Identifying choke species challenges for an individual demersal trawler in the North Sea, lessons from conversations and data analysis

Mortensen, Lars O.; Ulrich, Clara; Hansen, Jan Petter; Hald, Rasmus

doi:10.1016/j.marpol.2017.09.031

Cited by 37 publications

(27 citation statements)

References 13 publications

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“…Managing species complexes in mixed-stock fisheries inherently involves trade-offs for both individual fishers and agencies (Mackinson et al 2018;Mortensen et al 2018). For example, many species are caught in mixed-stock fisheries.…”

Section: Catch Levels and Rebuildingmentioning

confidence: 99%

“…The new European Common Fisheries Policy bans discarding and implements an obligation to land the entire catch. Managing species complexes in mixed-stock fisheries inherently involves trade-offs for both individual fishers and agencies (Mackinson et al 2018;Mortensen et al 2018). AFS recommends that revisions to the Act should pay attention to the role of mixed-stock fisheries and approaches to managing for "choke" species, which can restrict harvest through dynamic time-area closures and other policies (Scales et al 2017;Hazen et al 2018).…”

Section: Catch Levels and Rebuildingmentioning

confidence: 99%

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Scientific Considerations Informing Magnuson–Stevens Fishery Conservation and Management Act Reauthorization

et al. 2018

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Section: Catch Levels and Rebuildingmentioning

confidence: 99%

Section: Catch Levels and Rebuildingmentioning

confidence: 99%

Scientific Considerations Informing Magnuson–Stevens Fishery Conservation and Management Act Reauthorization

et al. 2018

View full text Add to dashboard Cite

“…The new European Common Fisheries Policy bans discarding and implements an obligation to land the entire catch. Managing species complexes in mixed-stock fi sheries inherently involves trade-offs for both individual fi shers and agencies (Mackinson et al 2018 ;Mortensen et al 2018 ). AFS recommends that revisions to the Act should pay attention to the role of mixed-stock fi sheries and approaches to managing for "choke" species, which can restrict harvest through dynamic time-area closures and other policies (Scales et al 2017 ;Hazen et al 2018 ).…”

Section: Catch Levels and Rebuildingmentioning

confidence: 99%

Fisheries Volume 43 Number 11 November 2018

2018

Fisheries

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“…Many elasmobranchs are, however, caught as bycatch, and certain fishers have claimed to see an increase in skates in recent years Silva et al, 2012). Quota restrictions for species which continue to be caught can stop vessels from fishing, even if they still have quota for their targeted species (Mortensen et al, 2018). Therefore, without good knowledge on their distributions during their different life history stages, efficiency of protection for red list species can be limited.…”

Section: Introductionmentioning

confidence: 99%

Distribution and life history trait models indicate vulnerability of skates

Elliott

Carpentier

Feunteun

et al. 2020

Progress in Oceanography

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Distribution and life history trait models indicate vulnerability of skates. Progress in Oceanography, Elsevier, 2020, 181, pp.ABSTRACT Elasmobranchs are k-strategy species with low reproduction rate and slow growth lending to increased anthropogenic vulnerability. Specific management measures to improve the conservation of elasmobranchs can be problematic due to insufficient information on their biology and ecology. Here, three sympatric skates occupying north-eastern Atlantic waters, which have differing conservation status were studied within ICES divisions 4.c, 7.d-e, 7.f-h and 8a-b and d. Fisheriesdependent data on skate bycatch and a series of environmental variables were used to model spatio-temporal differences in habitat use between the three species. Raja undulata, the undulate ray (IUCN red listed as 'Endangered') was observed to have a coastal distribution within the English Channel and the Bay of Biscay (ICES division 7.d-e and 8.a-b). Raja clavata, the thornback ray ('Near threatened'), had a broader distribution with higher presence in the eastern English Channel and the southern North Sea (ICES division 7.e and 4.c). Raja montagui, the spotted ray's probability of presence ('Least concerned') was higher 1 Corresponding author. E-mail address: sophie_elliott@yahoo.com, telephone: (+33) (0) 2 23 18 58 83 off the coast of southern Ireland (ICES division 7.g). Seasonal and life-history trait differences were also observed.From the fisheries-dependent data, wider skate distributions than previously studied were modelled. Although the species do co-occur, spatio-temporal differences between these species were observed. This study contributes to a greater understanding of skate habitat during their different life history stages, and indicates reasons for R. undulata's increased vulnerability than R. clavata and R. montagui. Information from the distribution models could be used for specific spatio-temporal management measures. Better understanding of the distribution of species can also help reduce bycatch of protected species such as R. undulata.

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Identifying choke species challenges for an individual demersal trawler in the North Sea, lessons from conversations and data analysis

Cited by 37 publications

References 13 publications

Scientific Considerations Informing Magnuson–Stevens Fishery Conservation and Management Act Reauthorization

Scientific Considerations Informing Magnuson–Stevens Fishery Conservation and Management Act Reauthorization

Fisheries Volume 43 Number 11 November 2018

Distribution and life history trait models indicate vulnerability of skates

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