Amy Garbett
A holistic and comprehensive data approach validates the distribution of the critically endangered flapper skate (Dipturus intermedius)
Garbett, Amy; Loca, Sophie L.; Barreau, Thomas; Biscoito, Manuel; Bradley, Caroline; Breen, Joe; Clarke, Maurice; Ellis, Jim R.; Griffiths, Andrew M.; Hannon, Gary; Jakobsdóttir, Klara; Junge, Claudia; Lynghammar, Arve; McCloskey, Matthew; Minos, George; Phillips, Natasha D.; Prodöhl, Paulo A.; Roche, William; Iglésias, Samuel P.; Thorburn, James; Collins, Patrick C.
Authors
Sophie L. Loca
Thomas Barreau
Manuel Biscoito
Caroline Bradley
Joe Breen
Maurice Clarke
Jim R. Ellis
Andrew M. Griffiths
Gary Hannon
Klara Jakobsdóttir
Claudia Junge
Arve Lynghammar
Matthew McCloskey
George Minos
Natasha D. Phillips
Paulo A. Prodöhl
William Roche
Samuel P. Iglésias
Dr James Thorburn J.Thorburn2@napier.ac.uk
Associate Professor
Patrick C. Collins
Abstract
Morphological similarities between skates of the genus Dipturus in the north-eastern Atlantic and Mediterranean have resulted in longstanding confusion, misidentification and misreporting. Current evidence indicates that the common skate is best explained as two species, the flapper skate (Dipturus intermedius) and the common blue skate (D. batis). However, some management and conservation initiatives developed prior to the separation continue to refer to common skate (as ‘D. batis’). This taxonomic uncertainty can lead to errors in estimating population viability, distribution range, and impact on fisheries management and conservation status. Here, we demonstrate how a concerted taxonomic approach, using molecular data and a combination of survey, angler and fisheries data, in addition to expert witness statements, can be used to build a higher resolution picture of the current distribution of D. intermedius. Collated data indicate that flapper skate has a more constrained distribution compared to the perceived distribution of the ‘common skate’, with most observations recorded from Norway and the western and northern seaboards of Ireland and Scotland, with occasional specimens from Portugal and the Azores. Overall, the revised spatial distribution of D. intermedius has significantly reduced the extant range of the species, indicating a possibly fragmented distribution range.
Journal Article Type | Article |
---|---|
Acceptance Date | May 24, 2023 |
Online Publication Date | Jun 14, 2023 |
Publication Date | Sep 23, 2023 |
Deposit Date | Jul 21, 2023 |
Publicly Available Date | Jul 21, 2023 |
Journal | Journal of Fish Biology |
Print ISSN | 0022-1112 |
Electronic ISSN | 1095-8649 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 103 |
Issue | 3 |
Pages | 516-528 |
DOI | https://doi.org/10.1111/jfb.15466 |
Keywords | critically endangered, Dipturus cf. intermedia, elasmobranchs, genetics, IUCN, range |
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A holistic and comprehensive data approach validates the distribution of the critically endangered flapper skate (Dipturus intermedius)
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Publisher Licence URL
http://creativecommons.org/licenses/by-nc-nd/4.0/
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