Effects of water temperature on feeding and growth of juvenile marbled flounder Pseudopleuronectes yokohamae under laboratory conditions: evaluation by group- and individual-based methods
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To determine the optimal temperature for juvenile (0 year old) marbled flounder Pseudopleuronectes yokohamae, juveniles of 40–54 mm standard length were reared at six temperature conditions in the range of 8–26 °C, using group- and individual-based methods. Growth of juveniles increased from 8 to 20 °C but decreased from 20 to 26 °C, irrespective of the rearing method used. Food intake was greatest at 20 and 24 °C compared with other temperatures, while feed conversion efficiency was greater at 20 °C than 24 °C in individual rearing. Individual rearing provided more information such as individual variations in growth and food consumption, suggesting the importance of individual-based experiments for exploring the optimal temperature for fish.
This study was partly supported by the Ministry of Agriculture, Forestry, and Fisheries of Japan.
Electronic supplementary material: The online version of this article (doi:10.1007/s12562-016-1053-1) contains supplementary material, which is available to authorized users.
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This is a post-peer-review, pre-copyedit version of an article published in Fisheries Science. The final authenticated version is available online at: https://doi.org/10.1007/s12562-016-1053-1
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Graduate School of Biosphere Science