除草剤Bolero 8ECの淡水生物における毒性,生物濃縮,浄化

DOI Web Site 被引用文献2件
  • SANDERS Herman O.
    United States Department of the Interior. Fish and Wildlife Service, Columbia National Fisheries Research Laboratory
  • HUNN Joseph B.
    United States Department of the Interior. Fish and Wildlife Service, Columbia National Fisheries Research Laboratory

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タイトル別名
  • Toxicity, bioconcentration, and depuration of the herbicide bolero 8EC in freshwater invertebrates and fish.
  • 除草剤Bolero 8ECの淡水生物における毒性,生物濃縮,浄化〔英文〕
  • ジョソウザイ Bolero 8EC ノ タンスイ セイブツ ニ オケル ドクセ

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抄録

Bolero 8EC, a herbicide used in rece culture, was moderately toxic to four species of aquatic invertebrates and three species of freshwater fishes in actute toxicity tests. The 96-h LC50's or 48-h LC50's ranged from 1.0 to 6.5mg/l for amphipods Gammarus pseudoimnaeus, daphnids Daphnia magna, juvenile crayfish Orconectes nais, and mature red crayfish Procambarus clarki and from 1.2 to 2.3 mg/l for rainbow trout Salmo gairdneri, bluegills Lepomis macrochirus, and channel catfish Ictalurus punctatus. Bioconcentration of 14C-Bolero during a five day exposure ranged from 10 to 168 for four species of invertebrates and from 48 to 471 for four species of fish. Residues of the herbicide(14C-Bolero) were rapidly eliminated when fish and invertebrates were placed into fresh water. More than 50 percent of the total 14C-radioactivity was eliminated within 24 h by all organisms tested except the red cryafish whose residues in tail tissues declined by 50 percent within 10 days. Judging by the moderately acute toxicity, low bioconcentration, and rapid elimination of residues in fresh water, we suggest that the use of Bolero 8EC will probably result in little environmental hazard to freshwater organisms.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 48 (8), 1139-1143, 1982

    公益社団法人 日本水産学会

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