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The potential of gear modifications to reduce discards of beam trawl in the southern North Sea
Gorim, D.A. (2012). The potential of gear modifications to reduce discards of beam trawl in the southern North Sea. MSc Thesis. Vrije Universiteit Brussel: Brussel. 66 pp.
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| Beschikbaar in | Auteur |
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Documenttype: Doctoraat/Thesis/Eindwerk
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| Trefwoorden |
Beam trawls (bottom)
Catching methods > Net fishing > Trawling
ANE, Noordzee [Marine Regions]
Marien/Kust |
| Author keywords |
Discards; Benthic invertebrates; Commercial fishes; Standard trawl; Experimental trawl |
| Abstract |
Discards is a major problem in most fisheries. It consists of benthic invertebrates, undersize commercial and non-commercial fishes. Benthic invertebrates are organisms which live on, and or close to the surface of the seafloor. As such they are caught by most trawl fisheries where they constitute a greater proportion of the discards. Gear technology is gaining grounds in limiting discards of some species of benthic invertebrates, commercial fishes Belgica (research vessel) and Pascin N58 (commercial vessel). Sea trials show that T90 outperforms in reducing discards of round fish. Benthic barrier and 200mm BRP significantly reduces the catch of some benthos like Pagurus, Asterias rubens and Buccinum undatum. Benthic barrier was efficient at minimizing the catch of flatfishes |
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