半田市内の河川における外来魚の生息状況と在来魚に及ぼす影響

機関リポジトリ Web Site

書誌事項

タイトル別名
  • Presence of exotic fish species and their impact on native fish in streams in Handa City in Aichi, Japan
  • ハンダシナイ　ノ　カセン　ニオケル　ガイライギョ　ノ　セイソク　ジョウキョウ　ト　ザイライギョ　ニ　オヨボス　エイキョウ

この論文をさがす

説明

To investigate the presence of exotic non-native fish species in streams in Handa City, we caught fish in four streams from July to August 2002. We also investigated the change in species composition by comparison with data from 1994 to 2002. We caught three exotic species, Micropterus salmoides, Lepomis macrochirus and Pseudorasbora parva. M. salmoides showed a tendency to increased numbers from 1999 and this increase seems to be related to decreases in populations of some native fish species during the same time span.

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ