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URIhttp://ypir.lib.yamaguchi-u.ac.jp/fu/metadata/1321
タイトルクロダイ成魚による養殖ワカメの食痕の特徴と採餌󠄀行動
タイトルヨミクロダイ セイギョ ニヨル ヨウショク ワカメ ノ ショクコン ノ トクチョウ ト サイジ コウドウ
タイトル別表記Characteristics of bite scars observed in the cultured wakame Undaria pinnatifida by the Japanese black seabream Acanthopagrus schlegelii and feeding behavior
作成者野田, 幹雄
村瀬, 昇
作成者ヨミノダ, ミキオ
ムラセ, ノボル
作成者別表記Noda, Mikio
Murase, Noboru
著者キーワードbite scars
wakame
Acanthopagrus schlegelii
cultivation
overbrowsing
feeding behavior
資料タイプtext
ファイル形式application/pdf
内容記述(抄録等)Recently overbrowsing by fish in cultivation of the wakame Undaria pinnatifida has become problematic and in particular the Japanese black seabream Acanthopagrus schlegelii. We examined characteristics of bite scars left on thalli of the cultured U.pinnatifida by feeding of the Japanese black seabream A. schlegelii in a tank experiment. The species showed active feeding behavor of the cultured U. pinnatifida and fed on stems as well as blades. Blades and stems were sharply torn by biting and shaking its head and thus most of bite marks left on blades were straight cut surfaces. However, cross sections in consumed stems were not only straight but also split in a number of strands. The shape of bite marks on the thalli was thought to be usefull for identifying the fish species that caused feeding damage of the cultured U. pinnatifida.
出版者水産大学校
出版者ヨミスイサン ダイガッコウ
Nii資料タイプ紀要論文
本文言語jpn
ISSN0370-9361
掲載誌名水産大学校研究報告
69
4
開始ページ93
終了ページ101
発行日2021-03
著者版/出版社版出版社版
リポジトリIDNF0069403
ファイル69-4-93-101.pdf ( 877.9KB ) 公開日 2021-06-28
査読の有無査読あり
地域区分水産大学校