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01 Bulletin of marine sciences and fisheries, Kochi University (高知大学海洋生物研究報告)  12(1992)-25(2007) >

このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10126/4381

タイトル: 高知県横浪半島白ノ鼻の潮だまりにおけるカエルウオの成長に伴う形態と食性の変化
その他のタイトル: Growth-related changes in morphology and food habit of a blenny, Istiblennius edentulus, inhabiting rock pools at Shiranohanaon Yokonami Peninsula, Kochi Prefecture
著者: 永友, 繁
町田, 吉彦
遠藤, 広光
Nagatomo, Shigeru
Machida, Yoshihiko
Endo, Hiromitsu
キーワード: Istiblennius edentulus
blenniid fish
morphological change
food habits
digestive tract
attached diatom
algal grazer
雑誌名: Bulletin of Marine Sciences and Fisheries, Kochi University
発行日: 29-Mar-2002
出版者: 高知大学海洋生物教育研究センター
抄録: Istiblennius edentulus is the most abundant blenny in the rocky shore areas of Kochi Prefecture. Specimens (n=258) were collected from rock pools at Shiranohana on Yokonami Peninsula, Kochi Prefecture, from May to October 1998. The specimens ranged from 16.7 mm to 116.8 mm standard length (SL). Newly recruited fishes smaller than 20 mm SL were found in August, As SL increased up to 20 mm, the length and complexity of the digestive tract and the number of teeth all rapidly increased. As SL increased beyond 20 mm SL, the length of the digestive tract and the number of teeth continued to increased, but at a slower rate, while the complexity of the digestive tract did not change. Although large fishes occasionally ingested copepods and small benthic animals, this species seemed to be an algal grazer, mainly feeding on attached pennate diatoms. However, the genera of diatoms found in the digestive tract slightly changed with fish growth and seasons.
URI: http://hdl.handle.net/10126/4381
出現コレクション:01 Bulletin of marine sciences and fisheries, Kochi University (高知大学海洋生物研究報告)  12(1992)-25(2007)


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