河川生活期のニホンウナギにおける浮き石による被食回避効果の検証

Rei Sakanoue, Shun Satoh, Kazuki Matsushige, Yoshiya Yasutake, Yusuke Hibino, Miyuki Manabe, Kazuo Utida, Noritaka Mochioka

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

One of the likely causes of the decrease in the abundance of the Japanese eel Anguilla japonica is the reduction of refuge habitats, such as rocky areas or rock piles, due to artificial river renovations. To determine whether the presence of rock piles affects predation on this species, we compared the survival rate between groups kept with the rock-pile structure (experimental group) and groups kept without the rock-pile structure (control group) in simulated natural conditions. The survival rate of the experimental group was found to be significantly higher than that of the control group, strongly indicating that the rock piles function as vital shelters to protect Japanese eels from bird predators.

寄稿の翻訳タイトルShelter eŠect of the gaps within rock piles to reduce the predation on Japanese eel Anguilla japonica
本文言語日本語
ページ(範囲)255-264
ページ数10
ジャーナルNippon Suisan Gakkaishi (Japanese Edition)
87
3
DOI
出版ステータス出版済み - 5月 15 2021

!!!All Science Journal Classification (ASJC) codes

  • 水圏科学

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