琵琶湖北湖におけるウログレナの優占的発生と水質，気象要因等との関係

• 吉田 陽一

  水産環境微生物研究所

書誌事項

タイトル別名

• Relationships between the Dominant Occurrence of Uroglena americana and Water Quality and Meteorological Factors in the North Basin of Lake Biwa.
• ビワコ ホッコ ニ オケル ウログレナ ノ ユウセンテキ ハッセイ ト スイシ

抄録

In the north basin of Lake Biwa, harmful dinoflagellate Uroglena americana occurred dominantly, causing bad-smelling tap water in late spring for several years. The relationships between the abundance of U. americana and water quality in the north basin and the meteorological conditions of Lake Biwa were examined. The changes of water quality in the north basin (Station A) of Lake Biwa in early May of 1980-1993 showed that the fluctuation of WT (water temperature), DIP (dissolved inorganic phosphorus), TN: TP (total nitrogen: total phosphorus), DIN:DIP (dissolved inorganic nitrogen: dissolved inorganic phosphorus), and TP:DIP ratios were remarkable. The comparison of each average water quality with regard to the dominant phytoplankton in early May of 1980-1993 showed that U. americana occurred in the waters with water qualities near the mean values, excepting comparatively high WT. The species also occurred in the years with meteorological conditions from mid April to early May close to the mean. These features of water quality and meteorological conditions suggested that the alga was a common species in early May and the control of the dominant occurrences resulted from abnormal water quality and meteorological conditions.

収録刊行物

• 日本水産学会誌

  日本水産学会誌 63 (4), 594-599, 1997

  公益社団法人 日本水産学会

キーワード

• 琵琶湖北湖
• ウログレナ
• 優占植物プランクトン
• 水質要因
• 気象要因

詳細情報

• CRID: 1390001206411827712
• NII論文ID: 10004851558
• NII書誌ID: AN00193422
• DOI: 10.2331/suisan.63.594
• ISSN: 1349998X
• ISSN: 00215392
• NDL書誌ID: 4258516
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010570431
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4258516
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可