Keine überdurchschnittlichen Nachwuchsjahrgänge bei den Nutzfischen der Nordsee

Dornheim, Holger. and Stein, Manfred (2001) Keine überdurchschnittlichen Nachwuchsjahrgänge bei den Nutzfischen der Nordsee. Informationen für die Fischwirtschaft aus der Fischereiforschung, 48(1), pp. 12-18.

PDF (The document's language is Deutsch .) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB) | Preview
Official URL:


In January/February 2001, Germany participated with “Walther Herwig III” in the International Bottom Trawl Survey (IBTS) of ICES by contributing 70 half hour tows with the Grande Ouverture Verticale Bottom Trawl (GOV), 78 hydrographic stations, and 88 catches with the Method-Isaac-Kidd net (MIK), mostly in the central and northern North Sea. In total, 368 fishing stations by means of the GOV were covered by the international fleet. Preliminary results indicate that only indices for herring, whiting, and – to some degree – haddock are in the long-term mean. In contrast, the index for cod gives reason to serious concern. In addition, indices for both mackerel and Norway pout do not show any signs for an increasing strength of these stocks. Oceanographic data show that in comparison with the data from 1995 onwards actual temperatures and salinities are in the normal range. However, mean water temperatures of this short period are about more than a half degree above the long-term means of the period 1961 to 1990.

Item Type: Article
Title: Keine überdurchschnittlichen Nachwuchsjahrgänge bei den Nutzfischen der Nordsee
Alternative Title: No outstanding youngest year-classes of commerically important fish species in the North Sea
Personal Creator/Author:
Dornheim, Holger.
Refereed: No
Journal or Publication Title: Informationen für die Fischwirtschaft aus der Fischereiforschung
Volume: 48
Number: 1
Page Range: pp. 12-18
Date: 2001
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: recruitment; commercial species; Kabeljau; Schellfisch; Wittling; Stintdorsch; Hering; Sprotte; Hydrographie; hydrographic data
Subjects: Fisheries
Item ID: 3178
Depositing User: Horst Bahl
Date Deposited: 17 Apr 2010 12:36
Last Modified: 10 Nov 2012 14:15
Related URLs:

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...