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マガレイおよびマコガレイの摂餌と生存に及ぼす水温の影響

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Title: マガレイおよびマコガレイの摂餌と生存に及ぼす水温の影響
Other Titles: Effects of Water Temperature on Feeding and Survival of Righteye Flounders Limanda herzensteini and Limanda yokohamae
Authors: 高橋, 豊美1 Browse this author
富永, 修2 Browse this author
前田, 辰昭3 Browse this author
Authors(alt): Takahashi, Toyomi1
Tominaga, Osamu2
Maeda, Tatsuaki3
Issue Date: 1987
Publisher: 日本水産学会
Journal Title: 日本水産学会誌
Journal Title(alt): Bulletin of the Japanese Society of Scientific Fisheries
Volume: 53
Issue: 11
Start Page: 1905
End Page: 1911
Publisher DOI: 10.2331/suisan.53.1905
Abstract: Two species of righteye flounders, Limanda herzensteini (173~243mm in length) and L. yokohamae (211~271mm in length), were reared under various water temperature conditions, and the effects of temperature on daily feeding rate and their survival were examined. Although L. herzensteini did not feed at temperatures below 0.7℃, no deaths were observed at the lowest rearing temperature (-0.9~-1.3℃). L. yokohamae could also tolerate long-term exposure (approximately three weeks) to subzero temperatures (up to-0.5℃), but they ceased to feed at 1.6~1.9℃. At temperatures below 18~19℃, the daily Feeding rate (%wet body weight per day) of L. herzensteini increased with increasing temperature and began to decrease remarkably at about 19℃, while in L. yokohamae the temperature at when the daily feeding rate began to decrease was about 25℃. In addition, heat resistance experiments suggested that the upper lethal limits of temperature of L. herzensteini and L. yokohamae lay in 25~26℃ and 28~30℃, respectively. From these results, it Became evident that the thermal resistance of these two species which often occur sympatrically in the coastal waters of Japan differs considerably, that is, L. herzensteini is superior in cold resistance, but is inferior in heat resistance to L. yokohamae.
Rights: © 1987 公益社団法人日本水産学会
© 1987 The Japanese Society of Fisheries Science
Type: article
URI: http://hdl.handle.net/2115/38662
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: 高橋 豊美

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