Open WL Archief (OWA)

Over het archief

Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

Basisinformatie over ‘Open Access to scholarly information'.

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

Codend and whole trawl selectivity of a shrimp beam trawl used in the North Sea Polet, H. (2000). Codend and whole trawl selectivity of a shrimp beam trawl used in the North Sea. Fish. Res. 48(2): 167-183. dx.doi.org/10.1016/S0165-7836(00)00125-9 In: Fisheries Research. Elsevier: Amsterdam. ISSN 0165-7836; e-ISSN 1872-6763, meer

---

Beschikbaar in	Auteur
VLIZ: Open access 263033 [ download pdf ]

---

Trefwoorden

Analytical techniques > Spectroscopic techniques > Absorption spectroscopy By catch Codends Fisheries > Shellfish fisheries > Crustacean fisheries > Shrimp fisheries Nets > Fishing gear > Fishing nets > Trawl nets > Bottom trawls Crangon crangon (Linnaeus, 1758) [WoRMS] ANE, Noordzee [Marine Regions]

Author keywords

codend selectivity; whole trawl selectivity; Crangon crangon

---

Auteur		Top
Polet, H., meer

---

Abstract

In preparation of a by-catch reduction program for the Belgian brown shrimp fishery, a study was carried out on the codend and whole trawl selectivity of the beam trawl widely used in this fishery. The codend cover technique was used to determine the codend selectivity, whereas the whole trawl selectivity was estimated using small mesh pockets attached to several positions on the body of the net. Codend selectivity for shrimp proved to be very variable and was significantly influenced by clogging of the meshes, catch volume and state of the sea. The L50 for shrimp, for all hauls combined, was 39.4 mm and the selection factor 1.82 for a mesh size of 21.7 mm. The selection range was 11.6 mm. The selectivity of the net body was quite important and allowed more shrimps to escape than the codend did. It was mainly the rounded lateral part of the belly that contributed to this selectivity. Due to the small mesh size, the codend selectivity for flatfish was very poor. The selectivity of the net body for flatfish was negligible.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteur

IMIS is ontwikkeld en wordt gehost door het VLIZ.