HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
Peer-reviewed Journal Articles, etc >

噴火湾におけるアカガレイおよびイシガレイ仔魚の食性 : 尾虫類Oikopleuraの餌生物としての重要性

Files in This Item:
Takatsu.pdf1.2 MBPDFView/Open
Please use this identifier to cite or link to this item:

Title: 噴火湾におけるアカガレイおよびイシガレイ仔魚の食性 : 尾虫類Oikopleuraの餌生物としての重要性
Other Titles: Feeding habits of two-flatfish-species larvae in Funka Bay, Japan : importance of Oikopleura as prey
Authors: 橋本, 雄太郎1 Browse this author
前田, 晃子2 Browse this author
大野, 雄介3 Browse this author
鹿野, 陽太4 Browse this author
髙津, 哲也5 Browse this author →KAKEN DB
Authors(alt): Hashimoto, Yutaro1
Maeda, Akiko2
Oono, Yusuke3
Kano, Yota4
Takatsu, Tetsuya5
Keywords: diet
house rudiment
food web
Oikopleura labradoriensis
Issue Date: 26-Aug-2011
Publisher: 日本プランクトン学会
Journal Title: 日本プランクトン学会報
Volume: 58
Issue: 2
Start Page: 165
End Page: 177
Abstract: To evaluate the importance of Oikopleura as prey for flatfish larvae, we investigated species composition of appendicularians in the diets of flathead flounder Hippoglossoides dubius and stone flounder Platichthys bicoloratus larvae in Funka Bay in winter and spring (January-May) from 2006 to 2010. 0ikopleura dioica and 0. longicauda were abundant in the bay in January, and 0. labradoriensis increased its population density in February and March. Preflexion, flexion, and small postflexion larvae of flathead flounder fed mainly on invertebrate eggs and copepod nauplii, and large postflexion larvae fed on Oikopleura. Stone flounder larvae fed mainly on Oikopleura through their larval stages, especially in the large larvae. Based on comparison of the inlet filter-like structure in house rudiments of Oikopleura in the flatfish guts, we could identify to species level with a house-rudiment length greater than 550μm. The flatfish larvae fed heavily on 0. labradoriensis. This species can feed on smaller organisms, has a longer life span than other Oikopleura and may have an important role as a trophic shunt from primary producers to the larvae.
Rights: © [2011] 日本プランクトン学会
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高津 哲也

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University