Begrenzung des Fischereiaufwandes oder Erhöhung der Mindestmaschenöffnung – Ein Vergleich der Alternativen bei der Dorschfischerei in der Ostsee

Bethke, Eckhard (2006) Begrenzung des Fischereiaufwandes oder Erhöhung der Mindestmaschenöffnung – Ein Vergleich der Alternativen bei der Dorschfischerei in der Ostsee. Informationen aus der Fischereiforschung = Information on Fishery Research, 53(1), pp. 13-22. DOI: 10.3220/Infn53_13-22_2006

[img]
Preview
PDF (The document's language is Deutsch .) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (557Kb) | Preview
Official URL: http://aquacomm.fcla.edu/2966/

Abstract

The basis for a long-term profitable fishery is a precautionary and environment-compatible use of fish stocks. The fishery management presently models the exploitation through the parameters of fishing mortality and the age at first capture. These two parameters are translated into the technical measures of fishing effort and mesh openings and quotas, which are then used in practice for controlling the fishery. Stock protection can be achieved by reducing the fishing effort, by assigning smaller quotas, by reducing the number of days at sea, or by increasing the mesh opening. The respective protection measures have different effects on the development of the stocks but also on the revenue obtained by the fishery. These alternatives have been examined taking as an example the cod stock in the western Baltic. The optimization goal was the maximization of profit observing at the same time the prerequisites for stock protection according to the precaution approach. For these calculations the same models and data have been used as are beeing used in the stock management of the ACFM of ICES. The response of altered technical measures to the recruitment of cod stock was considered, and a proposal to overcome overfishing of cod in the western Baltic Sea was derived.

Item Type: Article
Title: Begrenzung des Fischereiaufwandes oder Erhöhung der Mindestmaschenöffnung – Ein Vergleich der Alternativen bei der Dorschfischerei in der Ostsee
Personal Creator/Author:
CreatorsEmail
Bethke, Eckhardeckhard.bethke@vti.bund.de
Refereed: No
Journal or Publication Title: Informationen aus der Fischereiforschung = Information on Fishery Research
Volume: 53
Number: 1
Page Range: pp. 13-22
Date: 2006
ISSN: 1861-2164
Contact Email Address: eckhard.bethke@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 Fishery Research in 2010. Johann Heinrich von Thünen-Institut, Institut für Seefischerei
Uncontrolled Keywords: modelling; sustainable fishery; Gadus morhua; stock management; recruitment; technical measures; Baltic Sea; cod
Subjects: Management
Fisheries
Item ID: 2966
Depositing User: Horst Bahl
Date Deposited: 09 Mar 2010 14:19
Last Modified: 29 Sep 2011 18:05
URI: http://aquaticcommons.org/id/eprint/2966

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...