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南太平洋海域調査研究報告 No.56（2015年3月）
OCCASIONAL PAPERS No.56（March 2015）ᒇஂᓥ࡜✀Ꮚᓥࡢ㨶㢮┦ㄪᰝᑠᯞᆂኴ࣭ྜྷ⏣᭸ᘯ࣭⏣௦㒓ᅜ࣭ᮏᮧᾈஅ

Ichthyofaunal Surveys in Yakushima and Tanegashima Islands
KOEDA Keita, YOSHIDA Tomohiro, TASHIRO Satokuni and MOTOMURA Hiroyuki㮵ඣᓥ኱Ꮫ⥲ྜ◊✲༤≀㤋
Kagoshima University Museumせ᪨2014 ᖺ 9 ᭶ 16 ᪥࠿ࡽ 22 ᪥࡟࠿ࡅ࡚✀Ꮚᓥࠊ2014 ᖺ 12 ᭶ 25 ᪥࠿ࡽ 28 ᪥࡟࠿ࡅ࡚ᒇஂᓥ࡟࠾࠸࡚₯Ỉࠊ㔮ࡾ࡟ࡼࡿᶆᮏ᥇㞟࡜ᕷሙ࡛ࡢᶆᮏ཰㞟ࢆేࡏࡓ㨶㢮┦ㄪᰝࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝࠊ✀Ꮚᓥ࠿ࡽ 192 ✀ 429 ಶయࠊᒇஂᓥ࠿ࡽ 54 ✀ 82 ಶయࡀ᥇㞟ࡉࢀࡓࠋࡇࡢ࠺ࡕࠊ✀Ꮚᓥ࠿ࡽ᥇㞟ࡉࢀࡓ࣑࢘ࣄࢦ࢖ᒓࡢ 1 ✀ࡣ᪥ᮏᮍグ㘓✀ࠊᒇஂᓥ࡛᥇㞟ࡉࢀࡓ࢔ࢦ࢔࣐ࢲ࢖ᒓࡢ 1 ✀ࡣࠊ᪤▱ࡢྠᒓ௚✀࡟ࡣྠᐃ࡛ࡁ࡞࠸ࡇ࡜࠿ࡽᮍグ㍕✀㸦᪂✀㸧࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋࡣࡌࡵ࡟㮵ඣᓥ኱Ꮫ⥲ྜ◊✲༤≀㤋ࡀ୺ᑟࡍࡿ㏆ᖺࡢ⌰⌫ิᓥ࡟࠾ࡅࡿ㨶㢮Ꮫ⾡ㄪᰝ࡟ࡼࡗ࡚ࠊྠ࿘㎶ᾏᇦࡢ㨶㢮ከᵝᛶ࡜㨶㢮┦ࡢ≉ᚩࡀゎ᫂ࡉࢀࡘࡘ࠶ࡿࠋ༡໭࡟㛗࠸⌰⌫ิᓥ࡛ࡣᙉ኱࡞㯮₻࡜ࡑࢀࢆྲྀࡾᕳࡃ」㞧࡞ᾏὶࡀᓥᕋࡈ࡜࡟ᅛ᭷ࡢ㨶㢮┦ࢆ๰ࡾࡔࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗ࡚ࡁࡓࠋࡇࢀࡲ࡛ᾏỈ㨶࡟࠾ࡅࡿ⏕≀ᆅ⌮ቃ⏺⥺ࡣࠊῐỈ㨶ࡸከࡃࡢ㝣ୖ⏕≀࡜ྠᵝ࡟ࢺ࢝ࣛิᓥ࡟఩⨨ࡍࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡓࡀࠊ᭱㏆ࡢㄪᰝࡢ⤖ᯝ࠿ࡽࠊྠቃ⏺⥺ࡣᒇஂᓥ࡜◲㯤ᓥ㸩➉ᓥ㸩✀Ꮚᓥࡢ㛫࡟఩⨨ࡍࡿྍ⬟ᛶࡀ㧗࠸ࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸦ᮏᮧ 2013, 2014, 2015㸧ࠋ኱㝮ㅖᓥෆ࡟఩⨨ࡍࡿቃ⏺⥺ࡢᏑᅾ࡜఩⨨ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ࠊ௒ᅇࡣᒇஂᓥ࡜✀Ꮚᓥ࡟࠾ࡅࡿ㨶㢮ࡢ㏣ຍㄪᰝࢆ⾜ࡗࡓࠋ42
KOEDA Keita, YOSHIDA Tomohiro, TASHIRO Satokuni and MOTOMURA Hiroyuki᪉ἲ2014 ᖺ 9 ᭶ 16 ᪥࠿ࡽ 22 ᪥࡟࠿ࡅ࡚✀Ꮚᓥࠊ2014 ᖺ 12 ᭶ 25 ᪥࠿ࡽ 28 ᪥࡟࠿ࡅ࡚ᒇஂᓥ࡟࠾࠸࡚ࡑࢀࡒࢀࡢᓥࡢ㨶㢮┦ㄪᰝࢆ⾜ࡗࡓࠋᒇஂᓥ࡛ࡣ₯Ỉㄪᰝࡢࡳࢆ⾜࠸ࠊ✀Ꮚᓥ࡛㔮⋓ࡋࡓಶయࡸᕷሙ࡛㉎ධࡋࡓಶయࡶేࡏ࡚ᶆᮏ࡜ࡋࡓࠋ✀Ꮚᓥ࡛ࡣࠊࡇࢀࡲ࡛࡟㨶㢮┦ࢆ㔜Ⅼⓗ࡟ㄪᰝࡋ࡚ࡁࡓᓥࡢ໭㒊ࡔࡅ࡛࡞ࡃࠊᓥࡢ
୰㒊㸦୰✀Ꮚ⏫∾ᕝ⁺ Ἀ 30‫މ‬1ࠊ‫(މ‬㸧࡜༡㒊㸦༡✀Ꮚ⏫➉ᓮ⁺ Ἀ 30‫މ‬1ࠊ‫(މ‬㸧ࢆ᪂ࡓ࡞ㄪᰝᆅⅬ࡜ࡋ࡚㑅ᐃࡋࠊࡇࢀࡽࡢᆅⅬ࡟࠾࠸࡚㨶㢮ࡢ᥇㞟ࢆ࠾ࡇ࡞ࡗࡓࠋࡇࢀࡣ␗࡞ࡿ⎔ቃ࡛᥇㞟ࡍࡿࡇ࡜࡛ࠊࡼࡾከᵝ࡞✀ࢆᚓࡿࡓࡵ࡛࠶ࡿࠋᕷሙㄪᰝ࡟࠾࠸࡚ࡶࠊ୰✀Ꮚ⏫ࡢ⇃㔝⁺ 㸦30‫މ‬1ࠊ‫(މ‬㸧ࡸ༡✀Ꮚ⏫ࡢᓥ㛫 㸦30‫މ‬1ࠊ‫(މ‬㸧࡞࡝୰༡㒊ࡢ⁺࡟✚ᴟⓗ࡟㊊ࢆ㐠ࡧࠊ㨶ࢆ཰㞟ࡋࡓࠋᒇஂᓥ࡛ࡣࠊᓥࡢ໭す࡟఩⨨ࡍࡿ 2 ࣧᡤࢆㄪᰝᆅⅬ࡜ࡋ࡚㑅ᐃࡋࠊࢫࢡ࣮ࣂ࡟ࡼࡗ࡚㨶㢮ࡢ᥇㞟ࢆ࠾ࡇ࡞ࡗࡓࠋ₯Ỉㄪᰝ࡟ࡼࡗ࡚ᚓࡓಶయࢆ࢚࢔࣮ࣞࢩ࡛ࣙࣥ⏕࠿ࡋࡓࡲࡲࠊᕷሙㄪᰝ࠾ࡼࡧ㔮ࡾ࡟ࡼࡗ࡚ᚓࡓಶయࢆࢡ࣮࣮ࣛ࣎ࢵࢡࢫ࡛ị෭ࡋ࡚ᐟ࡟ᣢࡕᖐࡾࠊᶆᮏⓏ㘓ࠊ✀ྠᐃࠊ
DNA ⏝➽⫗ษ∦ࡢ᥇ྲྀࠊᅛᐃ࡜࠸ࡗࡓసᴗ࡟ຍ࠼ࠊᒎ㫅࡜ᶆᮏ෗┿ࡢ᧜ᙳࢆ㐺ᐅ࠾ࡇ࡞ࡗࡓࠋ࡞࠾ࠊ⌧ᆅ࡛ࡢᶆᮏฎ⌮ࡸ෗┿ࡢ᧜ᙳࡀ୙ྍ⬟࡞࡯࡝኱ᆺࡢಶయ࡟㛵ࡋ࡚ࡣࠊ
኱Ꮫ࡟ᦙ㏦ࡋࡓᚋ࡟ྠᵝࡢฎ⌮ࢆ࠾ࡇ࡞ࡗࡓࠋ⤖ᯝ✀Ꮚᓥࡢ୰㒊࠾ࡼࡧ༡㒊࡟࠾ࡅࡿ 5 ᪥㛫ࡢ₯Ỉㄪᰝ࡟ࡼࡾ 97 ✀ 211 ಶయࡢᶆᮏࢆ᥇㞟ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋࡇࡢ࠺ࡕࠊࣇࢳࢻࣜࢱࢼࣂࢱ࢘࢜ Acanthoplesiops psilogasterࠊ࢝ࢡࣞࢸࣥࢪࢡࢲ࢖ Apogonichthyoides timorensisࠊࢶ࣐ࢢࣟࣁࢱ࣏ࣥ Pempheris japonicaࠊ࣍ࢯ࢘ࣂ࢘࢜ Pherallodus indicusࠊ࢔ࣛ࢖ࢯࢥࢣࢠ࣏ࣥ Neoclinus okazakiiࠊ࢔࢜ࢧࣁࢠ
Brachaluteres ulvarumࠊ࢖ࢺࣄࢤࣔࢪࣕࣁࢮ Barbuligobius boehlkeiࠊࣜࣗ࢘࢟ࣗ࢘࢖ࢱ
ࢳ࢘࢜ Alionematichthys riukiuensisࠊࢶ࣐ࢪࣟࣔࣥ࢞ࣛ Sufflamen chrysopterum ࡞࡝ࠊࡇࢀࡲ࡛ᓥ໭㒊࡛ࡣ᥇㞟ࡉࢀ࡚ࡇ࡞࠿ࡗࡓ✀ࢆᩘከࡃᚓࡿࡇ࡜ࡀ࡛ࡁࡓࠋࡲࡓࠊ」ᩘ
ᅇ࠾ࡇ࡞ࡗࡓᓥ໭㒊࡟࠾ࡅࡿ₯Ỉㄪᰝ࡛ࡶࠊࡇࢀࡲ࡛࡟᥇㞟ࡉࢀ࡚࠸࡞࠿ࡗࡓ࣒ࣛࢧ
࣓ࣔࣥ࢞ࣛ Rhinecanthus aculeatus ࡸࢡࣛ࢝ࢣࣔࣥ࢞ࣛ Rhinecanthus verrucosus ࡜࠸ࡗࡓ✀ࡶᚓࡽࢀࡓࠋ㔮ࡾ࡟ࡼࡿ᥇㞟࡛ࡣࠊ23 ✀ 65 ಶయࡀ᥇㞟ࡉࢀࠊࡇࡢ࠺ࡕࢢࣝࢡ࣐ Rastrelliger
kanagurta ࡣศᕸࡢ໭㝈ࢆ᭦᪂ࡍࡿᶆᮏ࡜࡞ࡗࡓࠋ
ᕷሙ࡟࠾ࡅࡿㄪᰝ࡛ࡣࠊ࢘ࢳ࣡ࢨ࣓ Platyrhina sinensisࠊ࢜࢔࣒࢝ࣟ Decapterus tablࠊ࣐ࢲࣛࣁࢼࢲ࢖ Holanthias borboniusࠊ࣍ࢩࢦࣥ࣋ Paracirrhites forsteriࠊࣄ࣓ࢲ࢖
Pristipomoides sieboldiiࠊ࢔࢜ࢲ࢖ Paracaesio caeruleaࠊ࢜ࢽࣄࣛ࢔ࢪ Caranx papuensis࡞࡝ࠊࡇࢀࡲ࡛໭㒊ࡢすஅ⾲㨶㢮ᕷሙ࡛ࡣࡳࡽࢀ࡞࠿ࡗࡓ✀ࢆ཰㞟ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ

43
Ichthyofaunal Surveys in Yakushima and Tanegashima Islands࡞࠿࡛ࡶࠊ2 ಶయࡀᚓࡽࢀࡓ࣑࢘ࣄࢦ࢖ᒓࡢ 1 ✀ࡣࠊ᪥ᮏᮍグ㘓✀࡛࠶ࡿ࡜࡜ࡶ࡟ࠊ
ศᕸࡢ໭㝈ࢆ᭦᪂ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋᮏ✀ࡣࠊࡇࢀࡲ࡛ࢫ࣐ࢺࣛᓥࠊࢫࣛ࢘
࢙ࢩᓥࠊࣝࢯࣥᓥ࡛ࡣᶆᮏࡢ᥇㞟౛ࡀ࠶ࡿࡶࡢࡢࠊ࠸ࡎࢀࡶಶయᩘࡀᑡ࡞࠸ࠋࡼࡾ
༡᪉࡟఩⨨ࡍࡿ⌰⌫ิᓥࡢᓥᕋ⩌࠿ࡽグ㘓ࡢ࡞࠸ᮏ✀ࡀࠊ✀Ꮚᓥ࡟࠾࠸࡚᥇㞟ࡉࢀࡓࡇ࡜ࡣࠊᮏㄪᰝ࡟࠾ࡅࡿ≉➹ࡍ࡭ࡁ⤖ᯝ࡛࠶ࡿ࡜࠸࠼ࡿࠋ
ᒇஂᓥ࡛ࡣ 3 ᪥㛫ࡢࢫࢡ࣮ࣂࢆ⏝࠸ࡓ᥇㞟࡟ࡼࡾ 54 ✀ 82 ಶయࡢᶆᮏࢆᚓࡿࡇ࡜ࡀ
ฟ᮶ࡓࠋࡇࢀࡲ࡛ MOTOMURA et al.㸦2010㸧ࡣᶆᮏ࡜Ỉ୰෗┿࡟ᇶ࡙ࡁ 958 ✀ࢆሗ࿌ࡋࠊ
ࡑࡢᚋ MOTOMURA and AIZAWA㸦2011㸧࡞࡝ࠊ」ᩘࡢሗ࿌ࡀ┦ḟࡂࠊ⌧ᅾࡲ࡛࡟ᒇஂᓥ
࠿ࡽ࠾ࡼࡑ 1,000 ✀ࡢ㨶㢮ࡢศᕸࡀ☜ㄆࡉࢀ࡚࠸ࡿࠋ௒ᅇࡢㄪᰝ࡛᥇㞟ࡉࢀࡓᶆᮏࡢ
࠺ࡕࠊ࢔ࢦ࢔࣐ࢲ࢖⛉࢔ࢦ࢔࣐ࢲ࢖ᒓࡢ 1 ✀㸦ᅗ 1㸧ࡣࠊ⫼㫅 11 Ჲ 14 ㌾᮲ࠊ⮌㫅 2
Ჲ 14 ㌾᮲ࠊ⦪ิ㫣 63㹼68 ᯛࠊ⬚㫅 18㹼19 ㌾᮲ࠊ㢌㒊⫼㠃ࡢ࡯ࡰ඲ᇦ࡟ᚤᑠ࡞Ꮝჾิࡀከᩘᩓᅾࡋ࡚࠸ࡿࡇ࡜ࠊ࠾ࡼࡧయഃࡀ㯤Ⰽ࠿ࡽ〓Ⰽ࡛యഃ୰ኸ࡟ኴ࠸㯮Ⰽᖏࡀධࡿࡇ࡜࡞࡝ࡢ≉ᚩࡢ⤌ࡳྜࢃࡏࡀࠊ᪤▱✀࡜␗࡞ࡿࡇ࡜࠿ࡽᮍグ㍕✀࡛࠶ࡿྍ⬟ᛶࡀ㧗࠸ࠋྠ✀࡜ᛮࢃࢀࡿᶆᮏࡀ✀Ꮚᓥᾆ⏣Ἀ࠿ࡽࡶ᥇㞟ࡉࢀ࡚࠾ࡾ⌧ᅾ◊✲ࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋ

ᅗ 1 ᒇஂᓥ࠿ࡽ᥇㞟ࡉࢀࡓ࢔ࢦ࢔࣐ࢲ࢖⛉࢔ࢦ࢔࣐ࢲ࢖ᒓࡢ 1 ✀44
KOEDA Keita, YOSHIDA Tomohiro, TASHIRO Satokuni and MOTOMURA Hiroyukiࢸࣥࢪࢡࢲ࢖⛉ࡢ࢘ࢫࢪ࣐࢖ࢩࣔࢳ Ostorhinchus angustatus ࡜࣑ࣖࢸࣥࢪࢡࢲ࢖Apogon semiornatusࠊ࣋ࣛ⛉ࡢࢶ࢟ࣀ࣡࢖ࢺࣄ࢟࣋ࣛ Cirrhilabrus lunatus ࡜࢜ࣁࢢࣟ࣋
ࣛᒓࡢ 1 ✀ Pteragogus enneacanthus ࡣࠊࡇࢀࡲ࡛Ỉ୰෗┿ࡢࡳグ㘓ࡉࢀ࡚࠾ࡾᶆᮏ࡟
ᇶ࡙ࡃึグ㘓࡜࡞ࡗࡓࠋࣚ࢘ࢪ࢘࢜⛉ࣄ࣓ࢺࢤ࣑࢘ࣖࢵࢥ Halicampus spinirostris ࡣࠊᯇ἟ࡽ㸦2013㸧࡟ࡼࡗ࡚ึࡵ࡚᪥ᮏ࠿ࡽグ㘓ࡉࢀࡓ⛥✀࡛࠶ࡿࠋ᪥ᮏ࠿ࡽࡣࠊࡇࢀࡲ
࡛࡟៞␃ၥᓥ࡜୚ㄽᓥ࠿ࡽࡑࢀࡒࢀ 1 ಶయࡎࡘᮍᡂ㨶ࡀ᥇㞟ࡉࢀ࡚࠸ࡿࡢࡳ࡛࠶ࡾࠊᒇஂᓥ⏘ࡢᶆᮏࡣᮏ✀ࡢ໭㝈グ㘓࡛࠶ࡿ࡜࡜ࡶ࡟ 3 ౛┠ࡢグ㘓࡜࡞ࡗࡓࠋࡉࡽ࡟ࠊᮏㄪᰝ࡛᥇㞟ࡉࢀࡓᶆᮏࡣࠊ
ᶆ‽య㛗 119.6 mm ࡜ࡇࢀࡲ࡛ࡢ 2 ౛࡜ẚ㍑ࡋ࡚኱ࡁࡃࠊ
㢌㒊ࡢᲲࡀࡼࡃⓎ㐩ࡋ࡚࠸ࡿࡇ࡜࠿ࡽᡂ㨶࡛࠶ࡿ࡜ุ᩿࡛ࡁࡓࠋࢸࣥࢪࢡࢲ࢖⛉ࢡࢲࣜ࣎࢘ࢬࢠࢫࣔࢻ࢟ Pseudamiops gracilicauda ࡣࠊࡇࢀࡲ࡛዆⨾኱ᓥ௨༡࠿ࡽᶆᮏࡀ
ᚓࡽࢀ࡚࠸ࡓࡀࠊᮏㄪᰝ࡛ᚓࡽࢀࡓ 1 ಶయ࡟ࡼࡗ࡚ࠊᚑ᮶ࡢሗ࿌ࡼࡾ໭㝈ࢆ᭦᪂ࡍࡿࡇ࡜࡜࡞ࡗࡓࠋ௨ୖࡢࡼ࠺࡟ࠊ✀Ꮚᓥࠊᒇஂᓥ࡛ࡢ₯Ỉసᴗࢆక࠺ᶆᮏ᥇㞟࡟ࡼࡾࠊࡇࢀࡲ࡛୧ᓥ࡛᥇㞟ࡉࢀ࡚ࡇ࡞࠿ࡗࡓ㨶✀ࡀᩘከࡃ᥇㞟ࡉࢀࡓࡇ࡜࡟ຍ࠼ࠊᮍグ㍕✀ࡸ᪥ᮏᮍグ㘓ࡢ✀ࢆ᥇㞟ࡍࡿࡇ࡜ࡀฟ᮶ࡓࠋᘬ⏝ᩥ⊩ᯇ἟⍞ᶞ࣭℩⬟ ᏹ࣭ᮏᮧᾈஅ 2013㸬⌰⌫ิᓥ࠿ࡽᚓࡽࢀࡓ᪥ᮏึグ㘓ࡢࣚ࢘ࢪ࢘࢜⛉ࣄ࣓ࢺࢤ࣑࢘ࣖࢵࢥ㸦᪂⛠㸧Halicampus spinirostris㸬㨶㢮Ꮫ㞧ㄅ㸪60㸸157-161㸬ᮏᮧᾈஅ 2013㸬ᒇஂᓥࡢ㨶㢮┦ࡢㅦ㸬ᝆஂࡢ᫬ࢆ้ࡴᒇஂᓥ㸬᭶หࢲ࢖ࣂ࣮㸪391㸸
128-134㸬
ᮏᮧᾈஅ 2014㸬㮵ඣᓥࡢ㨶㢮㸬࠿ࡈࡋࡲ᥈ゼ➨ 19 ᅇ㸬㮵኱ࢪ࣮ࣕࢼࣝ㸪195㸸19㸬ᮏᮧᾈஅ 2015㸬⌰⌫ิᓥࡢ㨶㢮ከᵝᛶ㸬༡すㅖᓥࡢ㨶㢮ከᵝᛶ㸪ࡑࡢᡂ❧࡜ಖ඲㸬࢚ࢥࣟࢪ࣮ㅮᗙ 8㸦᪥ᮏ⏕ែᏛ఍⦅㸧㸪༡᪉᪂♫㸪㮵ඣᓥ㸦༳ๅ୰㸧㸬
MOTOMURA, H. and AIZAWA, M. 2011. Illustrated List of Additions to the Ichthyofauna ofYaku-Shima Island, Kagoshima Prefecture, Southern Japan: 50 New Records from theIsland. Check List, 7: 448-457.
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