ᄢಽᄢቇᢎ⢒⑔␩⑼ቇㇱ⎇ⓥ♿ⷐ㧔Res. Bull. Fac. Educ.䋧Welf. Sci., Oita Univ.䋩

51㊄㠦ḓߦ↢ᕷߔࠆࠝࠗࠞࡢ㧔Zacco platypus㧕ߩᒻᘒ⊛․ᓽΣ̆ᕈᚑᾫߣ㠦㓉⿠✢ߦߟ޿ߡ̆
㜞ự⑲᮸㧖࡮ ᄢୖ㋕਽㧖㧖‫ ⷐޣ‬ᣦ‫  ޤ‬㊄㠦ḓߦߪ᷷ᴰ᳓߇ᵹ౉ߒ㧘᳓᷷߇ᐕਛ⚂ 30͠ߦ଻ߚࠇߡ޿
ࠆ႐ᚲ߇޽ࠆ‫↢ߦߎߘޕ‬ᕷߔࠆࠝࠗࠞࡢ㧔Zacco platypus㧕ߣᐕ㑆ࠍㅢߒߡ᳓᷷߇ᄌൻߔࠆᄢಽ⋵ౝߩᴡᎹߦ↢ᕷߔࠆ୘૕ߩᒻᘒቇ⊛․ᓽࠍ⺞ߴߚ‫ޕ‬㓶ᕈ୘૕ߩᕈᚑᾫࠍ␜ߔᇕᆪ⦡߿ㅊᤊߩ⊒⃻߇㧘ᄢಽ⋵ౝߩᴡᎹߢߪ૕㐳
106mm એ਄ߢ⃻ࠇࠆߩߦኻߒ㧘㊄㠦ḓߢߪࠃࠅዊဳ㧔૕㐳 100mm એਅ㧕ߩ୘૕ߦ߽⷗ࠄࠇߚ‫ޕ‬㠦㓉⿠✢㑆㓒ߢߪ᦭ὑߥᏅߪ⷗ࠄࠇߥ߆ߞߚ߇㧘㊄㠦ḓߩ୘૕ߦဋ৻ߥ㓉⿠✢㑆㓒ࠍᜬߟ㠦߇ᄙߊⷰኤߐࠇߚ‫ࠄ߆ߣߎߩࠄࠇߎޕ‬㧘ᥦ߆ߊᄌൻߩዋߥ޿᳓ၞߦ↢ᕷߔࠆࠝࠗࠞࡢߪ㧘ᚑ㐳߇৻ቯߢ㧘ᣧᦼߦᕈᚑ
ᾫࠍ␜ߔߎߣ߇␜ໂߐࠇߚ‫ޕ‬‫  ޤ࠼࡯ࡢ࡯ࠠޣ‬㊄㠦ḓ ᷷ᴰ᳓ ࠝࠗࠞࡢ ᕈᚑᾫ 㠦㓉⿠✢㑆㓒 ᒻᘒቇ⊛․ᓽߪߓ߼ߦ㊄㠦ḓߪᄢಽ⋵↱ᏓᏒḡᏓ㒮↸ߦሽ࿷ߔࠆḓߢ㧘ᄢಽᎹ᳓♽਄ᵹㇱߦ૏⟎ߒ㧘ᄢዊ 5 ᧄߩᴡᎹߣḓᐩ߆ࠄߩḝ᳓߇ᵹ౉ߒߡ޿ࠆ㧔Ꮉ⷏1997㧕‫ߩߘޕ‬ਛߦߪ᷷ᴰ᳓߇ᵹ౉ߒ㧘᳓᷷߇߶߷
30͠ߦ଻ߚࠇߡ޿ࠆ႐ᚲ߽޽ࠆ‫ޕ‬㊄㠦ḓߦߪ㧘ࠝࠗࠞࡢ㧔Zacco platypus㧕ࠍߪߓ߼ࠞࡢࡓ࠷㧘ࠞࡑ࠷ࠞ㧘ࠗ࠻ࡕࡠࠦ㧘ࠕࡉ࡜ࡏ࠹╬߿㧘߹ߚᄖ᧪㝼ߢ޽ࠆ࠹࡜ࡇࠕ㘃㧘ࠣ࠶ࡇ࡯㧘࠲ࠗ࡝ࠢࡃ࡜࠲࠽ࠧߥߤᄙߊߩ᷆᳓㝼߇↢ᕷߒߡ޿ࠆ‫ޕ‬ࠝࠗࠞࡢߪࠦࠗ⑼ࠝࠗࠞࡢዻߦዻߔࠆ᷆᳓㝼ߢ㧘ᚑ㝼ߢో㐳 150mm ߶ߤߦ㆐ߔࠆ‫ޕ‬ᴡᎹߩਛᵹ߆ࠄਅᵹၞ߅ࠃ߮ḓᴧߦ↢ᕷߒ㧘ᣣᧄ߅ࠃ߮ᦺ㞲ඨፉ㧘บḧ㧘ਛ࿖ධ᧲ㇱߦ߆ߌߡᐢߊಽᏓߒߡ޿ࠆ㧔Ꮉ㇊ㇱ߶߆㧘2005㧕‫❥ޕ‬ᱺᦼߪ 5㨪8 ᦬ߢ㧘ߎߩᤨᦼᚑᾫߒߚ㓶ߦߪ㗼⪺ߥᇕᆪ⦡ߣㅊᤊ߇⃻ࠇ㧘ዥ㠈߇િᒛߔࠆ․ᓽࠍᜬߟ㧔᳓ญ࡮ᯫጊ㧘1969㧕‫ޕ‬⎬㛽㝼㘃ߩ㠦ߦ߅ߌࠆ㓉⿠✢ߩ㑆㓒ߪᐕ㦂ᩏቯ߿૕ᚑ㐳ߩᜰᮡߣ⠨߃ࠄࠇߡ޿ࠆ㧔㋈ᧁ㨯Ꮻጊ㧘1990㧕‫ޕ‬㠦㓉⿠✢ߩᒻᚑߪ㧘㙄ߩ㊂㧔㋈ᧁ࡮Ꮻጊ1990㧕߿⾰㧔ᳰ↰߶߆㧘1974㧕㧘᳓᷷㧔⨹
੗1995㧘1996㧕╬㧘㝼ߩ↢ᕷⅣႺࠍ෻ᤋߒߡ޿ࠆߣ⠨߃ࠄࠇߡ޿ࠆ㧔ᵻ㊁㨯ਭ଻㧘1972㧧㋈
ᧁ㨯Ꮻጊ㧘1990㧧⨹੗1995㧘1996㧧⨹੗࡮ဈᧄ㧘1995㧕‫ޕ‬
ᐔᚑ 20 ᐕ 10 ᦬ 31 ᣣฃℂ㧖ߚ߆ߪ߹࡮߭ߢ߈ ᄢಽᄢቇᢎ⢒⑔␩⑼ቇㇱ↢‛ቇᢎቶ㧖㧖߅߅ߊࠄ࡮ߡߟ߿ ᄢಽᄢቇᢎ⢒ቇ⎇ⓥ⑼ᢎ⑼ᢎ⢒ኾ᡹ℂ⑼ᢎ⢒ኾୃ

52㜞ự࡮ᄢୖ৻⥸ߦᚑᾫᐲߣ᳓᷷ߣߩ㑆ߦ⋧㑐߇޽ࠆߣ⠨߃ࠄࠇߡ޿ࠆ‫ߩࡢࠞࠗࠝޕ‬㘺⢒୘૕ߢߪ㧘㜞޿᳓᷷ߢ㘺⢒ߐࠇߚ୘૕ߪ㧘ᚑᾫ߇ଦㅴߐࠇࠆߎߣࠍ␜ߒߡ޿ࠆ㧔૒⮮߶߆㧘1997㧕‫ࡑ࡜ࠢࠨޕ‬ࠬߢߪ㧘㒠ᶏ೨ߩᐜ㝼ᦼߦ߅ߌࠆ᳓᷷਄᣹߇ᕈᚑᾫߩⷐ࿃ߣߒߡ޿ࠆ㧔ਭ଻1965㧕‫ޕ‬ߘߎߢᧄ⎇ⓥߪ㧘ᐕ㑆ࠍㅢߒߡ᳓᷷߇⚂ 30͠ߦ଻ߚࠇߚ᳓ၞ߇ሽ࿷ߔࠆ㧘ᄢಽ⋵ߩ᷷ᴰ࿾ߦ
޽ࠆ㊄㠦ḓߦ↢ᕷߔࠆࠝࠗࠞࡢߣ㧘ᐕ㑆ࠍㅢߒߡ᳓᷷߇਄ਅߔࠆ৻⥸⊛ߥᴡᎹߦ↢ᕷߔࠆ୘૕ߩᒻ⾰㧔ో㐳㧘૕㐳㧘૕㜞㧘⢷㠈࡮⢛㠈࡮⣻㠈࡮ዥ㠈࡮የ㠈ߩ㐳ߐ㧘૕㊀㧘⢈ḩᐲ㧘㠦ߩ㓉⿠✢㑆㓒㧘㓶ᕈ୘૕ߦ߅ߌࠆᇕᆪ⦡ߣㅊᤊ㧕ࠍ⺞ߴ㧘ᥦ߆ߊᄌൻߩዋߥ޿᳓ၞߦ↢ᕷߔࠆࠝࠗࠞࡢߩ․ᓽࠍ᣿ࠄ߆ߦߒߚ‫ޕ‬᧚ᢱߣᣇᴺ
ࠝࠗࠞࡢ㧔Zacco platypus㧕ࠍ㊄㠦ḓߥࠄ߮ߦᄢಽ⋵ౝߩᴡᎹ㧔የ↰Ꮉ㧘ኙ↰Ꮉ㧘ฎᎹ㧕ߢ㧘
2007 ᐕ 10 ᦬߆ࠄ 2008 ᐕ 8 ᦬ߦ߆ߌߡ㧘࠲ࡕ✂╬ࠍ↪޿ߡណ㓸ߒߚ‫ޕ‬᣿⍎ߥᇕᆪ⦡ߣ⓭⿠⁁ߩㅊᤊ߇⃻ࠇߡ޿ࠆ୘૕ࠍᚑᾫ㓶୘૕ߣߒ㧘ߘࠇࠄߩో㐳㧘૕㐳㧘૕㜞㧘⢷㠈࡮⢛㠈࡮⣻㠈࡮ዥ㠈࡮የ㠈ߩ㐳ߐ㧘૕㊀ߦߟ޿ߡ⸘᷹ߒ㧘⢈ḩᐲ㧔૕㊀䋨g䋩䋯૕㐳䋨mm䋩䋳×100㧕ࠍ▚಴ߒߚ㧔૒⮮߶߆㧘㧕‫ޕ‬૕㐳 100㨙㨙એ਄ߩ୘૕ߩ஥✢਄ 14 ⇟⋡ߩ㠦ࠍណขߒ㧘㠦ࠍ㗼ᓸ㏜ߢ᠟ᓇߒߚ‫ޕ‬౮⌀਄ߢ㠦ߩਛᔃ߆ࠄ๟ㄝ߹ߢ㓉⿠✢߇ᐔⴕߦߥߞߡ޿ࠆㇱ૏ࠍㆬ಴ߒ㧘㓉⿠✢㑆㓒ࠍ⸘᷹ߒߚ‫ޕ‬⴫㧝㧚‫ࡢࠞࠗࠝޓ‬ᚑᾫ㓶ߦ߅ߌࠆో㐳㧘૕㊀㧘૕㜞㧘⢷㠈㧘‫ޓޓޓ‬⢛㠈㧘⣻㠈㧘ዥ㠈㧘የ㠈㧘૕㊀ߩ⸘᷹୯㧔mean±S.D.㧕
ో㐳
૕㐳
૕㜞
㊄㠦ḓ
136.9±20.0 113.7±16.3 27.9±6.6ᄢಽ⋵ౝߩᴡᎹ 134.9±9.2 111.0±5.9 27.4±3.8㊄㠦ḓᄢಽ⋵ౝߩᴡᎹ

⣻㠈
17.7±3.918.1±2.0ዥ㠈
39.0±7.640.5±3.2⢷㠈
24.9±4.4
24.6±2.4የ㠈
23.1±4.0
24.1±4.2⢛㠈23.3±4.2
23.1±2.3

㩿㫄㫄㪀

૕㊀ I
22.6±15.6
27.1±6.1

⴫‫ࡢࠞࠗࠝޓ‬㠦ߦ߅ߌࠆ㓉⿠✢㑆㓒‫⸘ߩޓޓޓ‬᷹୯䋨mean±S.D.䋩
㠦㓉⿠✢㑆㓒䋨µm䋩
㊄㠦ḓ䋨n=47䋩

42.8±9.7

ᄢಽ⋵ౝߩᴡᎹ(n=56)40.4±11.0⚿ᨐ㊄㠦ḓ߅ࠃ߮ᄢಽ⋵ౝߩઁߩᴡᎹߢណ㓸ߒߚࠝࠗࠞࡢᚑᾫ㓶୘૕ߩ⸘᷹⚿ᨐࠍ⴫  ߦ␜ߔ‫ޕ‬ో㐳㧘૕㐳㧘૕㜞㧘⢷㠈࡮⢛㠈࡮⣻㠈࡮ዥ㠈࡮የ㠈ߩ㐳ߐ㧘૕㊀ߦߟ޿ߡ㧘㊄㠦ḓߣઁߩᴡᎹߩ୘૕ߣߩ㑆ߦ᦭ᗧߥᏅߪ⹺߼ࠄࠇߥ߆ߞߚ‫ࠄ߇ߥߒ߆ߒޕ‬㧘የ㠈ࠍ㒰ߊ⸘᷹㗄⋡ߢ㊄㠦ḓߩ㊄㠦ḓߦ↢ᕷߔࠆࠝࠗࠞࡢߩᒻᘒ⊛․ᓽ

53୘૕ߩ୯ߩ߫ࠄߟ߈ ᮡḰ஍Ꮕ㧕߇㧘ઁߩᴡᎹߩ୯ࠃࠅᄢ߈޿ߎߣࠍ␜ߒߚ‫ߦ․ޕ‬㧘ో㐳㧘૕㐳㧘૕㊀ߢ⪺ߒߊ㧘ᦨዊߣᦨᄢߩ୯ߪߘࠇߙࠇ 90㧙164mm㧘75㧙137mm㧘6.2㧙56.1g ߣߥࠅ㧘ᄢ߈ߥ᏷߇޽ࠆߎߣࠍ␜ߒߚ‫ߩઁޕ‬ᴡᎹߢߪ㧘૕㐳 100mm એ਄ߢᇕᆪ⦡ߣㅊᤊ߇⊒⃻ߔࠆߩߦኻߒ㧔࿑㧝A㧕㧘㊄㠦ḓߢߪ㧘ዊဳߩ୘૕ߢ߽ߔߢߦᚑᾫߒߡ޿ࠆߎߣࠍ␜ߒߚ㧔࿑㧝B㧘C㧕‫ޕ‬㊄㠦ḓߩ୘૕ߢߪ㧘⸘᷹ߒߚ 30 ୘૕ਛ 9 ୘૕ 30㧑 ߇ 100mm એਅߩ૕㐳ߢ޽ࠅ㧘૕㊀߇ 16gએਅߩ୘૕߇ 33㧑ࠍභ߼ߚ‫৻ޕ‬ᣇ㧘ઁߩᴡᎹߩ୘૕ߢߪోߡ 100mm એ਄㧘16g એ਄ߢ޽ߞߚ‫ޕ‬⢈ḩᐲߪ㊄㠦ḓߢ 15.1㧔±4.4㧕㧘ઁߩᴡᎹߢ 17.7㧔±2.1㧕ߢ㧘᦭ᗧߥᏅߪ⹺߼ࠄࠇߥ߆ߞߚ‫ޕ‬ ㊄㠦ḓ߅ࠃ߮ᄢಽ⋵ౝߩઁߩᴡᎹߢណ㓸ߒߚࠝࠗࠞࡢߩ㠦ߦ߅ߌࠆ㓉⿠✢㑆㓒ߩ⸘᷹⚿ᨐࠍ⴫㧞ߦ␜ߔ‫ޕ‬㊄㠦ḓߣઁߩᴡᎹߩ୘૕ߣߩ㑆ߢ㧘㓉⿠✢㑆㓒ߩ୯ߦ᦭ᗧߥᏅߪ⹺߼ࠄࠇߥ߆ߞ
ߚ‫ࠄ߇ߥߒ߆ߒޕ‬㧘ઁߩᴡᎹߩ୘૕ߩ㠦ߢኒߥㇱಽߣ⇹ߥㇱಽ߇ⷰኤߐࠇࠆߩߦኻߒ㧘㊄㠦ḓߩ୘૕ߢߪ㓉⿠✢㑆㓒߇ဋ৻ߦߥߞߡ޿ࠆߩ߇ⷰኤߐࠇߚ㧔࿑㧞㧕‫ޕ‬࿑㧝  ࠝࠗࠞࡢᚑᾫ㓶ߩ౮⌀㧚A㧦㊄㠦ḓߢណ㓸ߐࠇߚ୘૕㧘B㧦ߘߩ㗡ㇱߩ᜛ᄢ౮⌀㧔⍫ශ㧧ㅊᤊ㧕㧘ABC㧦ᄢಽ⋵ౝߩᴡᎹߢណ㓸ߐࠇߚ୘૕㧚CA100Ǵm

B100Ǵm࿑㧞 ࠝࠗࠞࡢ㠦ߩ㗼ᓸ㏜౮⌀㧚A㧦㊄㠦ḓߢណ㓸ߐࠇߚ୘૕㧘B㧦ᄢಽ⋵ౝߩᴡᎹߢណ㓸ߐࠇߚ୘૕㧚⊕✢਄ߩ㓉⿠✢㑆㓒ࠍ⸘᷹㧚

54㜞ự࡮ᄢୖ⠨ኤᧄ⎇ⓥߪ㧘ᥦ߆ߊᄌൻߩዋߥ޿᳓ၞࠍᜬߟ㊄㠦ḓߦ↢ᕷߔࠆࠝࠗࠞࡢߦ㧘㓶ᕈ୘૕ߦ߅ߌࠆᣧᦼߩᕈᚑᾫ߿ᚑ㐳ߩ቟ቯᕈ㧔ဋ৻ߥ㠦㓉⿠✢㑆㓒㧕ߣ޿߁․⦡߇޽ࠆߎߣࠍ᣿ࠄ߆ߦߒߚ‫ޕ‬৻⥸ߦࠝࠗࠞࡢߩ㓶ᕈ୘૕ߪ㧘ᚑᾫߔࠆߣ૕஥ߦ⿒߿㕍✛⦡ࠍ๒ߔࠆᇕᆪ⦡߇಴⃻ߒ㧘㗡ㇱ㧘ዥ㠈㧘૕஥╬߳ㅊᤊ߇↢ߓ㧘ዥ㠈߇⪺ߒߊિ㐳ߔࠆߣ޿ߞߚ․ᓽ߇⍮ࠄࠇߡ޿ࠆ㧔Ꮉ㇊ㇱ߶߆㧘
2005㧕‫ޕ‬㓶ߪ㧘㓽ࠃࠅ߽ᄢဳߣߥࠅ 3 ᐕߢᚑᾫߔࠆߣ⠨߃ࠄࠇߡ޿ࠆ㧔૒⮮߶߆㧘1997㧕‫ޕ‬㊁ᄖߢ↢ᕷⅣႺߩ᳓᷷ߩ਄᣹㧔20͠એ਄㧕߇㧘㓶ߩᇕᆪ⦡ߩ⊒⃻ࠍ⺃ᒁߔࠆߎߣࠍ␜ߔ⎇ⓥ߇޽ࠆ㧔૒⮮߶߆㧘1996㧕‫ߪߣߎߩߎޕ‬㘺⢒ਅߢ߽⏕߆߼ࠄࠇ㧘100mm એ਄ߩ୘૕ߢ㧘ᚑᾫ߇⿠ߎࠆ
ߎߣ߇␜ߐࠇߚ㧔૒⮮߶߆㧘1997㧕‫⎇ᧄޕ‬ⓥߩ⚿ᨐߪ㧘ᇕᆪ⦡߿ㅊᤊߩ⊒⃻߇ᄢಽ⋵ౝߩᴡᎹߩ୘૕ߢߪ૕㐳 106mm એ਄ߢ⃻ࠇࠆߩߦኻߒ㧘㊄㠦ḓߩ୘૕ߢߪࠃࠅዊဳ㧔૕㐳 100mm એਅ㧕ߩ߽ߩߦ߽⷗ࠄࠇࠆߎߣࠍ␜ߒߚ‫ߪߣߎߩߎޕ‬㧘㊄㠦ḓߦᐕ㑆ࠍㅢߒߡ⚂ 30͠ߩ᷷ᥦߥ᳓
ၞ߇ሽ࿷ߔࠆߎߣߦࠃࠆᓇ㗀ࠍ␜ߒߡ޿ࠆߩߢߪߥ޿߆ߣ⠨߃ࠄࠇࠆ‫৻ޕ‬ᣇߢ㧘100mm ࠍ⿥߃ࠆᚑᾫ୘૕߽ሽ࿷ߔࠆߎߣ߆ࠄ㧘ᵹ಴ߔࠆᴡᎹ߆ࠄߩ୘૕ߩ⒖േ߽ផ᷹ߐࠇࠆ‫ޕ‬৻⥸ߦ㠦㓉⿠✢㑆㓒ߪ㧘ߘߩ㝼ߩ↢ᕷߒߡ޿ߚⅣႺࠍ෻ᤋߒ㧘↢ᕷⅣႺࠍផ᷹ߔࠆ᦭ജߥᚻᲑߣ⠨߃ࠄࠇߡ޿ࠆ㧔⨹੗1995㧘1996㧧⨹੗࡮ဈᧄ㧘1995㧕‫ߪߢ࡙ࠕޕ‬㧘ᄤὼߩ୘૕ߢߪ㓉⿠✢㑆㓒߇ᚑ㐳ㆊ⒟ߢᄌൻߔࠆߩߦኻߒߡ㧘㙃ᱺߩ႐วߢߪ߶ߣࠎߤᄌൻߒߥ޿ߎߣ߇᣿ࠄ߆ߦߥߞߡ޿ࠆ㧔ᳯ೽߶߆㧘2005㧕‫ߚ߹ޕ‬㧘ࡑ࠳ࠗߩ⒩㝼ߩ㠦ߦೞ߹ࠇࠆ㓉⿠✢ᢙߪ㧘⇣ߥࠆ᳓᷷ߢ㘺⢒ߐࠇߚታ㛎ߢߪ㧘᳓᷷ߩ਄᣹ߣߣ߽ߦ৻ᣣ޽ߚࠅߩ㓉⿠✢ᢙ߇Ⴧടߒ㧘᳓᷷ߣᒻᚑᧄᢙߣ㑆ߦ⋧㑐߇޽ࠆߎߣ߇⍮ࠄࠇߡ޿ࠆ㧔⨹੗㧘1996㧕‫ޕ‬㊄㠦ḓߩࠝࠗࠞࡢߪ㧘ᐕ㑆ࠍㅢߒߡ᳓᷷߇⚂ 30͠ߦ଻ߚࠇࠆ᳓ၞ߇ሽ࿷ߔࠆߚ߼㧘㙄㊂߿ઍ⻢ߥߤߩ㕙ߢ቟ቯߒߚⅣႺߦ↢ᕷߒߡ޿ࠆߣ⠨߃ࠄࠇࠆ‫⎇ᧄޕ‬ⓥߢ᣿ࠄ߆ߦߒߚਔ᳓ၞߩ୘૕㑆ߩ㠦㓉⿠✢㑆㓒ߦ߅ߌࠆ㆑޿ߪ㧘᳓᷷ߩᓇ㗀ࠍ෻ᤋߒߡ޿ࠆߣᕁࠊࠇ㧘㊄㠦ḓߩࠝࠗࠞࡢߢߪᥦ߆ߊᄌൻߩዋߥ޿᳓ၞߢߩᚑ㐳ࠍ␜ໂߒߡ޿ࠆ‫ޕ‬ ࠝࠗࠞࡢߩ♖Ꮍߪ㧘᣿⍎ߥᇕᆪ⦡ߣㅊᤊߩ⊒⃻ߦ઻ߞߡ⊒㆐ߔࠆߎߣ߇⍮ࠄࠇߡ޿ࠆ㧔૒⮮߶߆㧘1997㧕‫ࠄ߇ߥߒ߆ߒޕ‬㧘㊄㠦ḓߢ⷗ࠄࠇࠆዊဳߩᚑᾫ୘૕ߦߟ޿ߡߩౝㇱᒻᘒߦ㑐ߔࠆ࠺࡯࠲ߪߥߊ㧘㗼ᓸ㏜࡟ࡌ࡞ߢߩ⹦⚦ߥ⸃ᨆ߇ᔅⷐߢ޽ࠆ‫ޕ‬ᒁ↪ᢥ₂
Ꮉ⷏ඳ(1997)㧦㊄㠦ḓߩ᳓෼ᡰ㧚ḡᏓ㒮↸㧘p1-25㧚
Ꮉ㇊ㇱᶈ຦࡮᳓㊁ାᒾ࡮⚦⼱๺ᶏ(2005)㧦ᣣᧄߩ᷆᳓㝼㧔ᡷ⸓ 㧕㧚ጊߣᷧ⼱␠㧘pp㧚244㧙249㧚
᳓ญᙗ຦࡮ᯫጊ⟵ᄦ(1969)㧦ࠝࠗࠞࡢ㧘Zacco platypus (Temminck and Schlegel)ߩ❥ᱺ㧙Σ㧚⤦㠈ߦ߅ߌࠆᕈᓽߣᚑᾫ㧚㝼㘃ቇ㔀⹹㧘16 Ꮞ㧘1 ภ㧘17-23㧚㋈ᧁବ຦࡮Ꮻጊ㓷⑲(1990)㧦⇣ߥࠆ៨㙄᧦ઙਅߢ㘺⢒ߐࠇߚࡌ࠾ࠩࠤᐜ㝼ߩ㠦ᒻᚑ㧚ർᶏ㆏ߐߌ࡮
߹ߔ߰ൻ႐⎇ⓥႎ๔㧘44 Ꮞ㧘23-28㧚ᳰ↰ᒎ↢࡮የፒਭ㓶࡮቟↰⑲᣿(1974)㧦ࠠࡦ࡚ࠡߩ㠦ᚑ㐳ߦ෸߷ߔ⛎㙄㊂ߩᓇ㗀㧚Bulletin of theJapanese Society of Scientific Fisheries㧘40 Ꮞ㧘9 ภ㧘859-868㧚⨹੗ୃ੫(1995)㧦ࡑ࠳ࠗ⎬⚵❱ౝߩ❋ᒻᚑߣⅣႺ᳓᷷㧚J. Adv. Mar. Sci. Tech. Soci. Vol.1. No.1.
31-37㧚
⨹੗ୃ੫(1996)㧦ࡑ࠳ࠗ⒩㝼ᦼߩ㘺⢒᳓᷷ߣ㠦ߩ㓉⿠✢ᒻᚑߣߩ㑐ଥ㧚ᣣᧄ᳓↥ቇળ⹹㧘 62 Ꮞ㧘2ภ㧘213-216㧚

㊄㠦ḓߦ↢ᕷߔࠆࠝࠗࠞࡢߩᒻᘒ⊛․ᓽ

55⨹੗ୃ੫࡮ဈᧄਗ਼(1995㧕
㧦ࡑ࠳ࠗ㠦ߩ㓉⿠✢ᒻᚑߦ෸߷ߔ᳓᷷ߩᓇ㗀㧚ᣣᧄ᳓↥ቇળ⹹㧘 61 Ꮞ㧘3ภ㧘316-319㧚
ᵻ㊁ඳ೑࡮ਭ଻༑⸘(1972)㧦ࠞࡢ࠴ࡉ࠽ߩ㠦ߩ㓉⿠✢ᒻᚑߦߟ޿ߡ㧚ㄭ⇰ᄢቇㄘቇㇱ♿ⷐ㧘╙ 5 ภ㧘49-59㧚૒⮮ᢕᒾ࡮↰ਛ⧷᮸࡮ᚻፉජ㉿(1997)㧦ࠝࠗࠞࡢჇᱺߦ㑐ߔࠆ⎇ⓥ̆Υ㧔᳓᷷ߣᚑᾫଦㅴ㧕㧚⟲㚍⋵᳓↥⹜㛎႐⎇ⓥႎ๔㧘╙ 3 ภ㧘 25-27㧚ਭ଻㆐㇢(1965)㧦ࠨࠢ࡜ࡑࠬᐜ㝼ߩᄌᘒߦ෸߷ߔ㜞᳓᷷ߩᓇ㗀㧚ർᶏ㆏ߐߌ࡮߹ߔ߰ൻ႐⎇ⓥႎ๔㧘╙ 19 ภ㧘25-32㧚૒⮮ᢕᒾ࡮ᣂ੗⡸࡮ᚻፉජ㉿(1996)㧦ࠝࠗࠞࡢߩჇᱺߦ㑐ߔࠆ⎇ⓥ̆Τ㧔᳓᷷ߣ↥ෆⴕേ㧕㧚⟲㚍⋵᳓↥⹜㛎႐⎇ⓥႎ๔㧘╙ 2 ภ㧘39-42㧚
ᳯ೽ⷡ࡮᳗የ౏ჽ࡮ᄥ↰ඳశ(2005)㧦㞜ߩ߁ࠈߎߦೞ߹ࠇߚ㓉⿠✢ߩᒻᚑ․ᕈ㧚ᣣᧄᯏ᪾ቇળ⻠Ṷ⺰ᢥ㓸㧘No.058-1㧘91-92㧚

Morphological Characteristics of a Cyprinid, Zacco platypus,
in the Lake Kinrin ΣMaturation and Scale Circuli
TAKAHAMA, Hideki and OKURA, Tetsuya

Abstract
Morphological characteristics were investigated in Zacco platypus
collected from the Lake Kinrin where was kept at about 30͠ flowing hot
spring water, compared from the individuals from the other rivers in theOita Prefecture. Mature males from the Lake Kinrin were seen at lessthan 100mm in body length. On the other hand, mature males from theother rivers were recognized at more than 106mm in body length.
Distance between circuli was constant in some cyprinids from the LakeKinrin. It suggested that individuals growing up at warm water conditionin the Lake Kinrin were shown early maturation.
䇼Key words‫  ޤ‬The Lake Kinrin, Hot spring water,
Maturation,

Scale circuli,

Zacco platypus,Morphological characteristics