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The spatial ecology of Rajidae from mark-recapture tagging and its implications for assessing fishery interactions and efficacy of Marine Protected Areas

The spatial ecology of Rajidae from mark-recapture tagging and its implications for assessing fishery interactions and efficacy of Marine Protected Areas
The spatial ecology of Rajidae from mark-recapture tagging and its implications for assessing fishery interactions and efficacy of Marine Protected Areas
Often the ecology of a commercially fished species and the behaviour of the fishers are inextricably linked. An understanding of both species ecology and fisher behaviour are therefore fundamental for effective fisheries management. In Europe, Rajidae are commercially fished species that are vulnerable to overfishing, have historically been grouped in landings data and declines have been reported to the point of local extinction in some species. Management of these species is therefore important, however an understanding of species ecology and the way they interact with the fishery is lacking. Here we investigate how the differing ecology of four species affects interactions with the fishery by considering gear types, Marine Protected Areas, location of capture and geographic displacements. Our results demonstrate that the four species interacted differently with the fishery, for example Raja clavata were more commonly captured by static nets (69 % of recaptures) and Raja brachyura more commonly by trawlers (77 %). There were clear differences in the location of capture, depths and displacements of the four species resulting in differing interactions with existing management in the form of Marine Protected Areas. For example 53 % of R. clavata recaptures were within the boundaries of an MPA compared to 18 % for R. brachyura. These results provide important differences among species that are generally grouped by current management, emphasising the need for further species specific research to ensure effective management.
Fisher interactions, Raja, Ray, Skate, Tagging
0165-7836
1-13
Simpson, Samantha J.
362aed0b-bfb2-418e-8e3c-e36fa04cfcab
Humphries, Nicolas E.
9246d06a-396a-4c05-9721-dc340e75a4d0
Sims, David W.
7234b444-25e2-4bd5-8348-a1c142d0cf81
Simpson, Samantha J.
362aed0b-bfb2-418e-8e3c-e36fa04cfcab
Humphries, Nicolas E.
9246d06a-396a-4c05-9721-dc340e75a4d0
Sims, David W.
7234b444-25e2-4bd5-8348-a1c142d0cf81

Simpson, Samantha J., Humphries, Nicolas E. and Sims, David W. (2020) The spatial ecology of Rajidae from mark-recapture tagging and its implications for assessing fishery interactions and efficacy of Marine Protected Areas. Fisheries Research, 228, 1-13, [105569]. (doi:10.1016/j.fishres.2020.105569).

Record type: Article

Abstract

Often the ecology of a commercially fished species and the behaviour of the fishers are inextricably linked. An understanding of both species ecology and fisher behaviour are therefore fundamental for effective fisheries management. In Europe, Rajidae are commercially fished species that are vulnerable to overfishing, have historically been grouped in landings data and declines have been reported to the point of local extinction in some species. Management of these species is therefore important, however an understanding of species ecology and the way they interact with the fishery is lacking. Here we investigate how the differing ecology of four species affects interactions with the fishery by considering gear types, Marine Protected Areas, location of capture and geographic displacements. Our results demonstrate that the four species interacted differently with the fishery, for example Raja clavata were more commonly captured by static nets (69 % of recaptures) and Raja brachyura more commonly by trawlers (77 %). There were clear differences in the location of capture, depths and displacements of the four species resulting in differing interactions with existing management in the form of Marine Protected Areas. For example 53 % of R. clavata recaptures were within the boundaries of an MPA compared to 18 % for R. brachyura. These results provide important differences among species that are generally grouped by current management, emphasising the need for further species specific research to ensure effective management.

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More information

Accepted/In Press date: 22 March 2020
e-pub ahead of print date: 7 April 2020
Published date: 1 August 2020
Keywords: Fisher interactions, Raja, Ray, Skate, Tagging

Identifiers

Local EPrints ID: 441837
URI: http://eprints.soton.ac.uk/id/eprint/441837
ISSN: 0165-7836
PURE UUID: dd3540a4-32e9-4dfa-b33f-29cd673455e1
ORCID for David W. Sims: ORCID iD orcid.org/0000-0002-0916-7363

Catalogue record

Date deposited: 29 Jun 2020 16:36
Last modified: 19 Jun 2024 01:45

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Contributors

Author: Samantha J. Simpson
Author: Nicolas E. Humphries
Author: David W. Sims ORCID iD

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