広島県三津湾における放流アサリの生残に及ぼす被覆網の効果

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タイトル別名
  • Effect of Cover Nets on Survival Rate of the Clam Released in Mitsu Bay, Hiroshima Prefecture
  • ヒロシマケン ミ ツワン ニ オケル ホウリュウ アサリ ノ セイザン ニ オヨボス ヒフクモウ ノ コウカ

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抄録

Field experiments were made at four sampling stations of Mitsu Bay, Hiroshima Prefecture to examine survival rate of Japanese littleneck clam Ruditapes philippinarum released with and without cover nets which protect from predators. The clams were almost disappeared within one month at experimental flats without cover nets of all sampling stations. The clams were showed 26-32.5% of survival rate at protection of small mesh (4×4 mm) net of stns.1, 2 after ten months, whereas they were not survived at stns. 3, 4. Survival rate of the clam seemed to be affected by predators such as moon snail Glossaulax didyma and black sea bream Acanthopagrus schlegeli.

収録刊行物

  • 水産増殖

    水産増殖 58 (4), 525-527, 2010

    日本水産増殖学会

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