eureka area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... ..... . ,.... 

42. --Estimated population size composition and mean lengths (em) of longspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commission Columbia area from the 1997 West Coast upper continental slope bottom trawl


Mean 

T = 19. 

Mean 

T = 18. 

Mean 

T = 17. 

LONGSPINE THORNYHEAD


----- female male 

LENGTH (CM)


30 40 0 1 0 

T = 16. 

Means F = 22.


Means 

M = 20. 

F = 21.


Means M = 21. F = 21.


(W) 

M = 21. 

~ ~ 20


no data 

co ~ 


en ~ 


co 0 


It) 

E N

::::I"':: - I~ co


~ N


en..... 

::::I 

co , 

en 

Mean 

T = 14. 

T = 16, 

F = 19.


Mean 

F = 21.


Mean 

F = 21.


30 40 0 1 0 

LENGTH (CM)


Means M = 18. 

Means 

M = 20. 

Means 

M = 20. 

no data 

36 t 


Figure 

survey. 

,.... 

..... E 

E :g ::::I (W) co (W)


en 

a: 30


a.. 

N E


E m
::::I o:t It) co I 

en (W) 

ffi 30
a.. 

(W) E 

E ~ ::::I ,.... co '


It) 

en It) 

a.. 

o:t E


E !


::::I m 

co (W)


(W) 

en 
..... ... ..... 

,.... 

\.0 

,.... 

Means Mean 

- M = 21. T = 18. 

F = 21.6


..... E It) ,.... 20 

E :g ::::I (W) no data no data ::::I co (W) co I 

It) 

en en ..... 10 

a: 30 

Means Mean 

a.. M = 20. T = 17. 

N E co ~ F = 19. 

E m E N ::::I It) insufficient data insufficient data ::::I co I 

~ co 

en (W) en ~ 

ffi 30
a..	 Means Mean Means Mean 

M = 16. T = 14. M = 19.2 T = 16. 

(W) E F = 18. co 0 F = 20. E ~ 

::::I ,.... ~ N ~ 0 en..... 

It) (W) en It) c:( co 

m' 0 30 40 0 1 0 

Means Mean 

a.. M = 20. T = 16. LENGTH (CM) 

o:t E F = 20. 

E ! ::::I m co (W) 

(W) LONGSPINE THORNYHEAD en 

male female 

30 40 0 1 0 

LENGTH (CM) 

Figure 43. --Estimated population size composition and mean lengths (em) of longspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for the Interna~ional North Pacific 

Fisheries Commission U. S-Vancouver area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... 

. ,.... ,.... 

Means Mean M = 15. T = 13. 

F 11. 

..... E It) E 30 

E :g
 ::::I (W) no data no data
 co I~ 20 (W) It) 

en co en..... 

J- 10


ffi 40 Means Mean 

a.. M = 15. T = 14. 

N E (0 0 30 F = 13.2 

E m ::::I o:t no data no data ::::I ' It) 

"';" 20 ~ co


- m en (W) en 

J- 10 ~ 10


ffi 40
a.. Means Mean Means Mean (IV M = 7. T = 7.4 M = 15_ T = 13. 

(W) E F = 8. co 0E 30 F = 11. E ~ 

::::I ,.... ~ N co 0 en ~ 

It) (W) en It) c::( co 

J- 10 ..... 10 

a: 40	 30 40 0 1 0 Means Mean 

a.. M = 9. T = 7. LENGTH (CM) 

o:t E F = 9. 

E ! ::::I m co (W)


(W) 

en PACIFIC GRENADIER 

male ----- female 30 40 0 

LENGTH (CM) 

Figure 44. --Estimated population size composition and mean lengths (em) of Pacific grenadier by depth 

stratum and by sex (T = males, females, and unsexed combined) for all International North Pacific 

Fisheries Commission areas sampled from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... 

\ 

\ : 

..... ,.... 

; :;: ,.... , 

Means Mean M = 18. T = 16. 

F = 15. 

..... E It) E 30 

E :g
 ::::I (W) no data no data
 ~ 20 

(W) co , It) 

en co en m 10 r- 10


ffi 40 Means Mean 

a.. M = 17. T = 16. 

N E (0 0 30 F = 14. E ~ 

::::I ..... no data no data E N It) 

~ 20


~ co


- m en (W) en 

J- 10 ~ 10


ffi 40 a.. Means Mean 

M = 17. T = 16.4 (IV E 30 (W) E co 0 F = 14. E ~ 

::::I ,.... no data no data ~ N ~ 0 en ...: 2 0 

It) (W) en It) c:t: co 

..... 10 

a: 40	 30 40 0 1 0 Means Mean 

a.. M = 14. T = 13. LENGTH (CM) 

o:t E F = 12.2 

E !


::::I m co (W)


(W) 

en 

i\ i\ PACIFIC GRENADIER 

\ i\ ! : i :: : male --- female 

30 40 0 1 0 

LENGTH (CM) 

Figure 45. --Estimated population size composition and mean lengths (em) of Pacific grenadier by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commission Conception area from the 1997 West Coast upper continental' slope bottom trawl survey. 
..... .... ..... ,.... ,.... 

Means Mean M = 17. T = 15. F = 13. 

..... E It) E 30 

E :g
 ::::I (W) no data no data co I~ 20
 co (W)
 It) 

en m 10 

J- 10
ffi 40 Means Mean 

a.. M = 17. T = 15. 

N E co 0 F = 13. 

E m E N ::::I q- no data no data It) 

r-:.. ~ 20 ~ co 

- m en (W) en 

J- 10 ~ 10


ffi 40 a.. Means Mean Means Mean 

M = 6. T = 6, M = 16. T = 14. 

(W) E F = 7. co 0E 30 F = 12. (IV E ~ 

::::I ,.... ~ N (IV co 0 en ~ 

It) (W) en It) 

..... 10 J- 10


a: 40 30 40 0 1 0 Means Mean 

a.. M= 7. T = 6. LENGTH (CM) 

o:t E F = 7. 

::::I m co (W)


(W) 

en PACIFIC GRENADIER 

male. ------ female 

30 40


LENGTH (CM) 

Figure 46. --Estimated population size composition and mean lengths (em) of Pacific grenadier by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commission Monterey area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... 

,.... /.. 

/ \ ,.... 

Means Mean M = 13. T = 11. F = 10.4 

..... E It) E 30 

E :g
 ::::I (W) no data no data a ~ 20
co (W) co I It) 

en..... 

J- 10


ffi 40 Means Mean a.. M = 15. T = 14. 

N E co 0 F = 12. 

E m ::::I o:t no data no data E N It) 

~ 20


~ co


- m en (W) en 

J- 10 ~ 10


ffi 40 a.. Means Mean Means Mean 

M = 8. T = 7.2 M = 14. T = 12. (IV 

(W) E F = 8. co 0E 30 F = 10. E ~ 

::::I ,.... ~ N co 0 en ~ 

It) (W) en It) 

..... 10 J- 10


a: 40	 30 40 0 1 0 Means Mean 

a.. M = 9. T = 9. LENGTH (CM) 

o:t E F = 9. 

E !
::::I m co (W)


(W) 

en PACIFIC GRENADIER 

male ----- female 

30 40 0 1 0 

LENGTH (CM) Figure 47. --Estimated population size composition and mean lengths (em) of Pacific grenadier by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Comndssion Eureka area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ..... ... ,.... 

(IV 

T = 11.7


stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commission Columbia area from the 1997 West Coast upper continental slope bottom trawl


survey. 

Mean 

T = 11.2


Mean 

T = 12. 

Mean 

PACIFIC GRENADIER


Figure 48. --Estimated population size composition and mean lengths (em) of Pacific grenadier by depth 

------ female male 

LENGTH (CM)


M = 13. 

Means 

M = 12. 

F = 11.


M = 12. 

Means 

F = 12.


F = 10.


It) E 30 

Means 

co I~ 20 

m 10 

~ 20


(0 0 30


~ 10


..... 10 

co 0E 30 

(W) 

en ~ 


,.... 

..... E 

E N 

It) 

en 

~ co


- m


en 

~ N 

T = 8.4 

Mean 

Mean 

T= 7. 

no data 

no data


LENGTH (CM)


40 0


M = 9.2 Means 

F = 9. 

Means M = 8. 

F = 9. 

no data 

no data 

ffi 40 a.. 

ffi 40 

a.. 

a: 40
a.. 

co (W)


(W) 

E:g ::::I (W) 

co (W)


(W) 

N E


E m
::::I o:t It) 

(W) E 

E ~
::::I,.... 

~ 0


,.... 

It) It) 

o:t E 

en 

en 

co I 

en 

::::I m 

en 
..... .....

(IV 

,.:. ,.... ,.... 

Means Mean 

M = 11. T = 10. 

F = 11.0 

..... E It) E 30 

E :g
 ::::I (W) no data no data a ~ 20


co (W) co I 

It) 

en m 10 J- 10


ffi 40 Means Mean a.. M = 12. T = 11. 

N E co 0 F = 11. 

E m ::::I o:t no data no data It)	 a ~ 20 

~ co 

- m en (W) en 

J- 10 ~ 10


ffi 40 

a.. Means Mean Means Mean 

M = 6. T = 7.4 M = 10. T = 10. E 30 (W) E F = 8. co 0 F = 10. E ~ 

::::I ,.... ~ N 

~ 0 en ~ 

It) (W) en It) 

J- 10 ..... 10 

a: 40 30 40 0 1 0 Means Mean a.. M = 7. T = 7. LENGTH (CM) 

q- E F = 8. 

::::I m co (W)


(W) 

en PACIFIC GRENADIER 

male ------ female 30 40 0 

LENGTH (CM) 

~igure 49. --Estimated population size composition and mean lengths (em) of Pacific grenadier by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commdssion U. -Vancouver area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... 

..... ..... ..... ,.... ,.... ,.... ;: :: 

Means Mean Means Mean 

M =365 T =35. M =35.8 T =37. 

..... E F = 35.3 It) E F = 38. 

E :g E m ::::I (W) 

(W) co I~ 10 

en en 

It)	 i:: 

i::: 

r ~ \il('\ 

a: 20


Means Mean Means Mean a.. M =39.8 T =40. M =36.9 T =J85 

N E F = 41. co 0 F = 40.3 

E m ::::I It) E N co I ~ 10 !! L\ ~ co 

- m en (W) en if i 

1\ !; 

ffi 20 a.. Means Mean Means Mean 

M =38. T =40. M = 375 T = 372 (W) E F = 40. co 0 F = 37. (IV E ~ ex) ::::I ,.... ~ ~ 10 co 0 en 

It) (W) en It) ex) 

70 90 10 

Means Mean 

a.. M =352 T =:37. LENGTH (CM) 

o:t E F = 38. 

E ! ::::I m 

co (W)


(W) 

en PACIFIC HAKE 

I~Jj1 

1.\ male ---- female 70 90 10 

LENGTH (CM) 

Figure 50. --Estimated population size composition and mean lengths (em) of Pacific hake by depth 

stratum and by sex (T = males, females, and un sexed combined) for all International North Pacific 

Fisheries Commission areas sampled from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... ..... . 

,.... ,. , \ . 

... .., ,.... 

Means Mean 

M = 24.3 T = 19. 

F = 245 ..... E It) E 

E :g E m ::::I (W) ~ 10 insufficient data insufficient data co I (W) It) 

en en 

. a: 

Means Mean 

a.. M = 33. T = 38. 

N E F = 41. (0 0

E m ::::I q- It) E N insufficient data insufficient data co I ~ 10 

~ co 

- m en (W) en 

ffi 20 a.. Means Mean Means Mean 

M = 30. T = 32. M = 27.3 T = 25.9 (IV (W) E F = 33. co 0 F = 33. -...J E ~ 

::::I ,.... ~ ~ 10 ~ 0 en 

It) 

en It) 

70 90 10 

a.. LENGTH (CM) 

o:t E 

::::I m insufficient data insufficient data co (W) 

en 

(W) PACIFIC HAKE 

male female 

70 90 10 

LENGTH (CM) 

Figure 51. --Estimated population size composition and mean lengths (em) of Pacific hake by depth 

stratum and by sex (T = males , females , and unsexed combined) for the International North Pacific Fisheries Commission Conception area from the 1997 West Coast upper continental slope bottom trawl survey. 
..... ... ..... ... 

,.... ,. ,.... 

Means Mean 

M =27.8 T =27. 

..... E F = 28. It) E 

E :g E m
 ::::I (W) ~ 10 insufficient data insufficient data


co (W) co I It) 

en en 

a: 20 

Means Mean 

a.. M = 38. T = 40. 

N E F = 412 (0 0 

E m . E C'II ::::I o:t It) ~ 10 insufficient data insufficient data co I 

~ co


- m en (W) en 

ffi 20 a.. Means Mean Means Mean 

(IV M =37.3 T = 382 M = 30. T = 31. 

(W) E F = 38. co 0 F = 32. E ~ a; co 

::::I ,.... C'II 

~ 0 en 

It) 

en It) ~ 10 

70 90 10 

a.. LENGTH (CM) 

v E


E !
::::I m insufficient data insufficient data
co (W)


(W) 

en PACIFIC HAKE 

male female 

70 90 10 

LENGTH (CM) 

Figure 52. --Estimated population size composition and mean lengths (em) of Pacific hake by depth 

stratum and by sex (T = males, females , and unsexed combined) for the International North Pacific 

Fisheries Commdssion Monterey area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... ..... ,.... ,. ,.... 

Means Mean M = 32.9 T = 33. 

..... E F = 33. It) E 

E :g
 ::::I (W) co I~ 10 insufficient data insufficient data
 co (W)
 It) 

en en 

a: 20 

Means Mean 

a.. M = 39. T = 39. 

N E F = 40. co 0 

E m 

::::I o:t It) ~ 10 insufficient data insufficient data co I 

e co


- m en (W) en 

ffi 20 a.. Means Mean Means Mean 

(IV M = 38. T = 41. M = 36. T = 37. \.0 (W) E F = 42. co 0 F = 37. E ~ 

::::I ,.... ~ 0 ~ ~ 10 

en It) (W) It) /\1\ c::t: co 

70 90 10 

a.. LENGTH (CM) 

o:t E 

E !
::::I m insufficient data insufficient data
co (W)


(W) 

en P ACI FIC HAKE 

male ---- female 

. 0 70 90 10 

LENGTH (CM) 

Figure 53. --Estimated population size composition and mean lengths (em) of Pacific hake by depth 

stratum and by sex (T = males, females, and un sexed combined) for the International North Pacific 

Fisheries Commission Eureka area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... ... ..... ..... . 

,.... ,. ,.... 

Means Mean 

M = 38. T = 38. 

..... E F = 37.4 It) E 

E :g E m
 ::::I (W) co I~ 10 insufficient data insufficient data€ co (W)
 It) 

en en 

a: 20 

Means Mean 

a.. M =41. T = 415 

C"I/ E F = 42. (0 0 

E m E N ::::I o:t It) co I ~ 10 insufficient data insufficient data 

- m en (W) en 

ffi 20 a..	 Means Mean Means Mean 

M = 39.9 T = 41. M = 392 T = 39. 

(W) E F = 41. co 0 F = 38. E ~ 

::::I ,.... ~ ~ 10
 ~ 0 en 

It) (W) en It) 

rE 0
 70 90 10 

a.. LENGTH (CM) 

o:t E


E !
::::I m insufficient data insufficient data
co (W) 

(W) PACIFIC HAKE en 

male female 

70 90 10 

LENGTH (CM) 

Figure 54. --Estimated population size composition and mean lengths (em) of Pacific hake by depth 

stratum and by sex (T = males, fema1es, and unsexed combined) for the International North Pacific 

Fisheries Commission Columbia area from the 1997 West Coast upper continental slope bottom trawl 

survey. 
..... 

..... ... 

..... 

,.... 

; ,.... 

/

,.... 

Means Mean 

M = 44. T = 45. 

..... E F = 46. It) E 

E :g ::::I (W) ~ 10 insufficient data insufficient data 

co (W) co , 

It) 

en en 

I:j 

i' : ' 

a: 20 

Means Mean 

a.. M = 42. T = 43. 

N E F = 43. (0 0 

E m ::::I .q- E N It) co ' ~ 10 insufficient data insufficient data 

~ co 

- m en (W) en 

ffi 20 

a..	 Means Mean 

M = 44. T = 45. 

. (W) E co 0 F = 46. E ~ 

::::I ,.... insufficient data insufficient data ~ ~ 10 ~ 0 en 

It) (W) en It) 

o , 70 90 10 

a.. LENGTH (CM) 

o:t E


E !
::::I m insufficient data insufficient data
co (W)


(W) 

en PACIFIC HAKE 

female male 

70 90 10 


LENGTH (CM)


Pacific 

trawl survey.


bottom 

Figure 55. --Estimated population size composition and mean lengths (em) of Pacific hate by depth 

stratum and by sex (T = males, females, and un sexed combined) for the International North 

Fisheries Commission U. s. -Vancouver area from the 1997 West Coast upper continental slope

..... ... ..... ,.... 

co .....

,.... 

Means Mean M = 23. T = 24. 

..... E F = 25. It) ~ 20 

E :g E m no data no data ::::I (W) ::::I 

(W) ... I It) 

en en ..... 10 

a: 30 

Means Mean 

a.. M = 26. T = 27. 

N E F = 28. co ~ 

E m ::::I o:t It) ::::I no data no data co . 

~ co 

en (W) en ~ 

ffi 30 

a.. Means Mean Means Mean 

M = 26. T =27. M = 25. T = 26. (IV (W) E F = 28. co 0 F = 27. E ~ 

::::I ,.... ~ N 

co 0 en..... 

It) (W) en It) 

a: 30 60 80 0 a.. LENGTH (CM) 

o:t E 

E !
::::I m insufficient data insufficient data
co (W) 

en 

(W) REX SOLE 

male ------ female 

60 80 0 

LENGTH (CM) 

Figure 56. --Estimated population size composition and mean lengths (em) of rex sole by depth stratum 

and by sex (T = males, females, and unsexed combined) for all International North Pacific Fisheries Comedssion areas sampled from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... 

,.... ,.

Means Mean M = 20.2 T = 20. 

..... E F = 21.2 It) ~ 20 

E :g no data no data ::::I (W) ::::I 

co (W) co I 

It) 

en en ..... 10 

a: 30


Means Mean€ a..€ M = 29. T =30.


N E F = 30.
 co ~ 


E m


::::I o:t It) ::::I"':: no data no data co I 

~ co


en (W) en ~ 

, Jffi 30€

a.. Means Mean€

M = 27. T = 29.€ (W) E co 0 F = 29. E ~ 

::::I ,.... ~ N co 0 insufficient data insufficient data en..... 

It) (W)€ en It) c::( co€

a: 30 60 80 0 
a.. LENGTH (CM) 

o:t E 

E !
::::I m insufficient data insufficient data€

co (W)


(W)€ en € REX SOLE 

male female€

60 80 0 


LENGTH (CM) 

Figure 57. --Estimated population size composition and mean lengths (em) of rex sole by depth stratum€

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commdssion Conception area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... ,.... 

Mean 

T = 26. 

Fisheries Commission Monterey area from the 1997 West Coast upper continental slope bottom


no data 

no data 

and by sex (T = males, females, and unsexed combined) for the International North Pacific 

58. --Estimated population size composition and mean lengths (em) of rex sole by depth stratum 

------ female 

LENGTH (CM)


60 

REX SOLE


80 0 

no data 

male 

no data 

Means M = 26. 

F = 26.


c:( co


no data 

It) ~ 20 

en ~ 


(W) 

co ~ 


co 0 


It) 

E N 

... N 

en..... 

::::I co I 

::::I 

en 

T = 25. 

Mean 

T =27.


T =27.


F = 27.


Mean 

F = 25.


Mean 

F = 28.


60 80 0 


LENGTH (CM)


Means M = 27. 

Means 

. M = 24.


Means 

M = 26. 

Figure 

trawl survey.


no data


a: 30


a.. 

ffi 30 

a.. 

aJ 
a:: 30 a.. 

,.... 

..... E 

E :g ::::I (W) 

(W) 

en 

N E


E m
::::I o:t It) co I 

en (W) 

('I) E 

E ~ ::::I ,.... 

co 0 

It) 

en It) 

o:t E 

E !
::::I m co (W)


(W) 

en 
..... ... ..... . ,.... 

Mean 

T = 23. 

no data 

no data 

and by sex (T = males, females, and unsexed combined) for the International North Pacific 

59. --Estimated population size composition and mean lengths (em) of rex sole by depth stratum 

Fisheries Commission Eureka area from the 1997 West Coast upper continental slope bottom 

------ female 

LENGTH (CM)


60 

REX SOLE


80 0 

no data 

male 

no data 

Means 

M = 22. 

F = 24. 

(W) 

no data 

It) ~ 20 

..... 10 

E m 

-. It) 

(0 ~ 20


E N co ' ... co 

en ~ 

co 0 ~ N 

en..... 

::::I 

::::I 

en 

T = 21.1 

Mean 

T = 25. 

T = 26. 

F = 22. 

Mean 

F = 26. 

Mean 

F = 26. 

60 80 0 €

LENGTH (CM)


Means M = 20. 

Means M = 25. 

Means 

M = 26. 

Figure 

trawl survey. 

no data 

,.... 

..... E 

E :g ::::I (W) 

co (W) 

en 

a: 30 

a.. 

N E 

::::I o:t It) co I 

en (W) 

ffi 30 

a.. 

(W) E 

E ~ 

::::I ,.... 

co 0 

It) 

en It) 

a: 30 a.. 

o:t E 

::::I m co (W) 

(W) 

en 
..... 

..... ..... ,.., ,

,

0'\ 

,.... , , 

Means Mean 

M = 25. T = 26. 

..... E F = 27. It) ~ 

E :g E m no data no data ::::I (W) ::::I 

co (W) co I It) 

en en 

a: 30 

Means Mean 

a.. M =25. T = 27. 

N E F = 28. (0 ~ 20 

E m E N ::::I o:t It)	 ::::I no data no data 

~ co 

en (W) en ~ 

ffi 30
a..	 Means Mean Means Mean 

M = 26. T = 28.4 M = 25. T = 26. 

(W) E F = 29. co 0 F = 28. E ~


::::I ,.... ... N


co 0 en.....


It) (W) en It) c::( co 

a: 30 60 80 0 a.. LENGTH (CM) 

o:t E


::::I m no data no data co (W)


(W) 

en REX SOLE 

male ----- female 

60 80 0 

LENGTH (CM) 

Figure 60. --Estimated population size composition and mean lengths (em) of rex sole by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commdssion Columbia area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... .. ..... ... 

,.... 

..J 

,.... 

Means Mean M = 30. T = 30. 

..... E F = 30. It) ~ 20 

E :g E m no data no data ::::I (W) ::::I co (W) co I It) f : 

en en ..... 10 

W ~\ 

c: 30


a.. 

N E
 co ~ 


E m E N ::::I o:t It) insufficient data insufficient data ::::I"':: no data no data co I 

~ co 

en (W) en ~ 

ffi 30 a.. Means Mean 

M = 30. T = 30, ('I) E co 0 F = 30. E ~ 

::::I ,.... no data no data ~ N co 0 en..... 

It) (W) en It) 

a: 30 60 80 0 a.. LENGTH (CM) 

o;t E 

E !
::::I m
co (W) no data no data


(W) 

en REX SOLE 

male female 

60 80 0 

LENGTH (CM) 

Figure 61. --Estimated population size composition and mean lengths (em) of rex sole by depth stratum 

and by sex (T = males, fema1es, and unsexed combined) for the International North Pacific 

Fisheries Commission U. s. -Vancouver area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... 

. . ,.... ,.... ,,

, ,.... 

Means Mean Means Mean 

M = 44. T = 45. M = 55. T = 56. 

..... E F = 45. It) E F = 60. 

E :g ::::I (W) co (W) co I~ 10 It) 

en en..... 

a: 20 

Means Mean Means Mean 

a.. M = 47. T = 49. M = 57. T = 60. 

N E F = 50. (0 0 F = 62. 

E m E N ::::I It) co I ~ 10 

~ co 

- m en (W) en 

ffi 20 a.. Means Mean Means Mean 

M = 52. T = 53.4 M = 51.2 T = 52. 

(W) E F = 56. co 0 F = 53. E ~ 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

70 90 0 

Means Mean 

a.. M = 52. T =53. LENGTH (CM) 

v E F = 57.


E !
::::I m co (W)


(W) 

en SABLEFISH 

male ----- female 

70 90 0 

LENGTH (CM) 

Figure 62. --Estimated population size composition and mean lengths (em) of sablefish by depth stratum 

and by sex (T = males, females, and unsexed combined) for all International North Pacific Fisheries Commission areas sampled from the 1997 West Coast upper continental slope bottom


trawl survey.

..... ... 

. 

.. ..... . . 

\: !:! ! \

,.... ,.... 

,) ( 

!, ,.... / 

Means Mean M = 53. T = 54.4 

..... E It) E F = 56.


E :g€ ::::I (W) insufficient data insufficient data co I€~ 10
 co (W)
 It) 

en en..... 

;\1: \ 

: l.\ 


c: 20 

Means Mean Means Mean 

a.. M = 43. T = 45. M = 56. T = 59. 

N E F = 48. co 0 F = 61. 

E m ::::I q- It) E! ~ V\ co I 

~ co


- m en (W) en 

.:' 1i'U€

HJ: 

ffi 20 a.. Means Mean Means Mean 

M = 49. T = 50. M = 50. T = 52. 

(W) E F = 52.2 co 0 F = 54. E ~ 

::::I ,.... ~ ~ 10 ~ 0 en 

It) (W) en It) 

OJ i: il 

70 90 0 

Means Mean 

a.. M = 52. T = 53. LENGTH (CM) 

o:t E ~ F = 55.


E !
::::I m€co ('I) 

en 

(W) SABLEFISH 

male female 

i\ 

70 90 0 

LENGTH (CM) 

Figure 63. --Estimated population size composition and mean lengths (em) of sablefish by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific


Fisheries Commission Conception area from the 1997 West Coast upper continental slope bottom


trawl survey.

..... ... ..... ..... ,.... ,. .! , , 

,.... 

Means Mean Means Mean M = 45. T = 44.4 56. T = 58. 

..... E F = 43. It) E F = 61.7 

E :g E m ::::I (W) 

co (W) 11 co I~ 10 

It) 

en en..... 

a: 20 

Means Mean . Means Mean 

a.. M = 48. T = 49.4 M = 57. T = 60. 

N E F = 50. co 0 F = 62. ex) 

::::I It) co I co I~ 10 ... co 

en ('I) en 

ffi 20 a.. Means Mean Means Mean 

M = 51.0 T = 52. M = 53. T = 54. ('I) E F = 54. co 0 F = 57.2 E ~ 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

70 90 0 

Means Mean 

a.. M = 52. T = 53. LENGTH (CM) 

o:t E 'F = 56. 

E ! 

::::I m co (W) )~f 

(W) 

en SABLEFISH 

male ------ female 1\ rli \i\70 90 0 

LENGTH (CM) 

Figure 64. --Estimated population size composition and mean lengths (em) of sablefish by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commission Monterey area from the 1997 West Coast upper continental slope bottom


trawl survey.


1-1 
..... ... 

..... ,.... \

j ,.... : , 

27t	 Means Mean Means Mean 

M = 46. T = 47. M = 56.2 T = 58. 

..... E F = 47. It) E F = 60. 

E :g ::::I (W) co (W) co I~ 10 It) 

en en..... 

a: 20 

Means Mean Means Mean 

a.. M = 48. T = 49. M = 58. T =61. 

C'II E F = 51. (0 0 F = 63. 

E m E N ::::I VIt) ~ 10 co I 

~ co


- m en (W) en 

0 ...v ' 

ffi 20 a.. Means Mean Means Mean 

M = 52. T = 53. M = 50. T = 52. 

(W) E F = 55.4 co 0 F = 54. E ~ 

::::I ,.... ~ ~ 10
 co 0 en..... 

It) (W) en It) 

70 90 0 

Means Mean 

a.. M = 52. T = 53.4 LENGTH (CM) 

o:t E 1f = 58. 

E ! ::::I m co (W) 11/\ 

(W)

Cf) ,.... \1 SABLEFISH. 

male ------ female 

70 90 0 

LENGTH (CM) 

Figure 65. --Estimated population size composition and mean lengths (em) of sablefish by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commission Eureka area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... ,.... ,.... 

Means Mean Means Mean 

M = 42. T = 44. M = 53. T = 54.4 

..... E F = 45. It) E F = 59. 

E :g ::::I (W) co I~ 10 

(W) It) 

en..... en 

it\j. 

a: 20 

Means Mean Means Mean 

a.. M = 46. T = 48. M = 56. T = 58.4 

N E F = 50. co 0 F = 60. 

E m 

::::I It) ~ 10 co I 

~ co


- m 

en (W) en 

a: 20
a.. Means Mean Means Mean 

M = 53.4 T = 54. M = 50. T = 50. 

(W) E F = 59.4 co 0 F = 51. (IV E ~ 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

70 90 0 

Means Mean 

a.. M = 52. T = 54. LENGTH (CM) 

v E F = 58.


E !
::::I m 

(W) 

(W) 

en SABLEFISH 

male ------ female 

70 90 0 

LENGTH (CM) 

Figure 66. --Estimated population size composition and mean lengths (em) of sablefish by depth stratum 

and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Comndssion Columbia area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... .....

::::I V

,.... ,. ,.... 

Mean 

T = 44. 

..... E It) E 

E :g ::::I (W) insufficient data ~ 10 insufficient data insufficient data 

co (W) co I It) 

en en..... 

a: 20


Mean 

a.. 

T = 47. 

N E co 0 

E m


+-' It) co I insufficient data ~ 10 insufficient data insufficient data 

~ co +-' (0 - m en (W) en 

ffi 20 a.. Mean Mean 

T =55.4 T = 50.4 

(W) E co 0 E ~ ex) 

::::I ,.... insufficient data ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

70 90 0 

Mean 

a.. T = 55. LENGTH (CM) 

o:t E 

E !


::::I m insufficient data co (W)


(W) 

en SABLEFISH 

male ------ female 

70 90 0 

LENGTH (CM) 

Figure 67. --Estimated population size composition and mean lengths (em) of sablefish by depth stratum 

and by sex (T = males, females, and unsexed combined) for the Internationa~ North Pacific 

Fisheries Commission U. s. -Vancouver area from the 1997 West Coast upper continental slope 

bottom trawl survey. 
..... ... ..... 

.. 

,.... ,. ,.... 

Means Mean Means Mean M = 20. T = 20. M = 45. T = 45. 

..... E F = 21.9 It) E F = 45. 

E :g U = 13.2 ::::I (W)
co (W) co I~ 10


~. co It)


en en..... 

a: 20 

Means Mean Means Mean 

a.. M = 21. T = 20. M = 45. T =50. 

N E F = 23. (0 0 F = 53. 

E m U = 13. E N ::::I q- It) co I ~ 10 

~ co 

- m en (W) en 

ffi 20 

a.. Means Mean Means Mean 

,1::0 M = 31. T = 32. M = 25. T = 25. 

(W) E F = 33. co 0 F = 28. E ~ 

::::I ,.... U = 13. ~ ~ 10 co 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

a.. M = 21. T =41.1 LENGTH (CM) 

o:t E F = 23. 

E ! ::::I m co (W)


(W) 

en 

SHORTS PINE THORNYHEAD 

male ----- female 

60 80 0 

LENGTH (CM) 

Figure 68. --Estimated population size composition and mean lengths (em) of shortspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for all International North Pacific 

Fisheries Commdssion areas sampled from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... .....

::::I o:;t

,.... ,. ,.... 

Means Mean M = 43. T = 45.4 

..... E It) E F = 47. 

E :g
 ::::I (W) insufficient data insufficient data co I~ 10
 co (W) It)


en en..... 

a: 20 

Means Mean Means Mean 

a.. M = 27.2 T =28. M = 42. T =47. 

N E F = 30. co 0 F = 50. 

E m 

.... It) ~ 10 co I 

~ co


- m en (W) en 

' Y~n !\!: 

ffi 20 a..	 Means Mean Means Mean 

M = 30. T = 32. M = 33. T = 34. 

CV) E	 F = 33. co 0 F = 35.2 E ~ 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

a.. M = 27.2 T =41. LENGTH (CM) 

o:t E F = 30.


E !
::::I m 

(W) 

(W) 

en SHORTSPINE THORNYHEAD 

male ------ female 60 80 0 

LENGTH- (CM) 

Figure 69. --Estimated population size composition and mean lengths (em) of shortspine thornyhead by depth 

stratum and by sex (T = males , females, and unsexed combined) for the International North Pacific 

Fisheries Commission Conception area from the 1997 West Coast upper continental slope bottom 

trawl survey.

..... ... ..... ,.... ,. ., ,.... 

Means Mean Means Mean M = 22. T = 20.4 M = 45. T = 49. 

..... E F = 23. It) E F = 53. 

E :g E m ::::I (W) 

(W) l! ~ co I~ 10 It) 

en en..... 

a: 20


Means Mean Means Mean 

a.. M = 24. T =24. M = 47. T =52. 

N E F = 25. (0 0 F = 55. 

E m E N ::::I q- It) co I ~ 10 

~ OJ 

- m en (W) en 

/\f: 

ffi 20 a.. Means Mean Means Mean 

M = 31.4 T = 32. M = 35.4 T = 36. 0'\ (W) E F = 33. co 0 F = 39. E ~ 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) c:( co 

i: " t, 

60 80 0 

Means Mean 

a.. M = 24. T =41.1 LENGTH (CM) 

o:t E F = 25. 

E ! 

::::I m 

(W) (W) 

en SHORTSPINE THORNYHEAD 

male ----- female 

60 80 0 

LENGTH (CM) 

Figure 70. --Estimated population size composition and mean lengths (em) of shortspine thornyhead by depth 

stratum and by sex (T = males, females, and un sexed combined) for the International North Pacific 

Fisheries Commission Monterey area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... !\!\

\ 

,.... 

--.J 

,.... . , ,.... , 

(

Means Mean Means I ~ Mean M = 22. T = 20. M = 45. T = 49. 

..... E F = 23. It) E F = 53. 

E :g
 ::::I (W) ~ 10


co (W) co I It) 

en en..... 

:: d~ 

a: 20 

Means Mean Means Mean 

a.. M = 24. T =24. M = 47.2 T = 52. 

N E F = 25. co 0 F = 55, 

E m E N ::::I .qIt) ~ 10 co I 0 , 

- m en (W) en 

\N 

ffi 20 a.. Means Mean Means Mean 

31.4 T =32. M = 35.4 T = 36. 

(W) E F = 33. co 0 F = 39. E ~ 

::::I ,.... ~ ~ 10 ~ 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

a.. M = 24. T =41.1 LENGTH (CM) 

o:t E 

E !
::::I m co (W)


(W) 

en SHORTS PINE THORNYHEAD 

male female 

60 80 0 

LENGTH (CM) 

Figure 71. --Estimated population size composition and mean lengths (em) of shortspine thornyhead by depth 

stratum and by sex (T = males, females, and un sexed combined) for the International North Pacific 

Fisheries Commission Eureka area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ... ..... 

. ,.... ,.... ,.... / 

Means Mean Means Mean M = 21. T = 21. \ M = 47. T = 35. 

..... E F = 22. It) E 

E :g E m 1\ F = 32. ::::I (W) ~ 10 

co (W) co I It) i \ 

en en..... i : 

i \


;,.-1\ ' f\. 


a: 20 

Means Mean Means Mean 

a.. 21. T = 19. M = 42. T =45. 

N E F = 21. co 0 F = 47. ex) E m E N ::::I q- It) ~ 10 co I 

ex) 

- m en (W) en 

i~" 

ffi 20 a.. Means Mean Means Mean 

31. T =31. M = 22. T = 21. 

(W) E F = 31. co 0 F = 23. E ~ ex) 

::::I ,.... ~ ~ 10 co 0 en..... 

It) (W) en It) 

60 80 0 

Means Mean 

. a.. M = 21. T = 36. LENGTH (CM) 

o:t E F = 21. 

::::I m co (W)


(W) 

en 

SHORTS PINE THORNYHEAD 

male ------ female 

60 80 0 

LENGTH (CM) 

Figure 72. --Estimated population size composition and mean lengths (em) of shortspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific Fisheries Commission Columbia area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
..... ..... ..... 

,.... (!) ,.... ,.... 

..... E It) E 

E :g E m ::::I (W) insufficient data insufficient data ~ 10 insufficient data insufficient data co I (W) It) 

en en..... 

a: 20 

Means Mean 

a.. M = 20. 2 . T = 20. 

N E F = 21. co 0 

E q- E N
 ::::I It) ~ 10 insufficient data insufficient data


- m en (W) en 

a: 20


a.. Means Mean 

. M = 23. T = 24. 

(W) E co 0 F = 27. \.0 E ~ 

::::I ,.... insufficient data insufficient data ~ ~ 10 co 0 en..... 

It) (W) en It) 

60 80 0 

a.. LENGTH (CM) 

o:t E


E !
::::I m insufficient data insufficient data
co (W)


(W) 

en 

SHORTSPINE THORNYHEAD 

60 80 0 male female 

LENGTH (CM) 

Figure 73. --Estimated population size composition and mean lengths (em) of shortspine thornyhead by depth 

stratum and by sex (T = males, females, and unsexed combined) for the International North Pacific 

Fisheries Commission U. s. -Vancouver area from the 1997 West Coast upper continental slope bottom 

trawl survey. 
) 
  :)
  

) 

2000 

1500 

1200 

800 

400 

-400 

800 

1200 

Males 

Females 

150 

Stratum 1


183-366m 

Stratum 2 

367 -549m 

Stratum 3 

550-732m 

Stratum 4 

733-914m 

Stratum 5 

915- 097m 

Stratum 6 

098- 1 ,280m 

80 100 

1000 

500 

3000 

2500 

2000 

1500 

1000 

500 

600 

500 

400 

300 

200 

100 

500 

400 

300 

200 

100 

500 

400 

300 

200 

100 

500 

400 

300 

200 

100 

Stratum 1


All sexes 

Stratum 2 

All sexes 

Stratum 3 

All sexes 

Stratum 4 

All sexes 

Stratum 5 

All sexes 

Stratum 6 

All sexes 

10 20 30 40 50 60 70 80 90 100 

AGE 

1500 

1000 

......... 500 

en 

Z -500 

c:( -1000 

1500 

500 J: 400 

300 

200 en 

c::: 1 00 

CD -100 

200 

500 

400 

300 

200 

100 

Males 

Females 

Males 

Females 

Males 

Females 200 

c.. 

c.. 

500 

400 

300 

200 

100 

100 

200 

Males 

500 

400 

300 

200 

100 

100 

200 

Males 

40 50 

AGE 

Figure 74. --Estimated population age composition for sablefish by stratum and 

by sex for all the International North Pacific Fisheries Commission 

areas combined from the 1997 West Coast upper continental slope


bottom trawl survey. 
151 

Stratum 1 Stratum 1


Males 183-366m All sexes 

Females 

200 

100 Males 

C/J 

c:( -100 

C/J Females ::J -200 

200 

I- 100 Males 

C/J 

D::


W -100


Females 

200 

::J 200


100 Males 

:J::s -100 

Females 200 

c.. -

200 

c.. 

100 Males 

100 

Females 

200 

Males 

Fe ales 

40 50 

AGE 

250 

Stratum 2 200 Stratum 2 

367 -549m All sexes 

150 

100 

200 

Stratum 3 Stratum 3 

550-732m 150 All sexes 

100 

200 

Stratum 4 Stratum 4 

733-914m 150 All sexes 

100 

200 

Stratum 5 Stratum 5 

915- 097m 150 All sexes 

100 

Stratum 6 Stratum 6 

098- 1 ,280m All sexes 

80 100 10 20 30 40 50 60 70 80 90 100 

AGE 

Figure 75. --Estimated population age composition for sablefish by stratum and 

by sex for the International North Pacific Fisheries Commission 

Conception area from the 1997 West Coast upper continental slope 

bottom trawl survey. 
.

152


200 200 

Stratum 1 Stratum 1


100 Males 183-366m 150 All sexes 

100 

100 

Females 

200 

200 350 

Stratum 2 300 Stratum 2 .-... 1 
 Males 361 -549m 250 All sexes 

200 

150 

100 c:( -100 

Females :J -200 

200 200 

Stratum 3 Stratum 3 

100 Males 550-132m 150 All sexes 

en 100 

a:: 

W -100 

Females 

200 :J 200 200 

Stratum 4 Stratum 4 

100 Males 133-914m 150 All sexes 

100 

::s - :J 

100 

200 Females 

a. 

200 200 

Stratum 5 Stratum 5 

100 915- 091m 150 All sexes 

100 

100 

Females 

200 

200 200 

Stratum 6 Stratum 6 

100 Males 1 ,098- 1 ,280m 150 All sexes 

100 

100 

200 Fe ales 

40 50 80 100 10 20 30 40 50 60 10 80 90 100 

AGE AGE 

Figure 76. --Estimated population age composition for sablefish by stratum and


by sex for the International North Pacific Fisherles Commission


Monterey area from the 1997 West Coast upper continental slope 

bottom trawl survey. 
::) ) 

200 

100 Males 

100 

200 

Females 

300 

500 

.......... 250 Males 

c:( -250 

500 Females 

100

:r: I- Males 

'-"" 25 

en 

c::: -
 W -

CD - Females 

100 

::s -

Females 

a. 

Males 

Females 

Fe ales 

40 50 

AGE 

153 

500 

Stratum 1 Stratum 1 

183-366m 400 All sexes 

300 

200 

100 

1000 

Stratum 2 Stratum 2 

361 -549m 150 All sexes 

500 

250 

100 

Stratum 3 

550-132m 

Stratum 4 

733-914m 

Stratum 5 

915- 091m 

Stratum 6 

098- 280m 

80 100 

Stratum 3 

All sexes 

Stratum 4 

All sexes 

Stratum 5 

All sexes 

Stratum 6 

All sexes 

10 20 30 40 50 60 10 80 90 100 

AGE 

Figure 77. --Estimated population age composition for sablefish by stratum and 

by sex for the International North Pacific Fisheries Commission 

Eureka area from the 1997 West Coast upper continental slope 

bottom trawl survey. 
) ) .... 

500 

250 Males 

250 

500 

Females 750 

750 

500 

Males 

250 

Z -250 

c:( -500 

154 

1000 

Stratum 1 Stratum 1 

183-366m 750 All sexes 

500 

250 

1500 

Stratum 2 Stratum 2 

367 -549m 1000 All sexes 

500 

750 Females 

J: 200 250 

150 Stratum 3 Stratum 3 

Males 550-732m 200 All sexes '-'" 1 

150 en

a:: 100 

m - Females 

100 

::) 200 200 

150 Stratum 4 Stratum 4 

Males 733-914m 150 All sexes 100 

I- 100 

:5 -

Females 100 

a.. 

100 100 a.. Stratum 5 Stratum 5 

Males 915- 097m All sexes 

Females 

100 

100 100 

Stratum 6 Stratum 6 

Males 098- 1 , 280m All sexes 

100 Fe ales 

40 50 80 100 10 20 30 40 50 60 70 80 90 100 

AGE AGE 

Figure 78. --Estimated population age composition for sablefish by stratum and 

by sex for the International North Pacific Fisheries Commission 

Columbia area from the 1997 West" Coast upper continental slope 

bottom trawl survey. 
........... ............. 

150 

100 Males 

Females 100 

Males 

c:( -

Females :J -


I- Males


en 

cr::: 

W -

Females 

:J 

Males 

:J Females 

a. 

Males 

Females 

Males 

Fe ales 

155 

200 

Stratum 1 Stratum 1 

183-366m 150 All sexes 

100 

Stratum 2 . Stratum 2 

361 -549m All sexes 

Stratum 3 Stratum 3 

550-132m All sexes 

Stratum 4 Stratum 4 

133-914m All sexes 

Stratum 5 Stratum 5 

915- 091m All sexes 

Stratum 6 Stratum 6 

098- 280m All sexes 

40 50 80 100 10 20 30 40 50 60 10 80 90 100 

AGE AGE Figure 79. --Estimated population age composition for sablefish by stratum and 

by sex for the International North Pacific Fisheries Commission


u. s. Vancouver from the 1997 West Coast upper continental slope 

bottom trawl survey.