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Evaluation of larval quality of viviparous scorpionfish Sebastiscus marmoratus

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タイトル: Evaluation of larval quality of viviparous scorpionfish Sebastiscus marmoratus
著者: Matsuo, Yoko / Kasahara, Yasushi / Hagiwara, Atsushi / Sakakura, Yoshitaka / Arakawa, Toshihisa
発行日: 2006年 9月
出版者: 日本水産学会 / The Japanese Society of Fisheries Science
引用: Fisheries Science, 72(5), pp.948-954; 2006
抄録: The aim of this study was to develop an acute test for larval quality in the viviparous scorpionfish Sebastiscus marmoratus. Rearing experiments until day 13 post parturition were conducted to investigate the survival of larvae for 13 different batches, and tolerance to starvation of larvae was examined and expressed by the survival activity index (SAI). The morphological characters, enzyme activity, and swimming behavior of larvae on day 0 and 1 were also observed, followed by the correlation analysis between SAI. Larvae with high SAI (≥26) showed significantly higher survival on day 13 than larvae with low SAI, which confirmed that SAI is a reliable index that can be used to evaluate larval quality, similar to the former findings. The esterase activity (r = -0.713, P < 0.01), swim frequency (r = -0.735, P < 0.01) and swimming speed (r = -0.588, P < 0.05) of larvae on day 0 were significantly and negatively correlated with SAI. It was concluded that enzyme activity and behavioral characters of larvae just after parturition can be a real-time index for evaluating the larval quality of this species.
キーワード: Behavior / Enzyme activity / Larval quality / SAI / Survival
URI: http://hdl.handle.net/10069/35839
ISSN: 09199268
DOI: 10.1111/j.1444-2906.2006.01242.x
権利: © 2006 The Japanese Society of Fisheries Science. / The original publication is available at www.springerlink.com
資料タイプ: Journal Article
原稿種類: author
出現コレクション:080 学術雑誌論文

引用URI : http://hdl.handle.net/10069/35839



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