Escape, discard, and landing probability of Nephrops norvegicus in the Mediterranean Sea creel fishery

Size selection in creel fishery consists of two processes: the first taking place in the creel on the seabed and the second made by the fisher on the vessel. However, no study has ever considered both processes when assessing the size selection in creel fisheries. This study presents a framework for...

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Bibliographic Details
Published in:Canadian journal of fisheries and aquatic sciences 2023-04, Vol.80 (4), p.719-731
Main Authors: Masanovic, Marina, Herrmann, Bent, Brcic, Jure
Format: Article
Language:English
Subjects:
Behavior
Decapoda (Crustacea)
Environmental aspects
Fisheries
Fishery management
Lobsters
Methods
Nephrops norvegicus
Ocean floor
Physiological aspects
Vessels
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Summary:Size selection in creel fishery consists of two processes: the first taking place in the creel on the seabed and the second made by the fisher on the vessel. However, no study has ever considered both processes when assessing the size selection in creel fisheries. This study presents a framework for including both and demonstrates it to predict the effect of mesh size and shape on the creel fishery targeting the Norway lobster (Nephrops norvegicus) in the Mediterranean Sea. For this specific fishery, we demonstrate that both processes play a role in the overall size selection. Furthermore, we predict an optimal creel mesh size, which potentially eliminates the second process taking place on the vessel, while maintaining high efficiency for the first process on the seabed for the targeted sizes of Nephrops. The approach here presented can be also applied to other creel fisheries.
ISSN:0706-652X
1205-7533
1205-7533
DOI:10.1139/cjfas-2022-0190