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Growth and maturation of Pacific saury Cololabis saira under laboratory conditions

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Title: Growth and maturation of Pacific saury Cololabis saira under laboratory conditions
Authors: Nakaya, Mitsuhiro Browse this author →KAKEN DB
Morioka, Taizo Browse this author
Fukunaga, Kyouhei Browse this author
Murakami, Naoto Browse this author
Ichikawa, Takashi Browse this author
Sekiya, Sachio Browse this author
Suyama, Satoshi Browse this author →KAKEN DB
Keywords: Diet shift
Feeding habits
Slime flounder
Issue Date: Jan-2010
Publisher: Springer
Journal Title: Fisheries Science
Volume: 76
Issue: 1
Start Page: 45
End Page: 53
Publisher DOI: 10.1007/s12562-009-0179-9
Abstract: This study details the growth and maturation processes of Pacific saury Cololabis saira from eggs to first spawning under laboratory conditions. They were reared at 20°C, and fed almost to satiation every day. There was no significant difference in the knob length (KnL) between males and females, and so data for both sexes were combined in the following Gompertz growth formula: KnL t = 277.1 exp[−exp(−0.015 (t − 83.8))]. The first spawning was observed 243 days after hatching (DAH). At the beginning of spawning, when the mean KnL was about 250 mm, only several hundred eggs were spawned at most. The spawning continued, and the number of spawned eggs increased notably after 260 DAH. Correlation and stepwise multiple regression analysis of the gonad somatic index (GSI) of Pacific saury versus KnL, CF, and DAH revealed that only DAH (R = 0.88 and 0.72 for males and females, respectively) was significantly correlated with GSI of Pacific saury (P < 0.001). This result suggests that DAH is one of the most influential factors for maturation in this species.
Rights: © 2016 公益社団法人日本水産学会
The final publication is available at
© 2016 The Japanese Society of Fisheries Science
Type: article (author version)
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: 中屋 光裕

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