Laichen von Dorschen in Gefangenschaft. Teil 2: Eiqualität und Befruchtungsrate

Bleil, Martina and Oeberst, Rainer (1999) Laichen von Dorschen in Gefangenschaft. Teil 2: Eiqualität und Befruchtungsrate. Informationen für die Fischwirtschaft aus der Fischereiforschung, 46(1), pp. 10-16.

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The quality of eggs spawned by cod of the western Baltic Sea, which were kept in captivity, varies during spawning season. These changes were independent of total length, weight and age of the parental individuals. Diameter, dry weight and fertilisation rate of the spawned eggs decreased during the spawning activities. An influence of water temperature and salinity on the variability of these parameters could not be detected. Diameter, weight and fertilisation rate were, however, influenced by the stage of the spawning process of the parental individuals. These results point out that within the first half of the spawning season not only the largest portion of the fertilised eggs was spawned but also those eggs with the best chance of a successful development.

Item Type: Article
Title: Laichen von Dorschen in Gefangenschaft. Teil 2: Eiqualität und Befruchtungsrate
Alternative Title: Spawning of cod in captivity. Part 2: Egg quality and rate of fertilisation of Baltic cod
Personal Creator/Author:
Refereed: No
Journal or Publication Title: Informationen für die Fischwirtschaft aus der Fischereiforschung
Volume: 46
Number: 1
Page Range: pp. 10-16
Date: 1999
ISSN: 1437-5842
Contact Email Address:
Issuing Agency: Bundesforschungsanstalt für Fischerei
Additional Information: Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery research in 2010.
Uncontrolled Keywords: reproduction; embryonic development; spawning activity; brood stock; fertilization; Baltic cod
Subjects: Ecology
Item ID: 3272
Depositing User: Horst Bahl
Date Deposited: 07 May 2010 16:59
Last Modified: 10 May 2012 13:50
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