Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 506733
Title Competitive interactions between two fishing fleets in the North Sea
Author(s) Sys, Klaas; Poos, Jan Jaap; Meensel, Jef van; Polet, Hans; Buysse, Jeroen
Source ICES Journal of Marine Science 73 (2016)6. - ISSN 1054-3139 - p. 1485 - 1493.
DOI https://doi.org/10.1093/icesjms/fsw008
Department(s) WIAS
IMARES Onderzoeksformatie
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Fleet dynamics - Interference competition - Landings per unit effort - Pulse trawling
Abstract

We examine whether the landing rates of Belgian beam trawlers in the Southern Bight of the North Sea were affected through competitive interactions with the Dutch beam trawler fleet and whether the development of a pulse trawler fleet has altered competitive interactions between both fleets. Effects of competition were investigated through a natural experiment based on the different weekly exploitation patterns of both fleets. Logbook data were used to fit a generalized additive mixed model for the daily landing rates of the target species sole (Solea solea) and plaice (Pleuronectes platessa). Results showed that landing rates of sole by the Belgian beam trawlers (>221 kW) from 2006 to 2013 were lower during weekdays than during weekends when the Dutch trawler fleet is in harbour, while no such an effect was found for plaice. After the development of a pulse trawler fleet in 2011, the negative weekday effect in the sole landing rates was much more pronounced in 2012 and 2013. This increased loss of efficiency during weekdays, as a result of increased competition with the Dutch trawler fleet, coincided with a reallocation of fishing effort by the Belgian beam trawler fleet.

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