Effects of temperature and salinity on embryonic development of turbot (Scophthalmus maximus L.) from the North Sea, and comparisons with Baltic populations |
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| Authors: | P Karås V Klingsheim |
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| Institution: | 1. National Board of Fisheries, Institute of Coastal Research, Gamla Slipv?gen 19, S-74071, ?regrund, Sweden
2. Tinfos Aqua AS, P.O. Box 40, N-4484, ?yestranda, Norway
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| Abstract: | Optimum temperature and salinity conditions for viable hatch were studied for turbot (Scophthalmus maximus L.) from the North Sea. Temperatures ranging from 6 to 22°C and salinities from 5 to 35‰ were used. Optimum conditions were
observed to be between 12 and 18°C at salinities between 20 and 35‰. This contrasted with corresponding data for turbot from
the southern Baltic proper, according to which survival sharply decreased in temperatures below 14°C and was high in salinities
of 10 to 15‰. Thus, it is concluded that Baltic and Atlantic turbot should be considered as different races. |
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