Welche Faktoren beeinflussen die Stärke der Dorsch-Jahresklassen?

Oeberst, Rainer and Bleil, Martina (2000) Welche Faktoren beeinflussen die Stärke der Dorsch-Jahresklassen? Informationen für die Fischwirtschaft aus der Fischereiforschung, 47(1), pp. 31-37.

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Official URL: http://aquacomm.fcla.edu/3238

Abstract

In the previous years extensive investigations were carried out concerning the reproduction biology of cod in the Baltic Sea. The analyses showed that the year class strength of the eastern Baltic cod stock is decisively determined by the bad oxygen conditions during the spawning season in the summer and by sprat as predator of the cod eggs. In the western Baltic Sea these factors have no importance. The year classes are mainly determined by the strong variations of the portions of female cods, which participated in the spawning activities in the region. The individuals within the length range from 35 cm to 45 cm have a special importance at this time, caused by the actual age structure of the cod stock.

Item Type: Article
Title: Welche Faktoren beeinflussen die Stärke der Dorsch-Jahresklassen?
Personal Creator/Author:
CreatorsEmail
Oeberst, Rainerrainer.oeberst@vti.bund.de
Bleil, Martinamartina.bleil@vti.bund.de
Refereed: No
Journal or Publication Title: Informationen für die Fischwirtschaft aus der Fischereiforschung
Volume: 47
Number: 1
Page Range: pp. 31-37
Date: 2000
ISSN: 1437-5842
Contact Email Address: rainer.oeberst@vti.bund.de
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: stock management; stock assessment; population fecundity; Bestandsmanagement; Umgebungsbedingungen; environmental conditions; cod
Subjects: Management
Fisheries
Item ID: 3238
Depositing User: Horst Bahl
Date Deposited: 07 May 2010 17:17
Last Modified: 10 Nov 2012 17:21
URI: http://aquaticcommons.org/id/eprint/3238

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