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Winterfischerei auf Garnelen: die Anteile der europäischen Garnelenflotten an der Anlandungen von Crangon crangon im Zeitraum Januar bis März der Jahre 1990 bis 1999 = Winter fishery on brown shrimp: the portion of European brown shrimp fleets of the landings of Crangon crangon from January to March in the years 1990 to 1999 Neudecker, T. (2001). Winterfischerei auf Garnelen: die Anteile der europäischen Garnelenflotten an der Anlandungen von Crangon crangon im Zeitraum Januar bis März der Jahre 1990 bis 1999 = Winter fishery on brown shrimp: the portion of European brown shrimp fleets of the landings of Crangon crangon from January to March in the years 1990 to 1999. Inf. Fischwirtsch. Fischereiforsch. 48(2): 62-65 In: Informationen für die Fischwirtschaft. Bundesforschungsanstalt für Fischerei: Hamburg. ISSN 0020-0344

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Beschikbaar in	Auteur
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Marien/Kust

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Auteur		Top
Neudecker, T.

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Abstract

"Winter fishery" on brown shrimp does not imply a special type of fishery. It merely means the continuation of the standard fishing procedure of parts of the fleet during wintertime when the majority of the mostly smaller vessels stay in harbour due to generally unfavourable weather conditions for their activity. During 1990 to 1999 mean European wide landings in January and February summed up to 854 tonnes making up to only 4 % of the mean annual landings (21 805 t). While German vessels landed 0.7 % (68.7 t) of their mean annual landings during that period, the other countries caught about 7% of their individual, mean annual landings at the same time. The Netherlands and Denmark contributed highest tonnages of 580 and 110 tonnes, respectively, to the total European landings, making up 81 % of them. As about 70% of brown shrimp may carry eggs in January, the winter fishery took a mean total of about 2.15 x 1012 brown shrimp eggs out of the stocks in that period annually. As there is no reliable assessment available concerning the brown shrimp stocks, it is despite of these high losses of eggs not possible to trace a negative effect of the winter fishery in scientific terms. However, precautional catch reductions in winter would be in favour of higher survival rates of eggs, which are the carrying source for the recruitment of brown shrimp stocks and catches in forthcoming summer and autumn seasons according to Dutch investigations.

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