科学的調査037

東京大学三方湖実習

感想

高瀬川

聞き取り内容

＜環境の特徴＞
・優占する植生：ミゾソバ
・水深：0.15〜0.20m
・水温：24.2℃
・底質：礫質
・護岸形状：両側コンクリート舗装

＜採集方法＞
タモ網?、投網

＜生物相＞
トウヨシノボリ、ヌマチチブ、シマドジョウ、ドジョウ、アユ、タモロコ、カワゲラ、ヤゴ、サワガニ、テナガエビ、スジエビ、ツチガエルオタマジャクシ

＜コメント＞
この地点よりやや下流でモロコ、フナを食べていたと記録があった。タモロコが現在もいた。下流よりも礫が多くなったので、岩の下に隠れる生物が下流より多くなったのではないか。
関連記事：科学的調査041

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