Fecundity of Baltic cod: temporal and spatial variation |
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| Authors: | G Kraus A Müller K Trella F W Köuster |
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| Institution: | Institute of Marine Sciences, Düsternbrooker Weg 20, D-24105, Kiel, Germany;Sea Fisheries Institute, Kollataja 1, 81-332 Gdynia, Poland |
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| Abstract: | Potential and relative potential fecundity of 701 cod Gadus morhua caught in the Bornholm Basin (ICES Sub-division 25) during 1987–1996 and 106 from the Gdansk Deep (ICES Sub-division 26) in 1995 and 1996 varied significantly between years but neither between different spawning grounds nor between different sampling months within one spawning season. Growth and water temperature are factors identified to influence the mean relative fecundity explaining 66% of the variance between years. |
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| Keywords: | intra- and inter-annual spatial variability fecundity Baltic cod |
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