桐山隆哉，岩永俊介，塚原淳一郎：有明海南有馬地先における春・秋成熟のウミトラノオの消長（短報） Bulletin of Nagasaki Prefectural Institute of Fisheries No.40（2014） ᪺᭯ᾇ༞᭯㤷ᆀ࡞࠽ࡄࡾ᫋࣬⚽ᠺ⇅ࡡ࣐ࢹࣚࢿ࢛ࡡᾐ㛏㸝▯ሒ㸞 ᒜ㝧သ࣬ᒷỄಆ࣬ሪཋῗୌ㑳 Growth and maturation of Sargassum thunbergii in spring and autumn along the coast of Minami-arima in Ariake Bay Takanari KIRIYAMA࣬Shunsuke IWANAGA࣬Junichirou TSUKAHARA We surveyed the growth and maturation of Sargassum thunbergii at Mukaigoya Minami-arima in Ariake Bay from January 2013 to December 2014. The thallus length reached its maximum twice in March and August 2013, and once in June 2014. Maturation was observed in the spring (May to June in 2013, May to July in 2014) and autumn (August to October in 2013 and 2014). Mature thallus lengths were 12-49 cm in spring and 14-30 cm in autumn of 2013, and 53-137 cm and 13-29 cm in 2014. We then surveyed the maturation of S. thunbergii at eight sites in Iki, Seihi, Oomura Bay, Tachibana Bay, and Ariake Bay sea areas during the period between August and December in 2013 and 2014. The maturation was observed at four sites of the surveyed areas, hence , in addition to the result of the survey at Mukaigoya, mature S. thunbergii was considered to be widely distribute along the coastal areas from eastern Tachibana Bay to the mouth of Ariake Bay in the spring and autumn. ࣐ࢹࣚࢿ࢛ Sargassum thunbergii ࡢᮇධἚ ᓃ࡞ฦᕱࡊ㸡⸬㛏ࡢ㏳ᖏ 1m ௧ୖ࡚࠵ࡾ㸡ᮇᕗ ࡚᩺ࡒ࡞☔ヾࡈࡿࡒࡡ࡚㸡ࡐࡡㄢᰕ⤎ᯕࢅሒ࿈ࡌ ࡾࠊ ኯᖲὊᓃ୯㒂௧አࡡ㟴✔ᇡ➴࡚ࡢ 1㹳2m ࡞㐡ࡌ ㄢᰕࡢ㸡 2013 ᖳ 1 ᭮㹳2014 ᖳ 12 ᭮ࡡẎ᭮ 1 ᅂ㸡 ࡾࠊ1, 2)ᠺ⇅ࡢᾇ㐠ᚰ㊨ 3)ࡷா㒌ᗋ⯑㭧 4)࡚ ኬ₳ࡡ᭩ᖱ₳࡞⾔࠷㸡⌟ሔ࠵ࡾ࠷ࡢᵾᮇࢅཱི ሒ࿈ࡈࡿ࡙࠷ࡾࡻ࠹࡞㸡ୌ⯙Ⓩ࡞᫋㹳ิኚࡡᖳ 1 ࡊ࡙㛏ᓧ┬⥪ྙỀ⏐ム㥺ሔ㸝௧ୖ㸡Ềム㸞࡞ᣚࡔ ᅂ࡚࠵ࡾ㸡༐ⴝ┬ᑚ 5, 6) ࡡࡻ࠹࡞࡛᫋⚽ࡡᖳ ᖉࡽ㸡⸬㛏ࡡ゛ῼ࡛⏍Ṣჹᗃࡡ᭯↋ࢅㄢࡒࠊ⸬ 2 ᅂࡲࡼࡿࡾࡵࡡ࠵ࡾࠊ㛏ᓧ┬࡚ࡵᬉ㏳࡞ࡲࡼ 㛏ࡢᠺ㛏ࡡⰃ࠷୕న 20 మࡡᖲᆍೋ࡛ࡊ㸡ᠺ⇅ ࡿ㸡 ࠔࢾࢫ࣐࣓ࠕ࡛ࡣࡿࣃࢩ࢞ S. fusiformis ࡢ⏍Ṣჹᗃࡡ᭯↋࡚ึ᩷ࡊࡒࠊỀῺࡢỀム㸝ᴏ ࡡ❿ྙ⛸࡛ࡊ࡙㥉㝎ࡈࡿࡾⰃࡂ▩ࡼࡿࡒ⛸ ㈠″㒂㸞 2003㹳2014 ᖳ࡞ᐁ᪃ࡊࡒ᪺᭯ᾇ㛏ᓧ ࡚࠵ࡾࠊࡊ࠾ࡊ㸡ᮇ┬࡞࠽ࡄࡾ⏍ឺ࡞㛭ࡌࡾ▩ず Ἒᓃびῼ㸝༞᭯㤷⏣Ἒᓃ 5m Ề㸞ࡡ⤎ᯕࢅ⏕࠷ ࡢᑛࡂ㸡㛏ᓧᕰ㔕ẍ⏣㔕ẍᓧ 8) 7, 8) ࡛ኬᮟࡡ㛏 ࡒࠊ ࡡሒ࿈࠵ࡾࡡࡲ࡚㸡┬හᆀ࡞ฦᕱ ḗ࡞㸡⚽࡞ᠺ⇅ࡌࡾ࣐ࢹࣚࢿ࢛ࡡฦᕱࡡ᭯↋ ࡌࡾᮇ⛸ࡡᠺ⇅࡞ࡗ࠷࡙ࡢ⢥ᰕࡈࡿ࡙࠷࠷ࠊࡆ ࢅ☔ヾࡌࡾࡒࡴ㸡2013㸡2014 ᖳࡡ 8㹳12 ᭮ࡡ㛣࡞ ࡡࡒࡴ㸡ᮇ┬࡚ࡡᠺ⇅ࡢ 5㹳6 ᭮ࡡᖳ 1 ᅂ࡛⩻ Fig.1 ࡞♟ࡌኈᒪᾇ༇ࡡኈᒪᕰ㒋ࢿ⏣ᚷཋὶ 㸝St. ࠻ࡼࡿ࡙࠷ࡒ㸡ᰡཋ࣬㣜㛣 8)ኬᮟዚ㒂Ἒ A㸞 㸡けᙴᾇ༇ࡡけᾇᕰኬᓞ⏣࢛࢛ࣁ࢙㸝St. B㸞 㸡 ᓃࡡ㛏⏣ᇸᓧ࡚࡛᫋⚽ࡡᖳ 2 ᅂᠺ⇅ࡌࡾ࣐ࢹ 㸝St. C㸞 橘湾海 大村湾海区の諫早市多良見町佐瀬 ， ࣚࢿ࢛ࡡฦᕱࢅ☔ヾࡊ㸡ᮇ┬࡞ࡢ 2 ࢰࣈࡡᠺ⇅ 㸝St. D㸞 区の雲仙市小浜町木津 と南島原市加津佐 ࢅᣚࡗ࣐ࢹࣚࢿ࢛ࡡᏋᅹ᪺ࡼ࠾࡞ࡖࡒࠊ St. E㸞 有明海海区の南島原市口之 町津波見名（ ， ᅂ㸡࡛᫋⚽࡞ᠺ⇅ࡌࡾ࣐ࢹࣚࢿ࢛ࡡฦᕱ㸡 津町早崎 と南有馬町浦田 ， 㸝St. F㸞 㸝St. G㸞 および島 ᪺᭯ᾇཾ㒂ࡡ༞᭯㤷⏣ྡྷᑚᒁᆀ㸝Fig.1㸡St.1㸞 5 8 原市新田㸝St. H㸞 の県内 海区 地区で標本を採 ⏣ᇸᓧ ─7─ Fig. 1 長崎県水産試験場研究報告 第40号 2014年 130° 130° E129° E129° St.1：Mukaigoya St.A：Shiwarahama St.B：Oobae St.C：Sase St.D：Kizu St.E：Tsubamimyo St.F：Hayasaki St.G：Urata St.H：Shinden Iki Isl. Gounoura ○ Hirado St.B Oomura Bay Ooshima N33° St.A St.C Tarami Nagasaki ◎ The Goto Isls. Ariake Bay St.H St.H Shimabara St.D Obama St.E Kazusa St.G Kuchinotsu Tachibana Bay St.F Minamiarima St.1 Fig. 1 Map of the survey sites. St.1: Growth and maturation survey (January 2013 to December 2014). St. A 㹳 H: Maturation survey (Augast to December in 2013 and 2014). ཱིࡊ㸡⸬㛏ࡡ゛ῼ࡛⏍Ṣჹᗃࡡ᭯↋ࢅㄢࡒࠊ⸬ ࠊ ᭮ 6 ࡞ࡢ⏍Ṣჹ ⸬㛏ࡢ 14㹳30 ੈ࡚࠵ࡖࡒࠊ11 㛏ࡢᠺ㛏ࡡⰃ࠷୕న 10 మࡡᖲᆍೋ࡛ࡊࡒࠊᾇ ᗃ㸡ⴝ㸡Ẵ⬂࡛ࢆ⬲ⴘࡊࡒᯖ࡛⸬㛏ᩐੈ ༇༇ฦࡢ㛏ᓧ㎨ᯐỀ⏐⤣゛ᖳሒࡡᑚᾇ༇༇ฦ 9)࡞ ࡡ᩺ࡊ࠷ᯖࡲࡼࡿࡒࠊ 2014 ᖳ࡚ࡢ㸡1 ᭮ࡡᖲᆍ⸬㛏ࡢ๑ᖳ࡛ኬᕣ ‵ࡋ࡙⾔ࡖࡒࠊ ༞᭯㤷⏣ྡྷᑚᒁᆀ࡞࠽ࡄࡾ࣐ࢹࣚࢿ࢛ ࡡ ࠾ࡖࡒ㸡ࡐࡡᚃࡡᠺ㛏࡞㐢࠷ࡲࡼࡿࡒࠊ๑ᖳ ᾐ㛏 2013 ᖳ࡛ 2014 ᖳࡡ 1㹳12 ᭮࡞࠽ࡄࡾ⸬㛏 ࡚ࡢ⸬㛏᭩ኬ࡞ࡖࡒ ࡡࡢ 3 ᭮ ࡚࠵ࡖࡒ㸡 ࡡንࢅ Fig.2 ࡞♟ࡌࠊ2013 ᖳ࡚ࡢ㸡ᖲᆍ⸬㛏࡛ 2014ᖳ࡚ࡢ㸡6࡚᭮࠵ࡽ㸡1᭮17ࡡ22ੈ㸝19㹳 ᭩ኬ⸬㛏ࡢ 3 ᭮ 29 ࡞ᖳ㛣࡚᭩ኬ࡛ࡽ㸡ࠍ 42ੈ㸞 ࠾ࡼ 6᭮13ࡡ 76cm㸝54㹳114 ੈ㸞ࡱ࡚ఘ㛏 40 ੈ࡛ 51 ੈ࡚࠵ࡖࡒࠊࡐࡡᚃ㸡ᖲᆍ⸬㛏ࡢ 7 ᭮ ࡲࡼࡿࡒࠊ᭩ኬ⸬㛏ࡢ๑ᖳࡡ 3㹳6 ᭮ࡡ 40 㹳 51 23 ࡡ 13 ੈࡱ࡚ᚆࠍ࡞▯ࡂࡖࡒ㸡3㹳6 ᭮࡞ ੈ ࡞ᑊࡊ㸡2014 ᖳ࡚ࡢ 5㹳7 ᭮ࡡ 109㹳137 ੈ࡛ ࡢ᭩ኬ⸬㛏 40㹳51 ੈࡡኬᆵమࡲࡼࡿࡒࠊࡆ 1 m ௧୕࡞㐡ࡊࡒࠊ6 ᭮௧㜾࡚ࡢ㸡๑ᖳࡢ 3 㹳 7 ࡡ㛣ࡡ 5 ᭮ 27 ࡛ 6 ᭮ 24 ࡞ධమ࡚⏍Ṣჹᗃ ᭮ࡡ㛣ࡢᚆࠍ࡞▯ࡂࡽ㸡8 ᭮࡞ୌఘ㛏ࡊ㸡ࡐ ࡲࡼࡿ㸡⸬㛏ࡢ 12㹳49 ੈ࡚࠵ࡖࡒࠊ7 ᭮ 23 ࡡᚃ 12 ᭮ࡱ࡚▯ࡂࡽ㸡12 ᭮࡞ᖳ㛣࡚᭩ᑚ࡞ ࡞ࡢ⏍Ṣჹᗃ㸡ⴝ㸡Ẵ⬂࡛ࢆ⬲ⴘࡊࡒᯖ ࡖࡒࠊࡊ࠾ࡊ㸡2014 ᖳ࡚ࡢ㸡6㹳11 ᭮ࡡ㛣࡞㏻⤾ ࡛㸡 ⸬㛏 5㹳6 ੈࡡ᩺ࡊࡂఘࡦࡒᯖࡲࡼࡿࡒࠊ ࡊ࡙▯ࡂࡽ㸡11 ᭮ 25 ࡞ 3cm㸝2㹳4 ੈ㸞࡛ᖳ 8 ᭮ 21 ࡞ࡢ᩺ࡊ࠷ᯖ᛬㏷࡞ఘ㛏ࡊ㸡ᖲᆍ⸬ 㛣࡚᭩ᑚ࡞ࡖࡒࠊ⏍Ṣჹᗃࡡᙟᠺࡢ๑ᖳࡡ 5㹳6 㛏 28 ੈ㸝᭩ᑚ 25㹳᭩ኬ 32 ੈ㸞࡛ࡖࡒ ࠊࡐࡡᚃ㸡 ࡛᭮ 8㹳10 ᭮࡞ᑊࡊ,2014 ᖳ࡚ࡢ 5㹳7 ᭮㸝⸬㛏 53 ⸬㛏ࡢᚆࠍ࡞▯ࡂࡽ㸡12 ᭮ 4 ࡞ࡢ 14cm㸝1 3 㹳137 ੈ㸞࡛ 8㹳10 ᭮㸝13㹳29 ੈ㸞࡚࠵ࡖࡒࠊ ࡡ㛣ࡡ 8 ᭮ 㹳17 ੈ㸞࡛ᖳ㛣࡚᭩ᑚ࡞ࡖࡒࠊࡆ ࠽, 7 ᭮ 14 ࡚ࡢ⏍Ṣჹᗃ㸡ⴝ㸡Ẵ⬂ࡡ⬲ⴘ┘ 21 㹳10 ᭮ 21 ࡞ࡢධమ࡚⏍Ṣჹᗃࡲࡼࡿ㸡 ❟ࡔ 㸡ᯖ ࡡࡲࡡࡵࡡ ࠾ࡼཿ࠷ ᯖὮฝ ─8─ .2 桐山隆哉，岩永俊介，塚原淳一郎：有明海南有馬地先における春・秋成熟のウミトラノオの消長（短報） 140 ○：2013 ●：2014 Length（㎝） 120 100 80 60 40 20 0 1/1 2/3 3/8 4/10 5/13 6/15 7/18 8/20 9/22 10/25 11/27 12/30 )LJ㻌 MonthlythalluslengthssofS.thunberrgiiatMukaigo oyaalongtheco coastof Date )LJ㻌)LJ Monthly thalluslengths rgiiatMukaigo oyaalongtheco coastofcoastof MinamiͲarim ainAriakeBay y.thalluslengths 䖃,sofS.thunber 䕿,mesofS.thunber anlengths;ver rticalbarsshow wthe 㻌 Monthly rgiiatMukaigo oyaalongtheco MinamiͲarim ainAriakeBay y. 䖃, length. 䕿,me rticalbarsshow wthe wthe rangebetwee enmaximuma andminimum MinamiͲarim ainAriakeBay y. 䖃, anlengths;ver 䕿,meanlengths;ver rticalbarsshow rangebetwee enmaximuma andminimum length. alluslengthssofS.thunber )LJ㻌 rgiiatMukaigo Monthly oyaalongtheco thalluslengths sofS.thunber coastof rgiiatMukaigo oyaalongtheco rangebetwee enmaximuma andminimum length. coastof ᯞࡢࡳࡢࡶࡢࡀΰᅾࡋࡓࠋ8 ᭶ 12 ᪥㹼 ᪥ ࡋ᪂ࡋ࠸ D E ࡛ࡣ 10 0 ๓ᚋ▷ ▷ࡗࡓࠋࡇࢀࡽ ࡇ 4 ᆅ༊ ༊ St. D㸪 MinamiͲarim nAriakeBayy. 䖃, 䕿,me anlengths;ver ainAriakeBay rticalbarsshow y. wthe 䖃, 䕿,meanlengths;verrticalbarsshow wthe ᯞࡢࡳࡢࡶ ࡢࡀΰᅾࡋ ࡓࠋ8 ࡀࡳ ᭶ 128᪥㹼 ᪥ D ESt.࡛ࡣ 0࡛ࡣ ๓ᚋ▷ ▷ࡗࡓࠋ ࡇࢀࡽ ࡇ 4 ᆅ༊ ༊ 4 ᆅ༊ ᯞࡢࡳࡢࡶ ࡢࡀΰᅾࡋ ࡓࠋ ᭶ ࡛ࡣ 12ࡣ࿘㎶⏕⫱ ᪥㹼 ᪥ St. D㸪 D㸪 D E10 10 0 ๓ᚋ▷ ▷ࡗࡓࠋ ࡇࢀࡽ ࡇ ༊ ࡋ᪂ࡋ࠸ 㛗ࡋࡓᯞ 10 ᭶7ࡋ᪂ࡋ࠸ ᪥ ࡣ᪂ࡓఙ ⏕Ṫჾᗋࡀ ⫱ࡋ࡚࠸ࡓ ࣄࢪ࢟ࡢ ᯞࡸⴥ maximumaandminimumrangebetwee length. enmaximumaandminimumlength. 10) 㛗ࡋࡓᯞ 10 ᭶7 ᪥ ⏕Ṫჾᗋࡀ ࡀࡳࢦ ࡛ࡣ ࡣ࿘㎶⏕⫱ ⫱ࡋ࡚࠸ࡓ ࣄࢪ࢟ࡢ ᯞࡸⴥ ࡽࢀ㸪11 ᭶ 10 25ࡣ᪂ࡓఙ ᪥ࡣ ྂ࠸ᯞࡣᾘ ᾘኻࡋ㸪᪂ࡋ ࡋ࠸ ࢦ Siganus fusscescens ࡢᦤ ᦤ㣗ࡢ≉ᚩ ᚩࣄࢪ࢟ࡢ 㓞ఝࡋ ࡋ 㛗ࡋࡓᯞ ᭶7 ᪥ ࡣ᪂ࡓఙ ⏕Ṫჾᗋࡀ ࡀࡳ ࡛ࡣ ࡣ࿘㎶⏕⫱ ⫱ࡋ࡚࠸ࡓ ᯞࡸⴥ 10) ᭶ St. 25ࡢࡀΰᅾࡋ ྂ࠸ᯞࡣᾘ ࡋ࠸ ࢦ Siganus fusscescens ࡢᦤ ᦤ㣗ࡢ≉ᚩ ࡋ ࠋ 8 ᭶ ࡽࢀ㸪11 12 ᯞࡢࡳࡢࡶ ᪥㹼 ᪥ D㸪 D᪥ࡣ ࡓࠋ 10 0 ๓ᚋ▷ 8 ᭶ ᾘኻࡋ㸪᪂ࡋ 12 ᪥㹼 ᪥ ▷ࡗࡓࠋ ࡇ D㸪 D ⣽ࡃつ๎ṇ E ࡛ࡣ 4ࢦ ᆅ༊ 10 ༊ 0ࢦ ๓ᚋ▷ ▷ࡗࡓࠋ ࡇࢀࡽ ࡇࡢᦤ 4ᚩ ᆅ༊ ༊㓞ఝࡋ St.ࡇࢀࡽ ᪂ࡋ࠸ ᯞࡢࡳ࡛ ࡛࠶ࡗࡓࠋ ࡓ⣽ ṇࡋ࠸ฝพࡸ ࡸᘼ≧ࡢḞ ᦆࡀ☜ㄆࡉ ࡽࢀ㸪11 ᭶E25࡛ࡣ ᪥ࡣ ྂ࠸ᯞࡣᾘ ᾘኻࡋ㸪᪂ࡋ ࡋ࠸ ࢦ Siganus fus scescens ᦤ㣗ࡢ≉ᚩ ᚩ 10)㓞ఝࡋ ࡋ ᯞࡢࡳ࡛ ࡛࠶ࡗࡓࠋ ࡓ⣽ ⣽ࡃつ๎ṇ ṇࡋ࠸ฝพࡸ ࡸᘼ≧ࡢḞ ᦆࡀ☜ㄆࡉ 㛗ࡋࡓᯞ ⏕Ṫჾᗋࡀ ᭶7 ᪥ ࡣ᪂ࡓఙ ࡀࡳ ࡛ࡣ ࡣ࿘㎶⏕⫱ ⏕Ṫჾᗋࡀ ⫱ࡋ࡚࠸ࡓ ࡀࡳ ࣄࢪ࢟ࡢ ᯞࡸⴥ ࡣ࿘㎶⏕⫱ ⫱ࡋ࡚࠸ࡓ ࣄࢪ࢟ࡢ ᯞࡸⴥ ᦆࡀ☜ㄆࡉ ᯞࡢࡳ࡛ ࡛࠶ࡗࡓࠋ ࡓ⣽ ⣽ࡃつ๎ṇ ṇࡋ࠸ฝพࡸ ࡸᘼ≧ࡢḞ 㸪 ༡᭷㤿⏫ ࡇࡢࡼ࠺ ⏫ྥᑠᒇᆅඛ ඛ࡛ࡣ㸪201 ࢀ㸪ᯞࡢḞᦆ ᦆࡣࢦ ࡼࡿ㣗ᐖࡀ ࡀ࡞ཎᅉ 3 ᖺ ࡛ࡣ 10) 10) ༡᭷㤿⏫ ࡇࡢࡼ࠺ ⏫ྥᑠᒇᆅඛ 2013ࢦ ࢀ㸪fus ᯞࡢḞᦆ ᦆࡣࢦ ࡼࡿ㣗ᐖࡀ ᖺ ࢀ㸪11 ኻࡋ㸪᪂ࡋ ᭶ ࡋ࠸ 25 ᪥ࡣ ࢦ ྂ࠸ᯞࡣᾘ ࢦ Siganus fus ᾘኻࡋ㸪᪂ࡋ scescens ࡢᦤ ࡋ࠸ ᦤ㣗ࡢ≉ᚩ ࢦ ᚩ Siganus ࡋ scescens ࡢᦤ ᦤ㣗ࡢ≉ᚩ ᚩ᭶ 㓞ఝࡋ ࡋఙ ⇍ᮇࡣ 4㸪 ᭶ୗ ୗ᪪㹼7 ᭶ୗ᪪ ᪪ 7ඛ࡛ࡣ㸪 ᭶ୗ᪪ ᪪㹼 ࠼ࡽࢀࡓࠋS t. G ࡛ࡣࡑࡢ ࡢᚋ㸪11 33ࡀ࡞ཎᅉ ఙ ࡛ࡣ㸪ᡂ⇍ ⪃࠼ 㸪༡᭷㤿⏫ ࡇࡢࡼ࠺ ⏫ྥᑠᒇᆅඛ ඛ࡛ࡣ㸪 201 ࢀ㸪 ᯞࡢḞᦆ ᦆࡣࢦ ࡼࡿ㣗ᐖࡀ ࡀ࡞ཎᅉ 3㓞ఝࡋ ᖺ ⇍ᮇࡣ 4⏕Ṫჾᗋࡢᙧ ᭶ୗ ୗ᪪㹼7 ᭶ୗ᪪ ᪪ 7≧ἣ ᭶ୗ᪪ ᪪㹼 ࠼ࡽࢀࡓࠋS t. Gࡸᘼ≧ࡢḞ ࡛ࡣࡑࡢ ࡢᚋ㸪11 ᭶ 33᭶ ఙ ఙఙ ࡛ࡣ㸪ᡂ⇍ ⪃࠼ ᯞࡢࡳ࡛ ࡛࠶ࡗࡓࠋ ࡓ⣽ ⣽ࡃつ๎ṇ ṇࡋ࠸ฝพࡸ ࡸᘼ≧ࡢḞ ⣽ࡃつ๎ṇ ᦆࡀ☜ㄆࡉ ṇࡋ࠸ฝพࡸ ᦆࡀ☜ㄆࡉ 11 ᭶ୖ᪪ࡢ ࡢ㛫࠶ࡾ㸪 ᙧᡂࡸṧᏑ≧ ᙇࡋ ࡋ࡚࠸ࡓࡀ㸪 ⏕Ṫჾᗋ㸪 ࡀ⬺ⴠࡋ࡚ ⇍ᮇࡣ 4 ᭶ୗ ୗ᪪㹼7 ᭶ୗ᪪ ᪪ 7ࡓ⣽ ᭶ୗ᪪ ᪪㹼 ࠼ࡽࢀࡓࠋS t.ⴥ㸪Ẽ⬊ࡀ G ࡛ࡣࡑࡢ ࡢᚋ㸪11 33 ఙ ࡛ࡣ㸪ᡂ⇍ ⪃࠼ 11 ࡢ㛫࠶ࡾ㸪 ᙧᡂࡸṧᏑ≧ ≧ἣ ᙇࡋ ࡋ࡚࠸ࡓࡀ㸪 ⏕Ṫჾᗋ㸪 ⴥ㸪Ẽ⬊ࡀ ࡀ⬺ⴠࡋ࡚ 㸪 ༡᭷㤿⏫ ࡛ࡣ㸪 ࡇࡢࡼ࠺ 201᭶ୖ᪪ࡢ ࢀ㸪 ⏫ྥᑠᒇᆅඛ ᯞࡢḞᦆ ඛ࡛ࡣ㸪 ᦆࡣࢦ 201ࡼࡿ㣗ᐖࡀ ࢀ㸪 ࡀ࡞ཎᅉ ᯞࡢḞᦆ ᦆࡣࢦ ࡼࡿ㣗ᐖࡀ ࡀ࡞ཎᅉ 3 ᖺ5㹼6 3ᖺ 11 ᭶ୖ᪪ࡢ ࡢ㛫࠶ࡾ㸪 ⏕Ṫჾᗋࡢᙧ ᙧᡂࡸṧᏑ≧ ≧ἣ ᙇࡋ ࡋ࡚࠸ࡓࡀ㸪 ⏕Ṫჾᗋ㸪 ⴥ㸪Ẽ⬊ࡀ ࡀ⬺ⴠࡋ࡚ ࡽ┒ᮇࡣ ࡣ ᭶ 8㹼10⏕Ṫჾᗋࡢᙧ ᭶⪃ ⪃࠼ࡽࢀ㸪⸴ ⸴㛗 ᯞࡢ ࡢࡳ࡞ࡗ࡚ ࡚࠸ࡓࠋ୍᪉ ᪉㸪ᡂ⇍ࡀ☜ ☜ㄆࡉࢀ࡞ ࡽ┒ᮇࡣ ࡣ 5㹼6 8㹼10 ⪃࠼ࡽࢀ㸪⸴ ⸴㛗 ᯞࡢ ࡢࡳ࡞ࡗ࡚ ࡚࠸ࡓࠋ୍᪉ ᪉㸪ᡂ⇍ࡀ☜ ☜ㄆࡉࢀ࡞ 7 ᭶ୗ᪪ ⇍ᮇࡣ ᪪㹼 4࠾ࡼࡧ ᭶ୗ ୗ᪪㹼7 ࠼ࡽࢀࡓࠋS ᭶ୗ᪪ ᪪ t.ࡢ⠊ᅖ࠶ࡗ G᭶⪃ 7࡛ࡣࡑࡢ ᭶ୗ᪪ ᪪㹼 ࡢᚋ㸪11 ᭶ ࠼ࡽࢀࡓࠋS ࡓ 33St. ఙ ఙ t.ᯞࡢ Gᙼᾏ༊㸧 ࡛ࡣࡑࡢ ࡢᚋ㸪11 ᭶ ᫂ᾏᾏ༊㸧࡛ 33 ఙ ఙ࡛ ࡣ㸪ᡂ⇍ ⪃࠼ ⪃࠼ ࡣྛࠎ12㹼 㹼49 ࡧ14㹼30 ࡢ ࡗࡓࠋ ࡗࡓ B㸦すᙼ St. H㸦᭷᫂ ࡽ┒ᮇࡣ ࡣ᭶ 5㹼6 ᭶ 8㹼10 ᭶⪃ ⪃࠼ࡽࢀ㸪⸴ ⸴㛗 ࡢࡳ࡞ࡗ࡚ ࡚࠸ࡓࠋ୍᪉ ᪉㸪ᡂ⇍ࡀ☜ ☜ㄆࡉࢀ࡞ ࡣྛࠎ12㹼 㹼49 ࠾ࡼࡧ ࡧ14㹼30 ࡢ ࡢ⠊ᅖ࠶ࡗ ࡗࡓ ࡓ St. B㸦すᙼ St. H㸦᭷᫂ ᫂ᾏᾏ༊㸧࡛ ࡛ ᡂࡸṧᏑ≧ ᭶ୖ᪪ࡢ ࡢ㛫࠶ࡾ㸪 ≧ἣ ᙇࡋ ⏕Ṫჾᗋࡢᙧ ࡋ࡚࠸ࡓࡀ㸪 ᙧᡂࡸṧᏑ≧ ⏕Ṫჾᗋ㸪 ≧ἣ ⴥ㸪Ẽ⬊ࡀ ᙇࡋ ࡋ࡚࠸ࡓࡀ㸪 ࡀ⬺ⴠࡋ࡚ ⏕Ṫჾᗋ㸪 ⴥ㸪Ẽ⬊ࡀ ࡀ⬺ⴠࡋ࡚ 2014 ᖺ࡛ࡣ ࡣ㸪ᡂ⇍ᮇࡣ ࡣ 4 ᭶୰᪪㹼 㹼7 ᭶୰᪪ ࡣࠊ ྛࠎ10 ᭶ ᖹᆒ⸴㛗 1.8 1ᙼᾏ༊㸧 ࠾ࡼࡧ ࡧ St. 9㹼11 ᭶ 7 ᭶ࡗࡓࠋ ࡣྛࠎ12㹼 㹼49 ࠾ࡼࡧ ࡧ14㹼30 ࡢ ࡢ⠊ᅖ࠶ࡗ ࡗࡓࠋ ࡗࡓ ࡓ St. ᙼᾏ༊㸧 B㸦すᙼ H㸦᭷᫂ ᫂ᾏᾏ༊㸧࡛ ࡛ 2014 ᖺ࡛ࡣ ࡣ㸪ᡂ⇍ᮇࡣ ࡣ 4 ᭶୰᪪㹼 㹼7 ࡣࠊ ྛࠎ10 ᭶ ᖹᆒ⸴㛗 1.8 1 ☜ㄆࡉࢀ࡞ ࠾ࡼࡧ ࡧ 9㹼11 ᭶ ᭶ ࡽ┒ᮇࡣ ࠼ࡽࢀ㸪⸴ ࡣ⸴㛗 5㹼6 ᭶ ᯞࡢ 8㹼10 ࡢࡳ࡞ࡗ࡚ ᭶⪃ ⪃࠼ࡽࢀ㸪⸴ ࡚࠸ࡓࠋ୍᪉ ⸴㛗 ᪉㸪ᡂ⇍ࡀ☜ ࡢࡳ࡞ࡗ࡚ ☜ㄆࡉࢀ࡞ ࡚࠸ࡓࠋ୍᪉ ࡣࠊ ᪉㸪ᡂ⇍ࡀ☜ 2014 ᖺ࡛ࡣ ࡣ㸪ᡂ⇍ᮇࡣ ࡣ 4 ᭶୰᪪㹼 ᭶ ᖹᆒ⸴㛗 1.8 1 ࡇࡢࡼ࠺ ࠾ࡼࡧ ࡧ᭶ 9㹼11 7᭶ 17㹼 ୰᪪㹼11 ᭶ ᭶ୗ᪪ࡢ㛫 ࠶ࡾ㸪┒ᮇ ᮇࡣ 5㹼7᭶୰᪪ ᭶㹼7 㹼26 ࡛㸪 ࡁ࡞ᡂ㛗ᕪ ྛࠎ10 ᕪࡀࡳࡽࢀࡓ ࡓࠋ ᭶୰᪪ 8 7ᯞࡢ 17㹼 ୰᪪㹼11 ᭶ ᭶ୗ᪪ࡢ㛫 ࠶ࡾ㸪┒ᮇ ᮇࡣ 5㹼7 ᭶5㹼7 ࡛㸪 ᕪࡀࡳࡽࢀࡓ ࡓࠋ 8㸪 ⠊ᅖ࠶ࡗ ྛࠎ12㹼 㹼49 ࡗࡓࠋ ࠾ࡼࡧ ࡗࡓ ࡧ14㹼30 ࡓ St. B㸦すᙼ ࡢ ࡢ⠊ᅖ࠶ࡗ ᙼᾏ༊㸧 ࡗࡓࠋ St. H㸦᭷᫂ ࡗࡓ ࡓ ᫂ᾏᾏ༊㸧࡛ B㸦すᙼ ࡛ ᙼᾏ༊㸧 St.ㄆࡉࢀࡓࡢࡣ H㸦᭷᫂ ᫂ᾏᾏ༊㸧࡛ ࡛ࡇࡢࡼ࠺ ࡼࡧ 㹼10 ᭶⪃ ⪃࠼ࡽࢀ㸪⸴ ⸴㛗ࡣྛࠎ53 3㹼137 ࠾ࡼ 2013 ᖺ⛅ ᡂ⇍ࡀ☜ㄆ ࡣ㸪St. D㸪E Eࡓࠋࡇࡢࡼ࠺ 17㹼 ୰᪪㹼11 ᭶ ᭶ୗ᪪ࡢ㛫 ࠶ࡾ㸪┒ᮇ ᮇࡣ ᭶St. 㹼26 ࡁ࡞ᡂ㛗ᕪ ࡛㸪 ࡁ࡞ᡂ㛗ᕪ ᕪࡀࡳࡽࢀࡓ 8 㹼26 ࡼࡧ 㹼10 ᭶⪃ ⪃࠼ࡽࢀ㸪⸴ ⸴㛗ࡣྛࠎ53 3㹼137 ࠾ࡼ 㸪 2013 ᡂ⇍ࡀ☜ㄆ ㄆࡉࢀࡓࡢࡣ ࡣ㸪St. D㸪E E D㸪E 14 ᭶୰᪪ ᖺ࡛ࡣ ࡣ㸪ᡂ⇍ᮇࡣ ࡣࠊ ࡣ 4ࡗࡓࠋ ྛࠎ10 ᭶୰᪪㹼 㹼7 ᭶ ᖹᆒ⸴㛗 ᭶୰᪪ 1᭶ ࠾ࡼࡧ ࡣࠊ ࡧ ྛࠎ10 9㹼11 ᭶ ᭶ ᖹᆒ⸴㛗 1.8 1 㸦᭷᫂ᾏᾏ༊ ࠾ࡼࡧ ࡧ ༊㸧ࡢ 9㹼11 ᭶ 7ࡢ⠊ᅖ࠶ࡗ ᭶㹼10 71.8 13㹼29 ࡢ ᶲ‴ᾏ༊㸧 ᖺ⛅ St. F㸪G 2 ᾏ༊ ༊ࡣ㸪St. 㸦ᶲ ࡼࡧ ᭶⪃ ⪃࠼ࡽࢀ㸪⸴ ⸴㛗ࡣྛࠎ53 3㹼137 ࠾ࡼ 㸪 2013 ᖺ⛅ ᡂ⇍ࡀ☜ㄆ ㄆࡉࢀࡓࡢࡣ E 13㹼29 ࡢ ࡢ⠊ᅖ࠶ࡗ ࡗࡓࠋ ᶲ‴ᾏ༊㸧 St. F㸪G ༊㸧ࡢ༊㸧ࡢ 2 ᾏ༊ ༊ 2 ᾏ༊ 㸦ᶲ 17㹼 17㹼 ࡣ᪪㹼11 5㹼7 ᭶ ᭶ ᭶ୗ᪪ࡢ㛫 ࠶ࡾ㸪┒ᮇ 㹼26 ࡛㸪 ᮇࡣ ࡁ࡞ᡂ㛗ᕪ ࡗࡓࠋ 5㹼7ᖺ ᭶ ᕪࡀࡳࡽࢀࡓ 㹼26 ࡛㸪 ࡁ࡞ᡂ㛗ᕪ 㸦ᶲ ᕪࡀࡳࡽࢀࡓ ࡓࠋ ࡇࡢࡼ࠺ 813㹼29 ࡢ ࡢ⠊ᅖ࠶ࡗ ᶲ‴ᾏ༊㸧 St.㸦᭷᫂ᾏᾏ༊ F㸪G 㸦᭷᫂ᾏᾏ༊ ༊ ࢜ࡢศᕸ ⛅ᡂ⇍ࡢ ࡢ࣑࢘ࢺࣛࣀ 2013 28 4ࡓࠋ ᆅ༊࡛࠶ࡗࡓ ᆅ ࡇࡢࡼ࠺ ࡓࠋ 2014 ࢜ࡢศᕸ ⛅ᡂ⇍ࡢ ࡢ࣑࢘ࢺࣛࣀ 2013 ᖺ 2㸪 ᆅ༊࡛࠶ࡗࡓ ᆅ ࡓࠋ᭶ ࡼࡧ ࡼࡧ 㹼137 10 ᭶⪃ ࠾ࡼ ⪃࠼ࡽࢀ㸪⸴ 㸪 ⸴㛗ࡣྛࠎ53 2013 ᖺ⛅ 3㹼137 ᡂ⇍ࡀ☜ㄆ ࠾ࡼ ㄆࡉࢀࡓࡢࡣ ࡣ㸪St. 2013 D㸪E ᡂ⇍ࡀ☜ㄆ E4 ᆅ༊࡛࠶ࡗࡓ ㄆࡉࢀࡓࡢࡣ ࡣ㸪St. D㸪E Eࡣ ᖺࡢ 8㹼12 ┴ෆྛᆅ㸦Fig g.࢜ࡢศᕸ 1㸪St. A㹼 㹼H㸧 2014 22014 ᖺ࡛ࡣ㸪 ᡂ⇍ࡀ☜ㄆ ㄆࡉࢀࡓࡢࡣ ᭶ࡢ㛫┴ ⛅ᡂ⇍ࡢ ࡢ࣑࢘ࢺࣛࣀ 20132014 ᖺ 2 4ᖺ⛅ ᆅ8㹼12 ࡓࠋ ᖺࡢ 8㹼12 ┴ෆྛᆅ㸦Fig g. Fig.3 1㸪St. A㹼 㹼H㸧 2ᾏ༊ ᖺ࡛ࡣ㸪 ᡂ⇍ࡀ☜ㄆ ࡣ 8㹼12 ᭶ 㹼29 ࡢ ࡢ⠊ᅖ࠶ࡗ ࡗࡓࠋ ᶲ‴ᾏ༊㸧 ┴ෆྛᆅ㸦Fig St. F㸪G 㸦᭷᫂ᾏᾏ༊ ᶲ‴ᾏ༊㸧 ༊㸧ࡢ 22014 ༊ St. F㸪G 㸦᭷᫂ᾏᾏ༊ ༊㸧ࡢ 2ㄆࡉࢀࡓࡢࡣ ᾏ༊ ༊ ㄆࡉࢀࡓࡢࡣ 㸦ᶲ 㸦ᶲ 3g. ࡓ࣑࢘ࢺࣛࣀ ࢜ࡢᡂ⇍ࡢ᭷ ᭷↓ࢆ ๓ᖺ ᖺྠࡌ St. ࡢ 4 ᆅ༊࡛࠶ࡗ ࡗࡓࠋ࡞࠾㸪 ࡛᥇ྲྀࡋࡓ ᖺࡢ ᭶ࡢ㛫┴ 8㹼12 1㸪St. A㹼 㹼H㸧 2014 2D㹼G ᖺ࡛ࡣ㸪 ᡂ⇍ࡀ☜ㄆ ࡣ 8㹼12 ᭶ ᭶ࡢ㛫┴ 34 ࡓ࣑࢘ࢺࣛࣀ ࢜ࡢᡂ⇍ࡢ᭷ ᭷↓ࢆ Fig.3 ๓ᖺ ᖺྠࡌ St. D㹼G ࡢ 4 ᆅ༊࡛࠶ࡗ ࡗࡓࠋ࡞࠾㸪 ࡛᥇ྲྀࡋࡓ ࢜ࡢศᕸ ⛅ᡂ⇍ࡢ 13 ᖺ ࡢ࣑࢘ࢺࣛࣀ 2 3 ᖺᡂ⇍ࡀ 4 ᆅ༊࡛࠶ࡗࡓ ᆅ ࡓࠋ 2013 ᖺ 2 A㸦ኍ ᆅ༊࡛࠶ࡗࡓ ᆅ ࡓࠋ 2014 2014 3 ࡓ࣑࢘ࢺࣛࣀ ࢜ࡢᡂ⇍ࡢ᭷ ᭷↓ࢆ Fig.3 ๓ᖺ ᖺྠࡌ St. ᭶ࡢㄪᰝ࡛ D㹼G ࡢ࡛࣑࢘ࢺࣛࣀ 4 ᆅ༊࡛࠶ࡗ ࡗࡓࠋ࡞࠾㸪 ࡛᥇ྲྀࡋࡓ ♧ࡍࠋ2013 ࡀ☜ㄆࡉࢀࡓ ࡓࡢࡣ㸪St. St.1 1㸦ኍᒱᾏ༊ ༊㸧࡛ࡣ㸪12 ♧ࡍࠋ2013 3 ᖺᡂ⇍ࡀ ࡀ☜ㄆࡉࢀࡓ ࡓࡢࡣ㸪St. St.1 1㸦ኍᒱᾏ༊ ༊㸧࡛ࡣ㸪12 ࡛࣑࢘ࢺࣛࣀ ࡢ 1㸪St. 8㹼12 A㹼 㹼H㸧 ┴ෆྛᆅ㸦Fig 2014 2 ‴ᾏ༊㸧 ᖺ࡛ࡣ㸪 g. ࡀ☜ㄆࡉࢀࡓ 1㸪St. A㹼 㹼H㸧 ᡂ⇍ࡀ☜ㄆ 2014 2ㄆࡉࢀࡓࡢࡣ ᖺ࡛ࡣ㸪 ࡣSt.1 ᡂ⇍ࡀ☜ㄆ ㄆࡉࢀࡓࡢࡣ ࡣ ࡛࣑࢘ࢺࣛࣀ ᭶ࡢ㛫┴ ᭶ 8㹼12 ᭶ St.♧ࡍࠋ2013 C㸦ᮧ‴ 㸪St. .8㹼12 D㸪E㸦ᶲ‴ ‴ᾏA㸦ኍ ࢜ࡢ ㄆ࡛ࡁ࡞ࡗ ࡗࡓࠋ ᭶ࡢㄪᰝ࡛ ᒱᾏ༊㸧 㸪S 㸦ኍ 3 ᖺᡂ⇍ࡀ ࡓࡢࡣ㸪St. Aࡢศᕸࢆ☜ㄆ 1㸦ኍᒱᾏ༊ ༊㸧࡛ࡣ㸪12 ᭶ࡢㄪᰝ࡛ St.๓ᖺ C㸦ᮧ‴ ‴ᾏ༊㸧 㸪St. .ࡢ D㸪E㸦ᶲ‴ ‴ᾏ ࢜ࡢ ࡢศᕸࢆ☜ㄆ ㄆ࡛ࡁ࡞ࡗ ࡗࡓࠋ ᒱᾏ༊㸧 㸪S ↓ࢆ Fig.3 ࡓ࣑࢘ࢺࣛࣀ 3 ࢜ࡢᡂ⇍ࡢ᭷ ᖺྠࡌ St.᭷↓ࢆ 34 ᆅ༊࡛࠶ࡗ ๓ᖺ ᖺྠࡌ ࡗࡓࠋ࡞࠾㸪 St. ࢜ࡢ D㹼G ࡢ 4 ᆅ༊࡛࠶ࡗ ࡗࡓࠋ࡞࠾㸪 ᥇ྲྀࡋࡓ ᇦ㸧 㸪St. F㸪 G㸦᭷᫂ᾏ ᾏᾏ༊㸧ࡢ 4D㹼G ᾏ༊ ᾏ 6Fig.3 ᆅ༊࡛ ࡛࠶ ᅇࡢㄪᰝ ࡽ㸪㛗ᓮ┴ ┴ἢᓊ࡛ࡣ ⛅ࡢᖺ 2 St. C㸦ᮧ‴ ‴ᾏ༊㸧 㸪St. . D㸪E㸦ᶲ‴ ‴ᾏ ࡢศᕸࢆ☜ㄆ ㄆ࡛ࡁ࡞ࡗ ࡗࡓࠋ ᒱᾏ༊㸧 㸪S 㸪St. F㸪 G㸦᭷᫂ᾏ ᾏᾏ༊㸧ࡢ 4 ᾏ༊ ᾏA11 ᆅ༊࡛ ࡛࠶ ༊㸧࡛ࡣ㸪12 ┴ἢᓊ࡛ࡣ ⛅ࡢᖺ 2 㸦ኍ 㸦ኍ ࡢࡣ㸪St. ࡍࠋ2013 ᖺᡂ⇍ࡀ St.1 ࡀ☜ㄆࡉࢀࡓ 1㸦ኍᒱᾏ༊ ࡓࡢࡣ㸪St. ༊㸧࡛ࡣ㸪12 ࡛࣑࢘ࢺࣛࣀ 1㸦ኍᒱᾏ༊ ᭶ࡢㄪᰝ࡛ ࡛࣑࢘ࢺࣛࣀ 㸪St. F㸪 G㸦᭷᫂ᾏ ᾏᾏ༊㸧ࡢ 46᭶ࡢㄪᰝ࡛ ᾏ༊ ᾏ 6St.1 ᆅ༊࡛ ࡛࠶ ᅇࡢㄪᰝ ᅇࡢㄪᰝ ࡽ㸪㛗ᓮ┴ ࡽ㸪㛗ᓮ┴ ┴ἢᓊ࡛ࡣ ⛅ࡢᖺ 2 ࡗࡓࠋᇦ㸧 St.3AA㸪 Cᇦ㸧 ࡛ࡣ㸪 ᖹᆒ ᆒ⸴㛗ࡣྛࠎ ࠎ9 ᭶ 㸪 ᅇᡂ ᡂ⇍ࡍࡿ࣑࢘ ࣑ࢺࣛࣀ࢜ࡣ ࡣ㸪ᮧ‴‴ ‴ዟ㒊ࡢ㛗 8) ࡗࡓࠋ St. A㸪 C࢜ࡢ ࡛ࡣ㸪 ᆒ⸴㛗ࡣྛࠎ ࠎ9‴ᾏ ᭶ 㸪 ᡂ⇍ࡍࡿ࣑࢘ ࣑ࢺࣛࣀ࢜ࡣ ࡣ㸪ᮧ‴‴ ‴ዟ㒊ࡢ㛗 D㸪E㸦ᶲ‴ St. ‴ᾏ C㸦ᮧ‴ ‴ᾏ༊㸧 ࡢศᕸࢆ☜ㄆ 㸪St. .ㄆ࡛ࡁ࡞ࡗ D㸪E㸦ᶲ‴ ࡗࡓࠋ ࢜ࡢ ࡢศᕸࢆ☜ㄆ ㄆ࡛ࡁ࡞ࡗ ࡗࡓࠋ ᾏ༊㸧 ࡛㸪 ඹᯞ ᯞࡣୖ㒊ࡀḞ Ḟᦆࡋ࡚▷ࡃ ࡃ࡞ ⏫ᇽ ࡢ 㸪᭷᫂ᾏ‴ ‴ཱྀ㒊ࡢ༡᭷ ᭷㤿⏫ྥᑠᒇ ᒇ 8 ᭶㸪S 24 ࡗࡓࠋ St. A㸪 Cᖹᆒ ࡛ࡣ㸪 ᖹᆒ ᆒ⸴㛗ࡣྛࠎ ࠎ911᭶ 11ᇽᓮ 㸪 ᅇᡂ ᅇᡂ ᡂ⇍ࡍࡿ࣑࢘ ࣑ࢺࣛࣀ࢜ࡣ ࡣ㸪ᮧ‴‴ ‴ዟ㒊ࡢ㛗 8) 8) ࡛㸪 ᯞࡣୖ㒊ࡀḞ Ḟᦆࡋ࡚▷ࡃ ࡃ࡞ ⏫ᇽ ᇽᓮ ࡢ 㸪᭷᫂ᾏ‴ ‴ཱྀ㒊ࡢ༡᭷ ᭷㤿⏫ྥᑠᒇ ᒇ 8F㸪 ᭶ 㸧 ༊ 㸪St. 6 ᆅ༊࡛ ࡛࠶ G㸦᭷᫂ᾏ ᾏᾏ༊㸧ࡢ ᅇࡢㄪᰝ ඹᯞ 4 ᾏ༊ ᾏ ࡽ㸪㛗ᓮ┴ 6 ᆅ༊࡛ ࡛࠶ ┴ἢᓊ࡛ࡣ ᅇࡢㄪᰝ ⛅ࡢᖺ ࡽ㸪㛗ᓮ┴ 2⏫ᇽ ┴ἢᓊ࡛ࡣ ⛅ࡢᖺ 2 ᭷㤿⏫ྥᑠᒇ ࡾ㸪⏕Ṫჾ ჾᗋ㸪ⴥ㸪Ẽ ⬊ࡀࡈࡃࢃࡎ ࡎṧࡿᡂ ᡂ⇍ ࡶ ࡶศᕸࡍࡿࡇ ࡇࡀ᪂ࡓ ☜ㄆࡉࢀࡓ ࡓࠋࡉࡽ㸪 ࡛㸪 ඹᯞ ᯞࡣୖ㒊ࡀḞ Ḟᦆࡋ࡚▷ࡃ ࡃ࡞ ᇽᓮ ࡢ 㸪᭷᫂ᾏ‴ ‴ཱྀ㒊ࡢ༡᭷ ᒇ 824᭶ 24 ჾᗋ㸪ⴥ㸪Ẽ ⬊ࡀࡈࡃࢃࡎ ࡎṧࡿᡂ ᡂ⇍ ࡶ ࡶศᕸࡍࡿࡇ ࡇࡀ᪂ࡓ ☜ㄆࡉࢀࡓ ࡓࠋࡉࡽ㸪 St. ࡾ㸪⏕Ṫჾ A㸪 9ࡓࠋ ᭶ 11 㸪 C ࡛ࡣ㸪 ᖹᆒ ᅇᡂ ᡂ⇍ࡍࡿ࣑࢘ ࠎ9 ࣑ࢺࣛࣀ࢜ࡣ ᭶ 11 㸪 ࡣ㸪ᮧ‴‴ ᅇᡂ ᡂ⇍ࡍࡿ࣑࢘ ‴ዟ㒊ࡢ㛗 ࣑ࢺࣛࣀ࢜ࡣ ࡶ ࡣ㸪ᮧ‴‴ ‴ዟ㒊ࡢ㛗 ࡛ࡓࠋࡉࡽ㸪 ࡾ㸪⏕Ṫჾ ჾᗋ㸪ⴥ㸪Ẽ ⬊ࡀࡈࡃࢃࡎ ࡎṧࡿᡂ ᡂ⇍ ࡶศᕸࡍࡿࡇ ࡇࡀ᪂ࡓ ⤊ᮇ࡛࠶ࡗ ࡗࡓࠋSt. Cᆒ⸴㛗ࡣྛࠎ ࡛ ࡛ࡣࡑࡢᚋ㸪᪂ ᪂ࡋ࠸ᯞࡀ ࡀఙ ㏆㞄 㞄ࡢᶲ‴ᮾᓊ ᓊࡽ᭷᫂ᾏ ᾏ‴ཱྀ㒊ࡢ St. S☜ㄆࡉࢀࡓ D㹼G 8) ⤊ᮇ࡛࠶ࡗ ࡗࡓࠋSt. C8)࡛ࡣࡑࡢᚋ㸪᪂ ࡛ ᪂ࡋ࠸ᯞࡀ ࡀఙ ㏆㞄 㞄ࡢᶲ‴ᮾᓊ ᓊࡽ᭷᫂ᾏ ᾏ‴ཱྀ㒊ࡢ St. S ᒇD㹼G ᦆࡋ࡚▷ࡃ ࡛㸪 ࡃ࡞ ඹᯞ ⏫ᇽ ᯞࡣୖ㒊ࡀḞ ᇽᓮ ࡢ Ḟᦆࡋ࡚▷ࡃ 㸪᭷᫂ᾏ‴ ࡃ࡞ ‴ཱྀ㒊ࡢ༡᭷ ⏫ᇽ ᇽᓮ ᭷㤿⏫ྥᑠᒇ ࡢ 㸪᭷᫂ᾏ‴ ᒇ㏆㞄 ‴ཱྀ㒊ࡢ༡᭷ ᭷㤿⏫ྥᑠᒇ ᭶ 㛗ࡋ24 11 ᭶ ⤊ᮇ࡛࠶ࡗ 22cm 㐩 㐩ࡋࡓࡀ㸪 ⏕Ṫ Ṫჾᗋࡢᙧᡂ ᡂࡣ ࡶ⛅ ⛅ᡂ⇍ࡍࡿ ࡿ࣑࢘ࢺࣛ ࣀ࢜ࡢศᕸ ࡀ☜ㄆࡉࢀ ࢀSt. ࡗࡓࠋSt. C ࡛ ࡛ࡣࡑࡢᚋ㸪᪂ ᪂ࡋ࠸ᯞࡀ ࡀఙ 㞄ࡢᶲ‴ᮾᓊ ᓊࡽ᭷᫂ᾏ ᾏ‴ཱྀ㒊ࡢ S ࡛ D㹼G ࡛ 㛗ࡋ 11㛗ࡋ ᭶ 11 22cm 㐩 㐩ࡋࡓࡀ㸪 ⏕Ṫ Ṫჾᗋࡢᙧᡂ ࡶ⛅ ⛅ᡂ⇍ࡍࡿ ࡿ࣑࢘ࢺࣛ ࣀ࢜ࡢศᕸ ࡀ☜ㄆࡉࢀ ࢀ 㸪⏕Ṫჾ ṧࡿᡂ ჾᗋ㸪ⴥ㸪Ẽ ᡂ⇍ ࡶ ⬊ࡀࡈࡃࢃࡎ ࡶศᕸࡍࡿࡇ ࡎṧࡿᡂ ࡇࡀ᪂ࡓ ᡂ⇍ ☜ㄆࡉࢀࡓ ࡶ ࡶศᕸࡍࡿࡇ ࡓࠋࡉࡽ㸪 ࡇࡀ᪂ࡓ ☜ㄆࡉࢀࡓ ࡓࠋࡉࡽ㸪 ☜ㄆࡉࢀ࡞ ࡞ࡗࡓࠋSt. .D㹼G ࡛ࡣ ࡣ㸪9㸪10 ᭶ ࡓࠋ ࡇࢀࡽ 4ࡶ⛅ ᆅ༊࡛ࡣ㸪 ᆅ ࡢᡂ⇍ࢆ☜ ☜ㄆࡋ࡚࠸࡞ ࡞ ࡀ☜ㄆࡉࢀ 9 ᡂࡣ ᭶ 22cm 㐩 㐩ࡋࡓࡀ㸪 ⏕Ṫ Ṫჾᗋࡢᙧᡂ ᡂࡣ ⛅ᡂ⇍ࡍࡿ ࡿ࣑࢘ࢺࣛ ࣀ࢜ࡢศᕸ ࢀ ☜ㄆࡉࢀ࡞ ࡞ࡗࡓࠋSt. . D㹼G ࡣ㸪9㸪10 ࡓࠋ 4 ᆅ༊࡛ࡣ㸪 ᆅ ᾏ‴ཱྀ㒊ࡢ ☜ㄆࡋ࡚࠸࡞ ࡞ 9࠸ࡀ ᮇ࡛࠶ࡗ ࡋ࠸ᯞࡀ ࡗࡓࠋSt. ࡀఙ C ࡛ࡣࡑࡢᚋ㸪᪂ ࡛ ㏆㞄 㞄ࡢᶲ‴ᮾᓊ ᪂ࡋ࠸ᯞࡀ ᓊࡽ᭷᫂ᾏ ࡀఙ ᾏ‴ཱྀ㒊ࡢ ㏆㞄 㞄ࡢᶲ‴ᮾᓊ St. S᭶ D㹼G ᓊࡽ᭷᫂ᾏ ࡛ࡓࠋ St. S ᡂ⇍ࡍࡿࡇ D㹼G ࡛ ☜ㄆࡋ࡚࠸࡞ ☜ㄆࡉࢀ࡞ ࡞ࡗࡓࠋSt. . ࡛ࡣ D㹼G ࡛ࡣ ࡣ㸪9㸪10 ࡇࢀࡽ 4⯡ⓗᡂ ᆅ༊࡛ࡣ㸪 ᆅ ࡢᡂ⇍ࢆ☜ ࡢᡂ⇍ࢆ☜ ࡞ 9 ࡇࢀࡽ 㹼23 ࡛⏕ ⏕Ṫჾᗋ㸪 ⴥ ⴥ㸪 Ẽ⬊ࡢ⬺ⴠ ⴠࡣࢇ ࡳ᭶ ࡀ㸪┴ෆྛᆅ ᆅ࡛ࡣ㸪୍⯡ ࠸ࡀ 㹼23 ࡛⏕ ⏕Ṫჾᗋ㸪 ⴥ ⏕Ṫ ⴥ㸪 Ẽ⬊ࡢ⬺ⴠ ⴠࡣࢇ ࡳ ࡀ㸪┴ෆྛᆅ ᆅ࡛ࡣ㸪୍⯡ ⯡ⓗᡂ ᡂ⇍ࡍࡿࡇ ࡋ ჾᗋࡢᙧᡂ 11 ᭶ ᡂࡣ 22cm 㐩 ࡶ⛅ 㐩ࡋࡓࡀ㸪 ⛅ᡂ⇍ࡍࡿ Ṫჾᗋࡢᙧᡂ ࡿ࣑࢘ࢺࣛ ᡂࡣ ࣀ࢜ࡢศᕸ ࡶ⛅ ⛅ᡂ⇍ࡍࡿ ࡀ☜ㄆࡉࢀ ࢀ ࡿ࣑࢘ࢺࣛ ࣀ࢜ࡢศᕸ ࡀ☜ㄆࡉࢀ ࢀ ᡂ⇍ࡍࡿࡇ ࡽࢀ࡞ࡗ ࡗࡓࠋࡋࡋ 㸪ᯞୖ㒊ࡀ ࡀḞᦆࡋ㸪≉ ≉ ࢆ⪃ ⪃៖ࡍࡿ ⛅ࡢᖺ 2ᆅ࡛ࡣ㸪୍⯡ ᅇᡂ⇍ࡋ࡚ ࡚࠸ࡿࡶࡢ ࠸ࡀ 㹼23 ࡛⏕ ⏕Ṫჾᗋ㸪 ⴥ ⴥ㸪 Ẽ⬊ࡢ⬺ⴠ ⴠࡣࢇ ࡳ ࡀ㸪┴ෆྛᆅ ⯡ⓗᡂ ࡽࢀ࡞ࡗ ࡗࡓࠋࡋࡋ 㸪ᯞୖ㒊ࡀ ࡀḞᦆࡋ㸪≉ ≉ ࢆ⪃ ⪃៖ࡍࡿ ⛅ࡢᖺ 2 ᅇᡂ⇍ࡋ࡚ ࡚࠸ࡿࡶࡢ 㸪9㸪10 ㄆࡉࢀ࡞ ࡞ࡗࡓࠋSt. ᭶ 9ࡽࢀ࡞ࡗ ࡓࠋ . D㹼G ࡇࢀࡽ ࡛ࡣ 4ࡣ㸪9㸪10 ᆅ༊࡛ࡣ㸪 ᆅ 㸪ᯞୖ㒊ࡀ ᭶ࡢᡂ⇍ࢆ☜ ࡓࠋ ☜ㄆࡋ࡚࠸࡞ ࡇࢀࡽ 4 ᆅ༊࡛ࡣ㸪 ᆅ ࡞ࢆ⪃ ࡢᡂ⇍ࢆ☜ ☜ㄆࡋ࡚࠸࡞ ࡞ ࡚࠸ࡿࡶࡢ 9ࡀḞᦆࡋ㸪≉ ࡗࡓࠋࡋࡋ ≉ ⪃៖ࡍࡿ ⛅ࡢᖺ 2 ᅇᡂ⇍ࡋ࡚ ࠸ࡀ ࠸ࡀ 23 ࡣࢇ ࡛⏕ ⏕Ṫჾᗋ㸪 ࡳ ⴥ ⴥ㸪 ࡀ㸪┴ෆྛᆅ Ẽ⬊ࡢ⬺ⴠ ⴠࡣࢇ ᆅ࡛ࡣ㸪୍⯡ ࡳ ⯡ⓗᡂ ࡀ㸪┴ෆྛᆅ ᡂ⇍ࡍࡿࡇ ⯡ⓗᡂ ᡂ⇍ࡍࡿࡇ ─ 9 ᆅ࡛ࡣ㸪୍⯡ ─ ࢀ࡞ࡗ Ḟᦆࡋ㸪≉ ࡗࡓࠋࡋࡋ ≉ ࢆ⪃ 㸪ᯞୖ㒊ࡀ ⪃៖ࡍࡿ ࡀḞᦆࡋ㸪≉ ⛅ࡢᖺ≉ 2 ᅇᡂ⇍ࡋ࡚ ࢆ⪃ ⪃៖ࡍࡿ ࡚࠸ࡿࡶࡢ ⛅ࡢᖺ 2 ᅇᡂ⇍ࡋ࡚ ࡚࠸ࡿࡶࡢ Fig. 3 長崎県水産試験場研究報告 第40号 2014年 2013 30 20 10 0 Length （㎝） A S O N A S O N A S O N A S O N A S O N A S O N A S O N A S O N 40 30 20 10 0 Hatsuyama Gounoura Iki Oshima Saikai 2014Seihi Sase Tarami Kizu Obama Omura Bay Tsubamimyo Kazusa Tachibana Bay Hayasaki Urata Kuchinotsu Minamiarima Shinden Shimabara Ariake Bay A S O N A S O N A S O N A S O N A S O N A S O N A S O N A S O N Hatsuyama Gounoura Oshima Saikai Sase Tarami Iki Seihi Omura Bay Kizu Obama Tsubamimyo Kazusa Tachibana Bay Hayasaki Urata Kuchinotsu Minamiarima Shinden Shimabara Ariake Bay kiprefectured )LJ㻌 ThallusleengthofS.thun nbergiicollecteedateightsite esalongtheco )LJ㻌 Thallusle astofNagasak engthofS.thun nbergiicollecte uring edateightsite esalongth plants or withered plants aturation. 䕕, vegeta AugusttoDeccemberandth heirstateofmaaturation. 䕕, vegetative AugusttoDec cemberandth heirstateofma after maturration; 䕔,ma ature plants with recepta acles. after maturration; 䕔,ma ature plants with recepta acles. ࡓࠋ௨ୖࡢࡇࡽ㸪⛅ᡂ⇍ࡍ ࡍࡿ ⪃࠼ࡽࢀࡓ ࡢᚋࡣ ࡓࠋ௨ୖࡢࡇ 12 ᭶ࡲ࡛▷ࡃ࡞ ࡽ㸪 ࡗࡓࠋᡂ⇍ࡣ ⛅ᡂ⇍ࡍ ࡣ 5㹳7 㹳ࡍࡿ ᭮ ࡑࡢ ࡢᚋࡣ 1 ⪃࠼ࡽࢀࡓ ࡑࡢ ᭶ ࣑࢘ࢺࣛࣀ࢜ࡣ㸪༡᭷ ᭷㤿⏫ྥᑠᒇࡢ㸪ࡑࡢ ࡢ࿘ ࣑࢘ࢺࣛࣀ 53㹼 㹼137 ࢜ࡣ㸪༡᭷ ࡛㸪8㹼10 ᭷㤿⏫ྥᑠᒇ 13㹼29 ࡢ㸪ࡑࡢ ࡛ ࡛ࡳࡽࢀࡓࠋ ࡢ࿘ 53㹼 㹼137 ࡿᶲ‴ᮾᓊ㹼 㹼᭷᫂ᾏ‴ཱྀ ཱྀ㒊⮳ࡿẚ ẚ㍑ ㎶ᇦ࡛࠶ࡿ ୧ᆅ ᆅ༊ࡢᡂ⇍ᮇ ࡿᶲ‴ᮾᓊ㹼 ᮇᡂ⇍⸴㛗 㹼᭷᫂ᾏ‴ཱྀ 㛗ࢆẚࡿ ཱྀ㒊⮳ࡿẚ 㸪ࡢᡂ⇍ ẚ㍑ ⇍ ୧ᆅ ᆅ༊ࡢᡂ ㎶ᇦ࡛࠶ࡿ ⓗᗈ⠊ᅖ ᮇࡣ ࡣ 2013 ศᕸࡍࡿࡇ ᖺ࡛ ࡛ࡣ୧ᆅ༊ࡢ ࡀ᪂ࡓ ࡢ⠊ᅖෆ࠶ ࢃࡗࡓࠋ ࠶ࡗࡓࡀ㸪⸴ ⸴ ᮇࡣ ࡣ 2013 ⓗᗈ⠊ᅖ ศᕸࡍࡿࡇࡀ᪂ࡓࢃࡗࡓࠋ ⛅ ᡂ⇍ࡍࡿ࢘ ࣑࢘ࢺࣛࣀ࢜ ࢜ࡢศᕸࡘ ࡘ࠸ ⛅ 㛗ࡣ ࡣ 2014 ᡂ⇍ࡍࡿ࢘ ᖺ࡛ࡣ 1m ࣑࢘ࢺࣛࣀ࢜ ࢆ㉸࠼ ࠼㸪୧ᆅ༊ࡼ ࢜ࡢศᕸࡘ ࡼࡾࡁࡗ ࡘ࠸ 㛗ࡣ ࡣ 2014 ᖺ 6) ࡚ࡣ㸪 ༓ⴥ┴ ┴ᑠ‖ ࡛ࡣ ࡣ㸪 ⏕⫱Ỉ ࡣ ࡣ 14㹼25Υ࡛ ࡛㸪 ࡚ࡣ㸪 ࡓࠋ ༓ⴥ┴ 2013 ┴ᑠ‖ ᖺ 6)2014 ࡛ࡣ ࡣ㸪 ᖺࡢᡂ ⏕⫱Ỉ ࡣ ᡂ㛗ᕪࡘ࠸ ࡣ 14㹼25Υ࡛ ࠸࡚ࡣ㸪2014 ࡛㸪 4 ࡓࠋ2013 ᖺ ₻㛫ᖏ୰㒊 㒊ࡢᖹࡽ࡞ᒾ ᒾ┙ୖᐦ⏕ ⏕⩌ⴠࢆᙧᡂ ᡂࡋ㸪 ₻㛫ᖏ୰㒊 ࡢኟᏘࡢపỈ 㒊ࡢᖹࡽ࡞ᒾ Ỉ 㸦Fig. ᒾ┙ୖᐦ⏕ 4㸧ࡀ ࡀ୍せᅉ⪃ ⏕⩌ⴠࢆᙧᡂ ⪃࠼ࡽࢀࡓࠋ ᡂࡋ㸪 ᖺࡢ ࡢኟᏘࡢ ᖺࡢ 0 3㹼4 0 201 3㹼4 ᭶ 99㹼10 ᭶ᴟ ᴟ࡞ࡿࠋᖹᆒ⸴㛗 20 201 14 ᭶ ᖺ 99㹼10 6㹼8 ᭶ࡢỈ ࡣ㸪2 ᭶ ᭶ᴟ ᴟ࡞ࡿࠋ 20.9㹼24.8Υ ᖹᆒ⸴㛗 Υ࡛㸪๓ᖺ 20 14 ᖺ 6㹼 ᭶ 㸦᭱ 40 㸧௨ୗ࡛ᡂ ᡂ⇍ࡋ㸪ᡂ⇍ ⇍ᮇࡣ 5㹼7 ᭶ ᭶ 㸦᭱ ẚ 40 2Υ๓ᚋప 㸧௨ୗ࡛ᡂ పࡃ㸪7㹼9 ᡂ⇍ࡋ㸪ᡂ⇍ ᭶ ᭶࡛ࡣᖹᖺࡼ ⇍ᮇࡣࡼࡾ 5㹼71Υ๓ᚋ ᭶ ᚋ ẚ 2Υ๓ ⇍ࡍ 9㹼12 9㹼12 ᭶࡛ ࡛㸪ࡑࡢ୰ᚰࡣ⛅࠶ࡾ㸪 㸪ࡔࡅᡂ⇍ పࡵ ࡵ᥎⛣ࡋࡓ ᭶࡛ ࡛㸪ࡑࡢ୰ᚰ ࡓࠋࡇࡢࡓࡵ ࡣ⛅࠶ࡾ㸪 ࡵ㸪2014 㸪ࡔࡅᡂ⇍ ᖺ 6㹼9 6 ⇍ࡍ ᭶࡛ࡣ ࡣ పࡵ ࡵ᥎⛣ ᓮ ࡿಶయࡣ☜ ☜ㄆࡉࢀ࡚࠸ ࠸࡞࠸ࠋ㛗ᓮ┴㛗⏫ᇽᓮ 8) ᓮ 8) ᡂ㛗 ࡿಶయࡣ☜ ᡂ㛗 㛗ࡸᡂ⇍㐺 ☜ㄆࡉࢀ࡚࠸ 㐺ࡋࡓỈ ᖏ ࠸࡞࠸ࠋ㛗ᓮ ᖏࡀ⥅⥆ࡋ㸪 ┴㛗⏫ᇽᓮ ๓ᖺẚ 㛗ࡸᡂ⇍ ࡛ࡣ㸪⏕⫱ ⫱Ỉ ࡣ 9㹼32Υ࡛㸪₻㛫 㛫ᖏ୰㒊㹼ୗ ୗ㒊 ࡛ࡣ㸪⏕⫱ ᡂ㛗 㛗ࡀࡼࡃ㸪ࡉ ⫱Ỉ ࡣ ࡉࡽᡂ⇍ࡋ 9㹼32Υ࡛㸪₻㛫 ࡋࡓᯞࡢᯤ 㛫ᖏ୰㒊㹼ୗ ᯤṚ࣭ὶฟࡀ ୗ㒊 ࡀ ᡂ㛗 㛗ࡀࡼࡃ ࡞ ࡢᒾ♋ᖏ ࡞ ᭷ 㐜ࢀ ࡢᒾ♋ᖏ ᐦ⏕⩌ⴠࢆ ࢆᙧᡂࡋ㸪5㹼 㹼6 ᭶᭱ 㐜ࢀ ࢀ࡚๓ᖺࡼࡾ ᐦ⏕⩌ⴠࢆ ࡾ 1 ࢆᙧᡂࡋ㸪 ࣨ᭶㐜࠸ ࠸ 75㹼 ᭶࡛ࡶ⏕ 㹼6 ᭶᭱ ⏕Ṫჾᗋࢆ᭷ ࢀ࡚๓ᖺ ࡊࡒ ࡒ⸬㛏ࡡ㛏 ⸬㛏ࡡ㛏࠷ ࠷మṟ మṟᏋ Ꮛࡊࡒࡡ ࡊࡒࡡ࡚ ࡢ࠷࠾࡛ ࡢ࠷࠾ ࡊࡒ ࡒ⸬㛏ࡡ ⸬㛏ࡡ ᪪㹼8 ࡿࠋ9 ᪪㹼8 ࡿࠋ9 ᭶ ࡽ᪂ࡋ࠸ ᯞࡀఙ㛗ࡋ࡚ 6 ᭶ୖ᪪ ᭶ ࡽ᪂ࡋ࠸ ᯞࡀఙ㛗ࡋ ࡚ 6 ᭶ୖ᪪ Fig. 4 ᪪㸦6 ᭶ୖ᪪ ⩻࠻ࡼࡿࡒࠊ ⩻ 㸦⸴㛗 ⚽࡚ࡢ㸡20 ⚽࡚ࡢ㸡2 ᖳ࡛ࡵᠺ⇅ ᖳ࡛ࡵᠺ⇅ࡡ ⩻࠻ࡼࡿࡒ ⩻ ᪪㸦6 ᭶ୖ᪪㸦⸴㛗 㛗 7㹼90 㸧 㸧 9 ᭶ୗ᪪ ᪪㹼12 ᭶ୗ᪪ 㛗 7㹼90 㸧 㸧013㸡2014 913㸡2014 ᭶ୗ᪪ ᪪㹼12 ᭶ୗ᪪ 㛜ጙ࡛⤂ ࡐࡿ ࡑ ࡿ 1 ࣧ᭮࠽ ࣧ᭮ ࠽ࡻࡦ ࡻࡦ ᡂ⇍ 2 ࣧ᭮ 㛜ጙ࡛⤂ 㛜㸧 㛜 㹼20 㸧 ᡂ⇍ࡋ㸪ࡑ ࡑࡢ୰ᚰࡣ࡛㸪⛅ࡔࡅᡂ ᡂ⇍ 㹼20 ᡂ⇍ࡋ㸪ࡑ ࡑࡢ୰ᚰࡣ ࡛㸪⛅ࡔࡅᡂ Water temperatue at 5m depth（℃） 30 ࡍࡿಶయࡣ ࡣ☜ㄆࡉࢀ࡚ ࡚࠸࡞࠸ࠋ༡᭷ ᭷㤿⏫ྥᑠᒇ ᒇ࡛ ࡍࡿಶయࡣ ࡣ☜ㄆࡉࢀ࡚ ࡚࠸࡞࠸ࠋ༡᭷ ᭷㤿⏫ྥᑠᒇ ᒇ࡛ ࡣ㸪⏕⫱Ỉ Ỉ ࡣ 10㹼277Υ㸦Fig. 4㸧 㸧࡛㸪༓ⴥ┴ ┴ᑠ ࡣ㸪⏕⫱Ỉ 7Υ㸦Fig. 4㸧 㸧࡛㸪༓ⴥ┴ ┴ᑠ 25 Ỉ ࡣ 10㹼27 ‖㛗ᓮ┴ ┴㛗⏫ᇽᓮ ᓮࡢ⠊ᅖෆ࠶ࡗࡓࠋศᕸ ᕸࡣ㸪‖㛗ᓮ┴ ┴㛗⏫ᇽᓮ ᓮࡢ⠊ᅖෆ࠶ࡗࡓࠋศᕸ ᕸࡣ㸪 20 㐲ὸࡢ◁ᆅ ᆅᑠ▼ࡸ㌿ ㌿▼ࡀⅬᅾࡍ ࡍࡿ₻㛫ᖏ୰ ୰㒊 㐲ὸࡢ◁ᆅ ᆅᑠ▼ࡸ㌿ ㌿▼ࡀⅬᅾࡍ ࡍࡿ₻㛫ᖏ୰ ୰㒊 15 2013 㹼ୗ㒊Ⅼ Ⅼ⏕㸦⿕ᗘ 0㹼 㹼25㸣㸧㹼 ⏕㸦25㹼50㸣 㸣㸧 㹼ୗ㒊Ⅼ Ⅼ⏕㸦⿕ᗘ 0㹼 㹼25㸣㸧㹼 ⏕㸦25㹼50㸣 㸣㸧 2014 10 ᙧᡂࡋ㸪ᗏ㉁ࡸศᕸᐦᗘࡣ ࡢ⩌ⴠࢆᙧ ᙧᡂࡋ㸪ᗏ㉁ࡸศᕸᐦᗘࡣ ࡣࡇࢀࡽ୧ᆅ ᆅ༊ ࡢ⩌ⴠࢆᙧ ࡣࡇࢀࡽ୧ᆅ ᆅ༊ Mean（2003-2012） ␗࡞ࡗࡓ ࡓࠋᖹᆒ⸴㛗ࡣ 2 ᖺ㛫ࡢㄪ ㄪᰝ࡛ࡁࡃ ࡃ␗ ␗࡞ࡗࡓ ㄪᰝ࡛ࡁࡃ ࡃ␗ 5 ࡓࠋᖹᆒ⸴㛗ࡣ 2 ᖺ㛫ࡢㄪ J F M A M J J A S O N D ࡞ࡾ㸪2013 ᖺ࡛ࡣ 3 ᭶ 8 ᭶ᴟ ᴟ࡞ࡾ㸪ᡂ⇍ ᡂ ࡞ࡾ㸪2013 ᖺ࡛ࡣ ᴟ࡞ࡾ㸪ᡂ⇍ ᡂ 3 ᭶ 8 ᭶ᴟ Month G j h /᭶ 5 ⸴㛗 !Npouimz!xbufs!ufnqfsbuvsft!bmpoh!uif ⸴㛗 12㹼449 ࡛㸪8㹼 㹼10 ᭶ 14㹼 㹼30 ࡣ 5㹼6 12㹼449 ࡛㸪8㹼 㹼10 ᭶ 14㹼 㹼30 ࡣ 5㹼6 ᭶ G j h / 5 !Np āādpbtu!pg!Njobnj.bsjnb!jo!Bsjblf!Cbz/ ࡛ࡳࡽࢀ ࢀࡓࠋ2014 ᖺ࡛ࡣ㸪6 ᖺ ᭶᭱࡞ ࡞ࡾ㸪 ࡛ࡳࡽࢀ ࢀࡓࠋ2014 ᖺ࡛ࡣ㸪6 ᖺ ᭶᭱࡞ ࡞ࡾ㸪 āādpbtu!p ─ 10 ─ 桐山隆哉，岩永俊介，塚原淳一郎：有明海南有馬地先における春・秋成熟のウミトラノオの消長（短報） ⛬ᗘ᪩ࡗࡓࡀ㸪⸴㛗ࡣඹ୧ᆅ༊ࡢ⠊ᅖෆ࠶ ᅄᏘ⸴ሙ 12)ࡀῶᑡࡋ࡚⸴ሙ 12)ࡸ☾↝ࡅኚ ࡗࡓࠋ୍᪉㸪ྥᑠᒇ㏆ࡃྠᾏᇦ࠶ࡿ St. G ࡛ ࡋ࡚࠸ࡿࠋࡇࡢࡓࡵ㸪ᅄᏘ⸴ሙࡢᵓᡂ✀࡛࠶ࡿ ࡣ㸪⛅ࡢᡂ⇍ᮇࡣ 2013 ᖺ࡛ࡣ 9㸪10 ᭶㸪2014 ᖺ ࣓࣭ࣛ࢝ࢪ࣓㢮ࡸࣀࢥࢠࣜࣔࢡ S. macrocarpum ➼ ࡛ࡣ 9㹼11 ᭶࡛㸪ᡂ⇍⸴㛗ࡣ 30㹼40 ࡢ⠊ᅖ ࡢᅾ᮶ࡢ࣍ࣥࢲ࣡ࣛ㢮ࡢከࡃࡣࠕ⾶㏥✀ࠖ㸪 ࠶ࡾ㸦Fig. 3㸧 㸪୧ᆅ༊ᕪࡣ࡞ࡗࡓࠋ⛅ࡢᡂ ⸴ሙࢆᵓᡂࡍࡿ༡᪉⣔✀ࡸᅾ᮶ࡢ࣍ࣥࢲ࣡ࣛ㢮 ⇍ᮇ࡛ࡣྥᑠᒇࡢࡳࡀ␗࡞ࡗࡓࡀ㸪⏕⫱⎔ቃࡼ ࡢ୍㒊ࡀࠕ᪂ฟ✀ࠖࡸࠕ⥔ᣢ✀ࠖศ㢮ࡉࢀࡿࠋ ࡿࡶࡢ࡞ࡢ⏕ែⓗ≉ᛶࡼࡿࡶࡢ࡞ࡢࡣ᫂ ࣑࢘ࢺࣛࣀ࢜ࡣࠕ⥔ᣢ✀ࠖศ㢮ࡉࢀ㸪11) ᳜㣗ᛶ ࡽࡍࡿࡇࡣ࡛ࡁ࡞ࡗࡓࠋ 㨶㢮ࡢ㣗ᐖࡢẚ㍑ⓗᙉ࠸ሙᡤ࡛ࡶṧᏑ࡛ࡁࡿࡇ ḟ㸪⛅ᡂ⇍࡛ࡁࡿせᅉࡋ࡚㸪⸴㛗 20 㸪ᮧ‴࡞ࡢ㟼✜ᇦ࡛ࡣ⸴㛗 2m 㐩ࡋ₻㛫 ௨ୗࡢ▷࠸㛗ࡉ࡛ᡂ⇍࡛ࡁࡿࡇ㸪᪂ࡋ࠸ᯞࡀ ᖏᖏ≧ࡢࡁ࡞⩌ⴠࢆᙧᡂࡍࡿࡇ㸪㏆ᖺࡢὶ ⛅ࡽᛴ㏿ᡂ㛗࡛ࡁࡿ⎔ቃ᮲௳ࡀᥞࡗ࡚࠸ࡿ ࢀ⸴ࡢᵓᡂ✀࡛ࡶ࠶ࡾ㸪13-15) ẕ⸴ࡢ☜ಖࡀᐜ᫆ ࡇ㸪ࡍ࡞ࢃࡕ㸪ᡂ㛗ᙳ㡪ࢆཬࡰࡍ⸴యࡢ ࡛࠶ࡿࡇ࡞ࡽ㸪ࠕ⸴ሙࠖ㐀ᡂࡢቑṪᑐ㇟ ⇱ࡢ㈇Ⲵࢆᅇ㑊࡛ࡁࡿᖸฟࡢ㛫㸪ᮇ㸪้➼ ✀ࡋ࡚ࡢ⏝ࡀᮇᚅࡉࢀࡿࠋࡲࡓ㸪࣑࢘ࢺࣛࣀ ₻ộ࠾ࡼࡧᆅ⌮ⓗ࠶ࡿ࠸ࡣᆅᙧⓗ࡞᮲௳ࡢᙳ ࢜ࡢศᕸỈ῝ࡣ₻㛫ᖏୗ㒊㹼῝ᖏୖ㒊ࡳࡽ 㡪ࡀᣦࡉࢀ࡚࠸ࡿࠋ8)ᅇࡢㄪᰝ࡛㸪⛅ᡂ⇍ ࢀࡿ࣡ࣅ㢮ࡸࢧࢨ࢚ Turbo㸦Batillus㸧 cornutus ࡀ☜ㄆࡉࢀࡓ 2 ᾏ༊ 5 ᆅ༊࠾ࡅࡿ⛅ࡢᡂ⇍ᮇࡢ ࡞⛶㈅ࡢึᮇࡢ⏕⫱ሙ࡞ࡾ㸪ᡂ㛗ࡋࡓ⸴యࡣ ⸴㛗ࡣ㸪༓ⴥ┴ᑠ‖ 6) ࡸ㛗ᓮ┴㛗⏫ᇽᓮ 8)ྠ ᐤࡾ⸴ࡸὶࢀ⸴࡞ࡾ㸪ᗏ᳇⏕≀ࡢ㣵ᩱࡸ㨶㢮ࢆ ᵝ 13㹼30 ࡢ⠊ᅖ࠶ࡗࡓࠋ୍᪉㸪⛅ᡂ⇍ ࡣࡌࡵᵝࠎ࡞⏕≀ࡢ⏕⫱㸪ᦤ㣵㸪⏘༸ࡢሙ࡞ࢆ ࡍࡿ࣑࢘ࢺࣛࣀ࢜ࡀศᕸࡍࡿᮧ‴᭷᫂ᾏ ᥦ౪ࡍࡿࠋ⸴ሙࡢᣑࡼࡾኟ㹼⛅ᾏ⸴ࡢ⌧ ࠾࠸࡚㸪ྠࡌᾏᇦ⨨ࡍࡿ St. C St. D ࡛ࡣ㸪 Ꮡ㔞ࡀ⃭ῶࡍࡿᮇᡂ㛗࣭ᡂ⇍࡛ࡁࡿ࣭⛅ ኟ㹼⛅᪂ࡋ࠸ᯞࡀ 20㹼30 ᡂ㛗ࡋ࡚࠸ࡿ ᡂ⇍ࡍࡿ࣑࢘ࢺࣛࣀ࢜ࡣ㸪⸴ሙᶵ⬟ࡢ⥔ᣢࡸ⸴ሙ ࡶࢃࡽࡎ㸪ᡂ⇍ࡣ☜ㄆࡉࢀ࡞ࡗࡓࠋࡇࡢ 㐀ᡂࢆ⾜࠺ୖ࡛㠀ᖖ㔜せ࡞✀㢮࡞ࡿࠋࡇࢀࡲ ࡓࡵ㸪⏕⫱⎔ቃ᮲௳ࡀ㢮ఝࡍࡿྠᾏᇦศᕸࡋ㸪 ࡛ࣄࢪ࢟ࡢ➇ྜ✀ࡋ࡚㥑㝖ࡉࢀࡿ࡞ࠕགྷ⪅ࠖ ⛅ྠᵝࡢᡂ㛗ࢆࡋ࡞ࡀࡽ㸪ᡂ⇍ࡍࡿࡶࡢࡋ࡞ ࡋ࡚ᢅࢃࢀ࡚ࡁࡓࡀ㸪ࣄࢪ࢟ࡀᾘኻ࠶ࡿ࠸ࡣ⏕ ࠸ࡶࡢࡀࡳࡽࢀࡓࡇࡽ㸪㑇ఏⓗ࡞せᅉࡘ࠸ ⏘⬟࡞ࡗࡓ⁺ሙ࡛ࡣ㸪₻㛫ᖏ࠾ࡅࡿ⸴ሙ㐀 ࡚ࡶ᳨ウࡍࡿᚲせࡀ࠶ࡿ⪃࠼ࡽࢀࡓࠋࡲࡓ㸪 ᡂࡢ᪂ࡓ࡞ቑṪᑐ㇟✀ࡋ࡚㸪ࡑࡢ㔜せᛶࢆぢ┤ ᅇࡢㄪᰝ࡛ࡣಶయูࡢᡂ⇍☜ㄆࢆ⾜ࡗ࡚࠾ࡽࡎ㸪 ࡋ㸪ά⏝ࢆᅗࡗ࡚࠸ࡃᚲせࡀ࠶ࡿࡢ࡛ࡣ࡞࠸ࡔࢁ ᡂ⇍ࡢ୰ᚰࡀ⛅ࡢࡕࡽ࠶ࡿࡢ㸪ࡲࡓ㸪 ࠺ࠋ ࠶ࡿ࠸ࡣ⛅ࡢࡳᡂ⇍ࡍࡿಶయࡢ᭷↓ࡘ࠸ ࡚ࡣ᫂ࡽࡍࡿࡇࡣ࡛ࡁ࡞ࡗࡓࠋᚋ㸪ྛ ㅰ ㎡ ᆅࡢศᕸ≧ἣࡸᡂ㛗࣭ᡂ⇍ሗࢆቑࡸࡍඹ㸪 ᮏ◊✲ࢆ⾜࠺࠶ࡓࡾ㸪ヨᩱࡢᥦ౪ࢆ࠸ࡓࡔ࠸ ⏕⫱⎔ቃࡢᢕᥱࡸ㑇ఏⓗ࡞᳨ウࢆేࡏ࡚⾜࠸㸪 ࡓᓥཎ⯆ᒁ┴༡Ỉ⏘ᴗᬑཬᣦᑟࢭࣥࢱ࣮ ᑠ ࣭⛅ᡂ⇍ᆺࡢ࣑࢘ࢺࣛࣀ࢜ࡢ⏕ែⓗ≉ᛶࡸศᕸ ᩄ⩏ᑓ㛛ᖿ㸪࠾ࡼࡧㄪᰝ༠ຊࢆ࠸ࡓࡔ࠸ࡓྠ せᅉࢆ᫂ࡽࡋ࡚࠸ࡃᚲせࡀ࠶ࡿࠋ Ỉ⏘ᴗᬑཬᣦᑟࢭࣥࢱ࣮ࡢ⫋ဨࡢ᪉ࠎ࠾♩⏦ ㏆ᖺ㸪㛗ᓮ┴ἢᓊ࡛ࡣ㧗Ỉ ࡢᙳ㡪ࡼࡿ᳜ ࡋୖࡆࡿࠋࡲࡓ㸪ཎ✏࠾ࡼࡧⱥᩥࡢᰯ㜀ࢆ࠸ࡓࡔ 㣗ᛶ㨶㢮ࡢ㣗ᐖࡀ㢧ᅾࡋ㸪ᆺᾏ⸴ࡢศᕸࡀ ࠸ࡓ㛗ᓮᏛ⎔ቃ⛉Ꮫ㒊⮬↛⎔ቃಖㅮᗙ ࡁࡃኚࡋ࡚࠸ࡿࠋศᕸࡍࡿ✀㢮ࡣ㸪௨๓ẚ ᩍᤵ 㣤㛫㞞ᩥ༤ኈ㸪࠾ࡼࡧ㛗ᓮᏛᏛ㝔⏕⏘ ࡚ῶᑡ࣭ᾘኻࡋࡓࠕ⾶㏥✀ࠖ㸪ኚࡢ࡞࠸ࠕ⥔ᣢ ⛉Ꮫ◊✲⛉ ᩍᤵ Cyril Glenn Satuito ༤ኈ ✀ࠖ 㸪᪂ࡋࡃࡳࡽࢀࡿࡼ࠺࡞ࡗࡓࠕ᪂ฟ✀ࠖ ῝ㅰࡍࡿࠋ 11) ูࡉࢀࡿࠋ ⸴ሙࡢᙧᡂᮇࡶኚࡋ࡚࠾ࡾ㸪 ─ 11 ─ 長崎県水産試験場研究報告 第40号 2014年 14㸧᱒ᒣ㝯ဢ࣭ሯཎ῟୍㑻࣭ᶫᬛᚿ㸬ϫ㸬㛗ᓮ ᩥ ⊩ 㸯㸧ྜྷ⏣ᛅ⏕㸬᪂᪥ᮏᾏ⸴ㄅ㸬ෆ⏣⪁㭯ᅡ㸪ᮾி㸬 ⁺ ෆ࠾ࡅࡿὶࢀ⸴ㄪᰝ㸦 ᬮᑐᛂࡋ 1998㸹408-409㸬 ࡓ⸴㢮ቑ㣴Ṫᢏ⾡㛤Ⓨ㸧㸬㛗ᓮỈヨሗ 㸰㸧ᇼ ㍤୕㸬⸴㢮ࡢ⏕άྐ㞟ᡂ➨ 2 ᕳ〓⸴࣭⣚ ⸴㢮㸬ෆ⏣⪁㭯ᅡ㸪ᮾி㸬1993㸹164-165㸬 2012㸸68-69㸬 15㸧᱒ᒣ㝯ဢ࣭ሯཎ῟୍㑻࣭ᶫᬛᚿ࣭ᒾỌಇ㸬 㸱㸧ఀ ‶࣭✄ᏹ⮧࣭ྜྷ⏣ᛅ⏕㸬ᾏ㐨ᚸ㊰ Ϫ㸬㛗ᓮ⁺ ෆ࠾ࡅࡿὶࢀ⸴ㄪᰝ㸦 ᬮ ‴࠾ࡅࡿ࣍ࣥࢲ࣡ࣛ㢮ࡢ⏕㛗ᡂ⇍ࡘ ᑐᛂࡋࡓ⸴㢮ቑ㣴Ṫᢏ⾡㛤Ⓨ㸧 㸬㛗ᓮỈヨ ࠸࡚㸬⸴㢮 1981㸹29㸸277-281㸬 ሗ 2013㸸71-72㸬 㸲㸧Umezaki, I. 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