Accumulation of microcystin-LR in dead domestic duck at Iso harbor, Lake Biwa, Japan

DOI 29 References
  • NAKAMURA Koya
    Interdisciplinary Graduate School of Science and Technology, Shinshu University
  • WATANABE Kotomi
    Interdisciplinary Graduate School of Science and Technology, Shinshu University
  • ISHIKAWA Kanako
    Lake Biwa Environmental Research Institute
  • KUMAGAI Michio
    Lake Biwa Environmental Research Institute
  • MIYABARA Yuichi
    Institute of Mountain Science, Shinshu University, Research and Education Center for Inlandwater Enviromant Shinshu University
  • INUZUKA Ryohei
    Institute of Mountain Science, Shinshu University, Research and Education Center for Inlandwater Enviromant Shinshu University
  • YOKOTA Kenji
    Department of Bacteriology, Medical School, Okayama University
  • OGUMA Keiji
    Department of Bacteriology, Medical School, Okayama University
  • PARK Ho-Dong
    Interdisciplinary Graduate School of Science and Technology, Shinshu University

Bibliographic Information

Other Title
  • 琵琶湖磯漁港のアイガモ斃死試料中の藍藻毒素microcystin-LRの蓄積

Abstract

In Iso harbor, which is located in the north basin of Lake Biwa, 22 of 30 domestic duck (Anas platyrhynchos var. domestica; a crossbreed between Mallard A. platyrhynchos and domestic duck) died during August and September 2007. The deaths were not the result of botulism because there were no signs of acute toxicity. Microcystin (MC)-RR and Microcystin-LR were detected in water samples from the harbor. Liver tissues from the dead duck contained 560 ng g-1 DW (178 ng g-1 FW) of MC-LR. MC-LR is a high toxic cyanotoxin produced by cyanobateria, and the duck liver tissue contents were high compared with previous studies. Therefore, we suggest the duck died from MC-LR levels having been exposed to toxic cyanobacteria. This is the first case in which cyanotoxin has been identified in dead waterfowl in Japan.

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Details

  • CRID
    1390282679458902400
  • NII Article ID
    130004497034
  • DOI
    10.3838/jjo.62.153
  • ISSN
    18819710
    0913400X
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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