アカウニ幼生に対する塩化カリウムの変態誘起効果

DOI 日本農学文献記事索引 被引用文献1件 参考文献12件

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  • Effect of KCl on the Larval Settlement and Metamorphosis of the Sea Urchin, Pseudocentrotus depressus.

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Larvae of sea urchin Pseudocentrotus depressus were induced to settle and metamorphose by exposure to sea water supplemented with KCl. The larvae responded to KCl within 10 min at KCl concentrations of 32-100 mM and within 60 min at 18 mM at 20°C. Response was completed in 60 min at KCl concentrations of 32-100 mM. Addition of 10, 18, 32, 56 and 100 mM KCl induced 7, 20, 53, 53 and 100% metamorphosis, respectively. However, the juveniles induced by KCl concentration higher than 32 mM could not settle normally. Production of 100% normally settling juveniles was obtained by a brief exposure (5 min) to 100 mM KCl added sea water followed by immediate transfer to untreated sea water. This procedure was effective in a wide range of sea water temperature (14-26°C) .

収録刊行物

  • 水産増殖

    水産増殖 43 (2), 237-241, 1995

    日本水産増殖学会

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