Saisonale und regionale Unterschiede zwischen den 0-Gruppen-Schollen-Discards in der deutschen Garnelenfischerei

Purps, Martin and Damm, Ulrich (2001) Saisonale und regionale Unterschiede zwischen den 0-Gruppen-Schollen-Discards in der deutschen Garnelenfischerei. Informationen für die Fischwirtschaft aus der Fischereiforschung, 48(3), pp. 114-121.

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Official URL: http://aquacomm.fcla.edu/3190

Abstract

Shrimping in the waddensea is frequently considered to significantly reduce the numbers of juvenile plaice . This investigation aims to reveal the seasonal and regional differences regarding discards in the German waddensea and sets the results in relation to the bycatch projects with German participation. Furthermore, methodological aspects are evaluated to find possible effects on the estimation of the netted numbers. The bycatch problem exists predominantly throughout the summer season, but high catches of juvenile plaice can occur occasionally in autumn. The discard issue seems to be most important in the East Frisian region, while the Elbe and Schleswig-Holstein areas are of lesser importance. Considering the distribution of the fish in the environment is as indispensable as sampling of the shrimp fleet with optimum representativity. There are indices that the contribution of the Dutch shrimp fleet to the discard mortality of juvenile plaice was underestimated in the recent past. A combination of time and area closures as restrictions in combination with the extensive application of selective gears could possibly gain the best protection for the affected species.

Item Type: Article
Title: Saisonale und regionale Unterschiede zwischen den 0-Gruppen-Schollen-Discards in der deutschen Garnelenfischerei
Personal Creator/Author:
CreatorsEmail
Purps, Martin
Damm, Ulrichulrich.damm@vti.bund.de
Refereed: No
Journal or Publication Title: Informationen für die Fischwirtschaft aus der Fischereiforschung
Volume: 48
Number: 3
Page Range: pp. 114-121
Date: 2001
ISSN: 1437-5842
Contact Email Address: ulrich.damm@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: bycatch; recruitment; landings; spawning areas; nursery areas; North Sea
Subjects: Fisheries
Item ID: 3190
Depositing User: Horst Bahl
Date Deposited: 17 Apr 2010 12:34
Last Modified: 10 Nov 2012 14:30
URI: http://aquaticcommons.org/id/eprint/3190

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