石油汚染が海洋生物に及ぼす影響の基礎的研究-5-石油ゲル化剤の海産生物に対する毒性

概要

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The toxicity of two products (abbrev. A and B) of the gelling compounds to solidify petroleum was assayed for a marine diatom, Skeletonema costatum, and a rice fish, Oryzias latipes, which had been previously acclimated to sea water, and the following results were obtained: the lethal amounts of A and B to the diatom are more than 1, 000mg/l and 560 mg/l respectively, when A and B are separately added to the culture medium; the 24-h LA50 (which means the lethal amount of the gelling compound to 50% of the test organisms in 24 hours) of A and B to the fish are 7, 400mg/l and 4, 700mg/l respectively, when A and B are separately added to the test sea water; the filtrate of the culture medium or the sea water containing A or B is far less toxic to these test organisms.
日本水産學會の論文