アコヤガイの秋期のへい死とグリコーゲン含量および糖代謝酵素活性との関連性

DOI 日本農学文献記事索引 Web Site 被引用文献6件 参考文献27件

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タイトル別名
  • Relationship Between Autumn Mortality, Glycogen Content, and Carbohydrate Metabolism Enzyme Activity in Japanese Pearl Oyster Pinctada fucata martensii.
  • アコヤガイ ノ シュウキ ノ ヘイシ ト グリコーゲン ガンリョウ オヨビ ト

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Growth and physiological conditions of diploid and triploid Japanese pearl oyster, Pinctada fucata martensii were compared from May 1995 to January 1996. Food availability, as indicated by phytopigment concentration (chlorophyll-a + pheopigment) in environmental water, was approximately 1.0μg/l and 0.5μg/l from May to September and October to January, respectively. Both types of oysters grew satisfactorily from May to September, but had negligible growth from October to January. About 30 % of the oysters died between October and January. The diameter of pearls did not grow in the period of mortalities. The glycogen content in the adductor muscle and total protein content in the serum decreased in autumn. Moreover, 6-phosphofructokinase activity of diploids decreased from September to November whereas their fructose-1, 6-bisphosphatase activity increased remarkably in November. From these results, it is suggested that the primary cause of Autumn mortality was starvation due to a shortage of food.

収録刊行物

  • 水産増殖

    水産増殖 45 (1), 47-53, 1997

    日本水産増殖学会

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