Energy and ration requirements of fiathead sole ( Hippoglossoides elassodon Jordan and Gilbert 1880) based on energy consumption and growth
In fiathead sole ( Hippoglossoides elassodon ) growth was linearly related to energy consumption (J g−1 day−1 ) at 4°C by the following equation: growth (%bw day−1) =0.006 (consumption J g−1 ) −0.130; r2 =0.80. Growth was independent of size for fish between 1 and 350g when growth was expressed as a...
| Published in: | ICES Journal of Marine Science |
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| Main Authors: | , , |
| Format: | Text |
| Language: | English |
| Published: |
Oxford University Press
1992
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| Subjects: | |
| Online Access: | http://icesjms.oxfordjournals.org/cgi/content/short/49/4/413 https://doi.org/10.1093/icesjms/49.4.413 |
| Summary: | In fiathead sole ( Hippoglossoides elassodon ) growth was linearly related to energy consumption (J g−1 day−1 ) at 4°C by the following equation: growth (%bw day−1) =0.006 (consumption J g−1 ) −0.130; r2 =0.80. Growth was independent of size for fish between 1 and 350g when growth was expressed as a function of consumption in Jg−1 day−1. Maintenance ration determined in feeding - growth experiments was 21.7 J g−1 day −1 at 4.0°C. Minimum estimates for daily ration to achieve growth rates observed in the Bering Sea were ∼0.4 to 6.2%bw day−1, depending on fish size and prey energy content. These rations are three to 50 times higher than previous existing consumption estimates but well within the capacity of the species. |
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