SC/F16/JR4

Methodology and survey procedures under the JARPNII offshore component- during 2008 to 2014 with special
emphasis on whale sampling procedures
Takeharu Bando1), Genta Yasunaga1), Tsutomu Tamura1), Koji Matsuoka1), Hiroto Murase2), Toshiya Kishiro2) andTomio Miyashita2)
1) The Institute of Cetacean Research, 4-5 Toyomi-cho, Chuo-ku, Tokyo, 104-0055, Japan
2) National Research Institute of Far Seas Fisheries, 2-12-4 Fukuura, Kanazawa, Yokohama, Kanagawa 236-8648, Japan

Contact E-mail: bando@cetacean.jp

ABSTRACTThe methodology and survey procedures of the Japanese Whale Research Program under Special
Permit in the western North Pacific (JARPNII) offshore component surveys conducted during 2008
to 2014 is summarized in this paper. The research was conducted alternately in the early season (MayJuly) and the late season (June-August). The research has three components. 1）whale sampling survey,2) co-operative whale sampling survey and acoustic/trawl prey survey and 3) whale sighting survey.
In the whale sampling survey, two or three sighting/sampling vessels (SSVs) conducted sighting andwhale sampling survey on predetermined track lines. The zigzag-shaped track line was set reflecting
previous sighting information of targeted whale species and sea conditions. Furthermore, Special
Monitoring Surveys (SMS) were conducted in areas where the density of targeted whale species was
expected to be high. Track lines for the SMS were designed independently from the original tracklines. A maximum of 100 common minke, 50 Bryde’s, 100 sei and 10 sperm whales were taken eachyear from 2008 to 2013. Following the 31 March, 2014 Judgment of the International Court of Justice(ICJ), the Government of Japan voluntarily reviewed the state of JARPNII, which resulted in thesuspension of sampling of sperm and common minke whales and, 25 of the 50 Bryde’s and 10 of the
100 sei whales were studied by only using non-lethal methods in the 2014 survey. For the co-operative
whale sampling survey and acoustic/trawl prey surveys, some special blocks were set and surveys ofeach component were conducted concurrently. The whale sighting survey by sighting vessels (SVs)
was conducted every year independently from the whale sampling survey.
1. BACKGROUND
In conformity to Article VIII of the International Convention for the Regulation of Whaling, JARPNII was
authorized by the Government of Japan (Government of Japan, 2002). After two seasons of feasibility research in2000 and 2001, the full-scale research of JARPNII started in 2002 season. The full-scale study aimed at i) feeding
ecology and ecosystem, ii) monitoring of environmental pollutants in cetaceans and the marine ecosystem and iii)
to elucidate the stock structure (Government of Japan, 2002).
The full scale JARPNII consists of two components. The ‘offshore’ survey, which was conducted by the Nisshin
Maru research unit and two ‘coastal’ surveys (Sanriku and Kushiro), which was conducted by small type catcher
boats. The coastal component covers the temporal and spatial gaps, which could not be covered by the Nissin Maru
unit (Government of Japan, 2002).
The offshore component of JARPNII has three research components, 1) whale sampling survey, 2) co-operative
survey of whale sampling survey and acoustic/trawl prey survey and 3) whale sighting survey. The research areaof the offshore component is set in sub-areas 7, 8 and 9, and the target species and sample size for the lethal
component were set as 100 common minke, 100 sei, 50 Bryde’s and 10 sperm whales (Government of Japan, 2002;
2004).
An expert workshop to review the JARPNII programme was conducted at 2009 using data and samples collected
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during the feasibility (2000 and 2001) and the first six years (2002 to 2007) surveys (IWC, 2010) and a review ofsurvey methodology during that period was presented to the meeting (Kishiro, et al., 2009, Kiwada et al., 2009,
Murase et al., 2009, Tamura et al., 2009a).
After 2007, surveys have been conducted with almost same manner. However, in 2014, following the 31 March,2014 Judgement of the International Court of Justice (ICJ), the Government of Japan voluntarily reviewed the stateof JARPNII, which resulted in the suspension of sampling of sperm and common minke whales and 25 of the 50
Bryde’s and 10 of the 100 sei whales will be studied by only using non-lethal methods in the 2014 survey.
This paper summarized the methodology and survey procedure of JARPNII offshore component conducted during
2008 to 2014 with special emphasis on whale sampling procedures.
2. GENERAL METHODOLOGY
2.1 Research area and season
The research area of JARPNII was sub-areas 7, 8 and 9, excluding the EEZ zones of foreign countries (Figure 1).
This area is the Western Subarctic Gyre region in the North Pacific (Favorite et al., 1976) known as an area of highproduction capacity. The Oyashio, which is the Western Boundary Current of the gyre, flows into the sea east of
Honshu and sustains the high productivity there. The research season extended from spring to autumn. The surveys
were conducted alternately in early season (May-July) and late season (June-August).
2.2 Research vessels
Following vessels were used for JARPNII offshore component (Table 1).
1) Research base vessel (RB)
Nisshin-maru (NM ; Gross tonnage was increased from 8,030 to 8,145)･･･2008 - 2014 seasons
2) Sighting and sampling vessel (SSV)
Yushin-maru (YS1; from 720 to 724GT)･･･2008, 2010 – 2014 seasons
Yushin-maru No.2 (YS2; 747GT)･･･2008 – 2014 seasons
Yushin-maru No.3 (YS3; 742GT)･･･2008, 2009 seasons
3) Scientific echo sounder survey vessel (ESV)
Kaiko maru (KK1; 860GT)･･･2008 season
Shunyo maru (SHU; 887GT)･･･2008 – 2009, 2012 – 2013 seasons
Hokko maru (HK; 1,246GT)･･･2010 – 2011 seasons
4) Dedicated sighting vessel (SV)Kaiko maru (KK1; 860GT)･･･2008 season
Kyoshin-maru No.2 (KS2; 372GT)･･･2008 season
Yushin-maru (YS1)･･･2009, 2011 – 2014 seasons
Yushin-maru No.2 (YS2)･･･2011 – 2014 seasons
Yushin-maru No.3 (YS3)･･･2010 – 2014 seasons
Syonan maru No.2 (SM2; 712GT)･･･2013 season
2.3 Research component
2.3.1 Whale sampling survey1) Objective
The objective of the whale survey component was sampling of whales for collecting data and samples required toachieve the objectives of JARPNII. Biological surveys of sampled whales was conducted on the research basevessel.
2) Research vessels
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Two or three sighting/sampling vessels and one research base vessel (NM) (Table 1).
3) Design of track line
The track lines and the allocation of vessels were set in similar manner as in previous JARPN and the 2000 – 2007
JARPNII surveys (Fujise, 2000; Tamura et al., 2009a). The survey order of sub-area/strata was chosen based on
seasonal distribution of whales and logistics, and zigzag-shaped track lines were set in the research area, reflecting
the available information such as sea surface temperature. The track line consisted of one main and two parallelcourses established seven n.miles apart from main course. Furthermore, in order to secure enough samples, theSpecial Monitoring Survey (SMS) was conducted in areas where the density of targeted whale species were
expected to be high. Track lines in the SMS were designed independently from the original track lines. The tracklines of SMS consisted of one main and two parallel courses established seven n. miles apart from main course.
4) Sighting methods
Sighting procedures were similar to the previous surveys of JARPN and 2000 - 2007 JARPNII (Fujise, 2000;
Tamura et al., 2009a). Two modes of sighting, NSC and NSS modes were adopted depending on weather and sea
conditions. The condition to conduct surveys under NSC mode were similar to those established in Japanesesighting surveys conducted by the National Research Institute of Far Seas Fisheries (i.e. visibility of 2 n.miles ormore and Beaufort wind scale of 4 or below). The NSS mode was used under worse weather and sea condition,
though the sampling of whales was still possible. These two survey modes were recorded separately for future
analysis.
Basically, each of the SSVs changed the track line every day to avoid possible sighting bias by a fixed position.
Starting position of the day was set at a point where one of the SSVs ended the survey in the previous day in themost advanced position. Other SSVs moved to the starting position of next day after the end of the daily survey.
These daily arrangements of SSVs were determined by the cruise leader on the research base vessel. The survey
was conducted at a speed of 10.5 knots from 1 hour after sunrise to 1 hour before sunset (or maximum from 06:00
to 18:00), with three top men assigned to the barrel.
Sightings of whales were classified into primary and secondary sightings. The primary sightings were those seen
in normal searching mode (three observers searched from the top barrel of the vessel on the predetermined trackline). The secondary sightings were those seen in out of normal searching mode (e.g. during confirming or chasing
whales, no observer in the top barrel or the vessel engaging in other work).
A researcher on board recorded sighting effort and all of the large whale sightings. The sighting record includes
date, time, position of the vessel, survey mode (primary or secondary), angle and distance from the vessel at thesighting, species and school size, estimated body length, etc. Weather information (weather, visibility, winddirection and speed, sea surface water temperature) was recorded every hour.
5) Sampling methods
All common minke, Bryde’s, sei and sperm whales of primary and secondary sighting, excluding cow and calf
pairs were targeted for sampling. When the sighting of the common minke, Bryde’s, sei and sperm whales occurred,
the SSV approached the school of whales. Observers on the top barrel counted number of whales in the school andestimated body length of each animal. If a sighting was a solitary whale, it was sampled immediately after the
body length estimation. If a school consisted of two or more animals, the researcher assigned a serial number toeach individual and the first target whale was chosen using the tables of random sampling numbers (TRS). When
two whales were sampled from a school, the second target was selected by the same manner after the first animal
was sampled. In this case, the remaining individuals were renumbered according to the latest position in the school.
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In addition to the sightings of common minke, sei, Bryde’s and sperm whales or whales suspected to be these
species, the SSV approached large baleen whales such as blue, fin, right and humpback whales for conductingsome experiments (see section 2.5).
2.3.2 Co-operative survey of whale sampling survey and acoustic/trawl prey survey1) Objective
The co-operative survey of whale sampling survey and acoustic/trawl prey survey has two research units, the whale
sampling unit and the prey survey unit. The research was concurrently conducted in the same limited blocks. The
objective of this component was to collect data such as stomach contents of whales and biomass of their preyspecies in the field to estimate prey preferences of whales.
2) Research area and design of track line
In the co-operative survey, small blocks were defined considering environmental information such as sea surface
temperature. Zigzag-shaped track lines were set in each small block, and both the whale sampling unit and theprey survey unit concurrently carried out surveys along the same track line.
3) Whale sampling unit
The whale sampling unit consist of two or three sighting/sampling vessels and one research base vessel. This
unit conduct whale sampling survey following the methods described in section 2.3.1.
4) Prey survey unit
The prey survey unit consisted of an echo sounder survey vessel. This unit conducted the following prey species
surveys along the same track lines with the whale sampling unit.
1) Quantitative echosounder survey
EK500 (SIMRAD, Norway), 38 kHz and 120 kHz, in 2008 season
ER60 (SIMRAD, Norway), 38 kHz, 70 kHz and 120 kHz, in 2008, 2009, 2012 and 2013 seasons
ER60 (SIMRAD, Norway), 38 kHz, 70 kHz 120 kHz and 200 kHz, in 2010 and 2011 seasons
2) Net sampling
Surface and mid water trawling by mid-water trawl net, in 2008 – 2013 seasons
MOCNESS (Multiple Opening and Closing Nets Environmental Sampling System), in 2008 and 2009seasons
NORPAC (North Pacific Standard Net), in 2008 – 2013 seasons
IKMT (Isaacs-Kidd Midwater Trawl), in 2008 season
VMPS (Vertical Multiple Plankton Sampler), in 2010 season
MOHT (Matsuda-Oozeki-Hu-Trawl), in 2010 and 2011 seasons
BONGO, in 2012 season3) Oceanographic survey
CTD, in 2008 – 2013 seasons
XCTD, in 2013 season
In the 2008, 2009, 2012 and 2013 seasons, SHU conducted the prey surveys in the research area. In the 2010 and2011 seasons, HK played the same role. In the 2008 season, KK1 conducted the prey survey and whale sighting
survey.
2.3.3 Whale sighting survey
Dedicated sighting vessel (SV: KS2, KK1, YS1, YS2, YS3 and SM2) conducted whale sighting surveys
independently from the whale sampling surveys. Track lines of the SVs were designed independently from the
SSV’s track lines. A researcher on board recorded sighting effort and all of the sightings of large whales. The
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sighting record includes date and time of the sighting, position of the vessel, survey mode at sighting (primary or
secondary), distance and angle from the vessel, species and school size, estimated body length, etc. Details of themethod of the dedicated sighting surveys is described in Matsuoka et al., (2016: SC/F16/JR2).
2.4 Biological survey
All of the sampled whales were biologically examined by researchers on the research base vessel. Biologicalsurveys, such as measurement of body proportion, stomach content analysis and sampling of tissues wereconducted. Table 2 summarized number of sampled whales by species, sub-area and year. Details of biological
data and samples are described in Annex 2 of Tamura et al., (2016: SC/F16/JR01).
2.5 Non-lethal surveys
2.5.1 Biopsy sampling
Biopsy sampling experiments were carried out throughout the survey period by SSVs and SVs. A compoundcrossbow was used for the experiments. Table 3 summarizes number of biopsy samples collected during the 2008
and 2014 JARPNII. A total of 15 blue, three fin, 37 sei, 90 Bryde’s, 9 humpback and 19 right whales were sampled
by SSVs and SVs.
2.5.2 Fecal sampling
Fecal sampling experiments were carried out in the 2014 survey by SSVs and SVs. During the observation for
81.0 hours on 679 sei whales, 21 cases of excretion were observed and three fecal samples were collected. For
Bryde’s whales, during the observation of 38.1 hours on 158 individuals, three cases of excretion were observed
but no sample was collected. Four common minke whales were observed for 0.3 hours but no excretion wasobserved (Mogoe et al., 2015).
2.5.3 Photo-ID
Table 4 summarizes number of photographed whales by photo-ID experiments during the 2008 and 2014 JARPNII.
A total of 55 blue, 27 humpback and 27 right whales were photographed by SSVs and SVs.
2.6 Marine debris
Marine debris drifting on sea surface was recorded during transit between port and the research area by the researchbase vessel. Debris in the stomach contents of sampled whales was examined on the research base vessel.
3. OUTLINE OF RESEARCH CRUISES
Table 1 summarizes the 2008 to 2014 JARPNII surveys. The followings are brief summaries of each survey. Detailsof each cruise are described in cruise reports of each survey (Bando et al., 2010; 2013; 2014, Tamura, et al., 2009b;
2012; 2015, Yasunaga et al., 2011). Cruise track lines, sighting positions of large whales and sampled individuals
in each of the surveys are shown in Figures 2 - 4.
3.1. 2008 season (Tamura et al., 2009b)
The seventh full scale research was conducted in sub-areas 7, 8 and 9 from 6 June to 24 August 2008 (80 days
including transit), using three SSVs, one SV, two ESVs and one RB. The total searching distance by three SSVs
was 5,758 n. miles and 66 common minke, 234 Bryde’s, 386 sei and 277 sperm whales were sighted. A total of 59
common minke, 50 Bryde’s, 100 sei and two sperm whales was sampled. The dedicated sighting survey was
conducted in sub-areas 7, 8 and 9 from 1 July to 31 August 2008 using one SV (KS2) and one ESV/SV (KK1).
Total searching distance was 5,147 n. miles and 11 common minke, 292 Bryde’s, 139 sei and 294 sperm whales
were sighted. Two special blocks were set for the co-operative survey on the prey species and whale sampling.
The co-operative survey was conducted from 1 to 26 July in sub-areas 8 and 9 for first period and from 18 July to
5 August in sub-area 7 for second period. One Bryde’s whale was tracked by satellite tag for 21 days (Nishiwaki
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et al., 2009; Murase et al., 2016 (SC/F16/JR45)).
3.2. 2009 season (Bando et al., 2010)
The eighth full scale research was conducted in sub-areas 7, 8 and 9 from 11 May to 29 July 2009 (80 days
including transit), using two SSVs, one SV, one ESV and one RB. The total searching distance by SSVs was 3,757
n. miles and 52 common minke, 87 Bryde’s, 386 sei and 167 sperm whales were sighted. A total of 43 common
minke, 50 Bryde’s, 100 sei and one sperm whales was sampled. The dedicated sighting surveys were conducted in
sub-areas 8 and 9, using one SV (YS1). The survey was conducted from 24 May to 19 June. Total searching
distance was 2,617 n. miles and 11 common minke, six Bryde’s, 96 sei and 120 sperm whales were sighted. One
special block was set for the co-operative survey on the prey species and whale sampling. The co-operative survey
was conducted from 5 to 22 July in sub-areas 8 and 9.
3.3. 2010 season (Yasunaga et al., 2011)
The ninth full scale research was conducted in sub-areas 7, 8 and 9 from 9 June to 22 August 2010 (75 days
including transit), using two SSVs, one SV, one ESV and one RB. The total searching distance by SSVs was 3,749
n. miles and 15 common minke, 136 Bryde’s, 333 sei and 193 sperm whales were sighted. A total of 14 common
minke, 50 Bryde’s, 100 sei and 3 sperm whales was sampled. The dedicated sighting survey was conducted in subareas 9 and 13, using one SV (YS3). The survey was conducted from 9 June to 18 July. Total searching distancewas 2,488 n. miles and 57 Bryde’s, 71 sei and 40 sperm whales were sighted. Two special blocks were set for the
co-operative survey on the prey species and whale sampling. The co-operative survey was conducted from 24 to
29 July in sub-areas 8 and 9 for first period and from 30 July to 4 August in sub-area 9 for second period.
3.4. 2011 season (Tamura et al., 2012)
The 10th full scale research was conducted in sub-areas 7, 8 and 9 from 11 June to 5 September 2011 (87 days
including transit), using two SSVs, three SVs, one ESV and one RB. The total searching distance by SSVs was
5,156 n. miles and 53 common minke, 149 Bryde’s, 476 sei and 295 sperm whales were sighted. A total of 49
common minke, 50 Bryde’s, 95 sei and 1 sperm whale were sampled. The dedicated sighting survey was conductedin sub-areas 8 and 9 from 5 to 31 May by two SVs (YS1, YS2) and from 17 to 31 May by one SV (YS3). Total
searching distance was 4,060 n. miles and 3 common minke, six Bryde’s, 51 sei and 116 sperm whales were sighted.
One special block was set for the co-operative survey on the prey species and whale sampling. The co-operative
survey was conducted from 16 to 23 June in sub-areas 8 and 9.
3.5. 2012 season (Bando et al., 2013)
The 11th full scale research was conducted in sub-areas 7, 8 and 9 from 16 May to 3 August 2012 (80 days
including transit), using two SSVs, three SVs, one ESV and one RB. The total searching distance by SSVs was
2,326 n. miles and 86 common minke, 86 Bryde’s, 304 sei and 218 sperm whales were sighted. A total of 74
common minke, 34 Bryde’s, 100 sei and 3 sperm whales were sampled. Three dedicated sighting surveys wereconducted. The first survey was conducted from 17 May to 30 June in sub-area 7 by one SV (YS3), the second
survey was conducted from 20 August to 3 October in parts of sub-areas 7, 8 and 9 by two SVs (YS1, YS2) andthe third survey was conducted from 14 September to 1 October in sub-area 7 by one SV (YS3). Total searching
distance was 2,728 n. miles for the first survey, 2,429 n. miles for the second survey and 728 n. miles for the thirdsurvey, respectively. A total of 41 common minke, 49 Bryde’s, 14 sei and 168 sperm whales were sighted during
the first survey. During the second survey, a total of 134 Bryde’s and 251 sperm whales were sighted. A total of 24
common minke, 1 sei and 7 sperm whales were sighted during the third survey. One special block was set for the
co-operative survey on the prey species and whale sampling. The co-operative survey was conducted from 28 July
to 21 August in sub-areas 8 and 9.

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3.6. 2013 season (Bando et al., 2014)
The 12th full scale research was conducted in sub-areas 8 and 9 from 25 July to 7 October 2013 (75 days includingtransit), using two SSVs, four SVs, one ESV and one RB. The total searching distance by SSVs was 1,816 n. miles
and 3 common minke, 56 Bryde’s, 442 sei and 167 sperm whales were sighted. A total of three common minke,
28 Bryde’s, 100 sei and 1 sperm whale were sampled. Three dedicated sighting surveys were conducted. The firstsurvey was conducted from 18 May to 26 June in sub-area 7 and 8 by two SVs (YS1, YS2), the second survey was
conducted from 20 July to 23 August in sub-areas 8 and 9 by one SV (SM2) and the third survey was conductedfrom 12 September to 7 October in sub-areas 8 and 9 by one SV (YS3). Total searching distance was 3,470 n.
miles for the first survey, 987 n. miles for the second survey and 539 n. miles for the third survey, respectively. A
total of seven common minke, 55 Bryde’s, 56 sei and 225 sperm whales were sighted during the first survey.
During the second survey, a total of 12 Bryde’s, 116 sei and 60 sperm whales were sighted. A total of two common
minke, 10 Bryde’s, 14 sei and 61 sperm whales were sighted during the third survey. One special block was set forthe co-operative survey on the prey species and whale sampling. The co-operative whale prey survey was
conducted from 24 July to 22 August in sub-areas 8 and 9. The main purpose of the prey survey in this year wasrecording of underwater behaviour of Bryde’s and sei whales by using acoustic transmitters. Transmitters wereattached to two sei whales and tracked for 31 hours 59 minutes and 10 hours 11 minutes, respectively. Results ofthis experiment is reported in Ishii et al., (2016: SC/F16/JR25).
3.7. 2014 season (Tamura et al., 2015)
The 13th full scale research was conducted in sub-areas 7, 8 and 9 from 16 May to 29 July 2014 (75 days includingtransit), using two SSVs, three SVs and one RB. Following the 31 March, 2014 Judgment of the International
Court of Justice (ICJ), the Government of Japan voluntarily reviewed the state of JARPNII which resulted in thesuspension of sampling of sperm and common minke whales and 25 of the 50 Bryde’s and 10 of the 100 sei whales
were studied by only using non-lethal methods in the 2014 survey (Fisheries Agency of Japan, 2015). The total
searching distance by SSVs was 3,307 n. miles and 2 common minke, 116 Bryde’s, 346 sei and 69 sperm whales
were sighted. A total of 25 Bryde’s and 90 sei whales were sampled and biopsy samples were collected from 25
Bryde’s and 16 sei whales by SSVs. Two dedicated sighting surveys were conducted. The first survey was
conducted from 11 May to 29 June in sub-areas 7, 8 and 9 by one SV (YS3), the second survey was conductedfrom 1 August to 14 September in the southern parts of sub-areas 7, 8 and 9 by two SVs (YS1, YS2). Total
searching distance was 2,823 n. miles for the first survey and 2,347 n. miles for the second survey, respectively. A
total of two common minke, 42 Bryde’s, 333 sei and 69 sperm whales were sighted during first survey. During thesecond survey, a total of 72 Bryde’s and 69 sperm whales were sighted. The co-operative survey on the prey species
and whale sampling was not conducted in this season due to logistical reason.
References
Bando, T., Kiwada, H., Mogoe, T., Isoda, T., Mori, M., Tsunekawa, M., Yoshimura, I., Nakai, K., Sato, H., Tanaka,
H., Inagaki, M., Tamahashi, K., Yoshida, K., Morine, G., Watanabe, H., Fujiwara, G., Eguchi, K. and Tamura,T. 2010. Cruise Report of the second phase of the Japanese Whale Research Program under Special Permit
in the Western North Pacific (JARPN II) in 2009 (part I) - Offshore component - Paper SC/62/O4 presented
to the IWC Scientific Committee, June 2010 (unpublished). 34pp.
Bando, T., Mogoe, T., Isoda, T., Wada, A., Mori, M., Tsunekawa, M., Tamahashi, K., Moriyama, R., Miyakawa,N., Kadowaki, I., Watanabe, H. and Ogawa, T. 2013. Cruise Report of the second phase of the Japanese
Whale Research Program under Special Permit in the Western North Pacific (JARPN II) in 2012 (part I) Offshore component - Paper SC/65a/O03 presented to the IWC Scientific Committee, June 2013
(unpublished). 33pp.
Bando, T., Konishi, K., Wada, A., Oikawa, H., Sato, H., Tsunekawa, M., Yoshimura, I., Konagai, T., Ueda, E.,
Murase, H and Ogawa, T. 2014. Cruise Report of the second phase of the Japanese Whale Research Program
7

SC/F16/JR4
under Special Permit in the Western North Pacific (JARPN II) in 2013 (part I) - Offshore component - Paper
SC/65b/SP02 presented to the IWC Scientific Committee, June 2014 (unpublished). 23pp.
Favorite, F., A., Dodimead, J. and Nasu, K. 1976. Oceanography of the Subarctic Pacific region. Bull. Int. North
Pacific Comm. 33: 1-187.
Fisheries Agency of Japan. 2015. Response to SC 65b recommendation on Japan’s Whale Research Program underSpecial Permit in the Western North Pacific (JARPN II). Paper SC/66a/SP10 presented to the IWC ScientificCommittee, May 2015 (unpublished) 10pp.
Fujise, Y., 2000. Outline of the research activities of the Japanese Whale Research Program under Special Permit
in the North Pacific (JARPN) from 1994 to 1999. Paper SC/F2K/J9 presented to the IWC ScientificCommittee Workshop to Review the Japanese Whale Research Programme under Special Permit for North
Pacific Minke Whales (JARPN), Tokyo, 7-10 February 2000 (unpublished). 30pp.
Government of Japan. 2002. Research Plan for Cetacean Studies in the Western North Pacific under Special Permit(JARPN II). Paper SC/54/O2 presented to the IWC Scientific Committee, May 2002 (unpublished). 115pp.
Government of Japan. 2004. Some consideration of the feasibility components of the JARPN II research plan.
Paper SC/56/O2 presented to the IWC Scientific Committee, May 2004 (unpublished). 36pp.
International Whaling Commission. 2010. The report of the Expert Workshop to review the ongoing JARPN II
Programme. J. Cetacean Res. Manage. 11 (Supple 2): 405-449.
Ishii, M., Murase, H., Fukuda, Y., Sawada, K., Sasakura, T., Tamura, T., Bando, T., Matsuoka, K., Shinohara, A.,
Nakatsuka, S., Katsumata, N., Miyashita, K. and Mitani, Y. 2016. A short note on feeding behavior of sei
whales observed in JARPNII. Paper SC/F16JR25 presented to the JARPNII special permit expert panel
review workshop, Tokyo, February 2016 (unpublished).
Ishikawa, H., Yuzu, S., Shimamoto, K., Bando, T., Ohshima, K., Kasai, H., Kinoshita, T., Mizushima, Y., Iwakami,
H., Nibe, T., Hosoyama, T., Kuramochi, T., Numano, K. and Miyamoto, M. 1997. Cruise report of theJapanese Whale Research Program under a Special Permit in the North Pacific (JARPN) in 1997. Paper
SC/49/NP9 presented to the IWC Scientific Committee, September 1997 (unpublished). 28pp.
Kiwada, H., Kumagai, S. and Matsuoka, K. 2009. Methodology and survey procedure under JARPN II – Offshore
and coastal component of Sanriku and Kushiro-. Paper SC/J09/JR2 presented to the JARPN II review meeting,January 2009 (unpublished). 27pp.
Kishiro, T., Yoshida, H., Yasunaga, G., Bando, T., Mogoe, T. and Kato, H. 2009. Methodology and survey
procedure under the JARPN II - coastal component of Sanriku and Kushiro – during 2008 to 2014, withspecial emphasis on whale sampling procedures. Paper SC/J09/JR3 presented to the JARPN II review
meeting, January 2009 (unpublished). 18pp.
Matsuoka, K., Otani, S., Isoda, T., Wada, A., Kumagai, S., Ohshima, T., Yoshimura, I., Sugiyama, K., Aki, M.,
Kato, K., Bhuiyan M. M. U., Funasaka, N., Suzuki, Y., Sudo, R., Motohashi, Y., Mori, M., Tsunekawa, M.,
Inagake, D., Murase, H. and Ogawa, T. 2008. Cruise report of the second phase of the Japanese Whale
Research Program under Special Permit in the Western North Pacific (JARPN II) in 2007 - Offshore
component -. Paper SC/60/O5 submitted to the IWC Scientific Committee, June 2008 (unpublished). 40pp.
Matsuoka, K., Hakamada, T. And Miyashita, T. 2016. Methodology and procedure of the dedicated sighting
surveys in JARPN II (2008-2013) - Offshore component -. Paper SC/F16/JR2 presented to the JARPNII
special permit expert panel review workshop, Tokyo, February 2016 (unpublished).
Mogoe, T., Tamura, T., Yoshida H., Kishiro, T., Yasunaga, G., Bando, T., Konishi, K., Nakai, K., Kanda, N.,
Kitamura, T., Nakano, K., Katsumata, H., Handa, Y. and Kato, H. 2015. Preliminary report of efficiency andpracticability of biopsy sampling, faecal sampling and prey species identification from genetic analyses in
2014, and workplan for non-lethal research in JARPN II. Paper SC/66a/SP11 presented to the IWC ScientificCommittee, May 2015 (unpublished). 11pp.
Murase, H., Watanabe, H., Yonezaki, S., Tamura, T., Matsuoka, K., Fujise, Y. and Kawahara, S. 2009.
Methodology and procedures of cetacean prey surveys in JARPN II -Offshore Component-. Paper
SC/J09/JR7 presented to the JARPN II Review Workshop, Tokyo, January 2009 (unpublished). 11pp.
8

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Murase, H., Tamura, T., Otani, S. and Nishiwaki, S. 2016. Satellite tracking of Bryde’s whales Balaenoptera edeni
in the offshore western North Pacific in summer 2006 and 2008. Paper SC/F16/JR45 presented to the
JARPNII special permit expert panel review workshop, Tokyo, February 2016 (unpublished).
Nishiwaki, S., Otani, S. and Tamura, T. 2009, Movement of Bryde's whales in the western North Pacific as revealedby satellite tracking experiments conducted under JARPN II. Paper SC/61/O7 presented to the IWC ScientificCommittee, May 2009 (unpublished). 7pp.
Tamura, T., Matsuoka, K. and Fujise, Y. 2009a. Methodology and survey procedure under the JARPN II - offshore
component- with special emphasis on whale sampling procedures. Paper SC/J09/JR4 presented to the JARPNII Review Workshop, Tokyo, January 2009 (unpublished). 16pp.
Tamura, T., Otani, S., Isoda, T., Wada, A., Yonezaki, S., Mori, M., Tsunekawa, M., Fukutome, K., Nakai, K., Satoh,
H., Nomura, I., Nagatsuka, S., Umatni, M., Koyanagi, T., Takamatsu, T., Kawabe, S., Kandabashi, S.,
Watanabe, H, Kumagai, S., Sato, H. and Ogawa, T. 2009b. Cruise Report of the second phase of the Japanese
Whale Research Program under Special Permit in the Western North Pacific (JARPN II) in 2008 (part I) Offshore component -. Paper SC/61/O4 presented to the IWC Scientific Committee, May 2009 (unpublished).
49pp.
Tamura, T., Mogoe, T., Nakai, K., Mori, M., Tsunekawa, M., Yoshimura I., Ishikawa, Y., Kawabe, S., Yamaguchi,F., Yamazaki, M., Ueta, E., Watanabe, H. and Eguchi, K. 2012. Cruise Report of the Second Phase of theJapanese Whale Research Program under Special Permit in the Western North Pacific (JARPN II) in 2011
(part I) - Offshore component -. Paper SC/64/O3 presented to the IWC Scientific Committee, May 2012
(unpublished). 28pp.
Tamura, T., Kanda, N., Nakai, K., Sakamoto, N., Okitsu, Y., Kato, K., Yoshii, K., Mori, M., Tsunekawa, M.,
Kawabe, S., Yamaguchi, F., Honma, H. and Ogawa, T. 2015. Cruise Report of the Second Phase of theJapanese Whale Research Program under Special Permit in the Western North Pacific (JARPN II) in 2014
(part I) - Offshore component -. Paper SC/66a/SP6 presented to the IWC Scientific Committee, May 2015
(unpublished). 14pp.
Tamura, T., Kishiro, T., Yasunaga, G., Murase, H., Kitakado, T and Pastene, L.A. 2016. The Japanese Whale
Research Program under Special Permit in the western North Pacific Phase-II (JARPN II): results andconclusions in the context of the three main objectives, and scientific considerations for future research. Paper
SC/F16/JR1 presented to the JARPNII special permit expert panel review workshop, Tokyo, February 2016
(unpublished).
Yasunaga, G., Kiwada, H., Mogoe, T., Wada, A., Nakai, K., Mori, M., Tsunekawa, M., Kasai, H., Ohshima, T.,
Yoshimura, I., Sato, H., Sakamoto, N., Watanabe, H., Fujiwara, G., Ogawa, T. and Tamura, T. 2011. Cruise
report of the Second Phase of the Japanese Whale Research Program under Special Permit in the Western
North Pacific (JARPN II) in 2010 (part I) - Offshore component -. Paper SC/63/O2 presented to the IWC
Scientific Committee, June 2011 (unpublished). 38pp.

9

SC/F16/JR4
Table 1. Outline of JARPNII research activity between 2008 and 2014.
Year

Research
area

2008
2009
2010
2011
2012
2013
2014

7,8,9
7,8,9
7,8,9
7,8,9
7,8,9
8,9
7,8,9

Research periods (days)
10 Jun.
14 May13 Jun.
16 Jun.
21 May30 Jul.
20 May- 18 Aug.
- 25 Jul.
- 18 Aug.
- 30 Aug.
- 28 Jul.
- 2 Oct.
- 25 Jul.

(70)
(73)
(67)
(76)
(69)
(65)
(67)

RB
NM
NM
NM
NM
NM
NM
NM

Research vessels
SSV
SV
YS1, YS2, YS3
YS2, YS3
YS1, YS2
YS1, YS2
YS1, YS2
YS1, YS2
YS1, YS2*1

KS2, (KK1*2)
YS1
YS3
YS1, YS2, YS3
YS1, YS2, YS3
YS1, YS2, YS3, SM 2
YS1, YS2, YS3

ESVSHU, KK1
SHU
HK
HK
SHU
SHU

*1 RB: Research base vessel, SSV: Sighting and sampling vessel, SV, Dedicated sighting vessel, ESV: Scientific echo sounder vessel.

*2

KK1 conducted sighting and echo sounder survey.

Table 2. Sample size of whales collected in each sub-area and year.
Year
2008
2009
2010
2011
2012
2013
2014
Total

Common minke
SA7 SA8 SA9 Total
5
54
59
19
17
7
43
14
14
47
2
49
71
3
74
3
3
0
137 2580242

Bryde's
SA7 SA8 SA9 Total
26
9
15
50
27
23
50
1
49
50
37
4
9
50
16
18
34
18
10
28
13
10
2
25
77
84 126 287

Sei
SA7 SA8 SA9 Total
33
67
100
31
69
100
10
15
75
100
1
29
65
95
34
66
100
10
90
100
21
69
90
11 173 501 685

Table 3. Number of biopsy samples collected between 2008 and 2014.
Year
Blue Fin Sei Bryde's Humpback Right
2008
3
1
1
4
2009
6
9
2010
7
6
2011
4
2
1
2
14
2012
1
1
4
42
1
2013
1
6
2014
16
41
Total
15
3 37
90
9
19
Table 4. Number of identified whales by Photo-ID experiment.
Year
Blue Humpback Right
2008
4
4
2009
7
2010
23
2011
6
5
19
2012
1
10
2
2013
2
11
1
2014
12
1
1
Total
55
27
27

10

Sperm
SA7 SA8 SA9 Total
1
1
2
1
1
3
3
1
1
3
3
1
1
0
5
3
3
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SC/F16/JR4

Figure 1. Research area, sub-area and strata of JARPNII offshore component.

11SC/F16/JR4

Figure 2. Outline of cruise track-lines and sighting positions of large whales made by SSVs during 2008 to 2014
JARPNII surveys (Black line: Whale sampling survey, Green line: Co-operative survey, Red line: Special
monitoring survey).
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SC/F16/JR4

Figure 3. Outline of cruise track-lines and sighting positions of the sampled common minke (●), sei (■),
Bryde’s (◆) and sperm (▲) whales during 2008 to 2014 JARPNII surveys (Black line: Whale sampling
survey, Green line: Co-operative survey, Red line: Special monitoring survey).

13

SC/F16/JR4

Figure 4. On effort cruise tracks made by SSVs during 2008 to 2014 JARPNII surveys.
Red line: NSC mode; Blue line: NSS mode.

14