Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservation

IntroductionLoss of biodiversity in marine ecosystems is a globally acknowledged problem. To address this and avoid extinctions, improved conservation is required to protect and restore our oceans. Elasmobranch species are considered the second most threatened vertebrate lineage, with overfishing co...

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Main Authors: Martha O’Keefe, Elizabeth G. T. Bengil, Josie L. Palmer, Damla Beton, Çiğdem Çağlar, Brendan J. Godley, Meryem Özkan, Robin T. E. Snape, Annette C. Broderick
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-10-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2023.1181437/full
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author Martha O’Keefe
Elizabeth G. T. Bengil
Elizabeth G. T. Bengil
Josie L. Palmer
Damla Beton
Çiğdem Çağlar
Brendan J. Godley
Meryem Özkan
Robin T. E. Snape
Robin T. E. Snape
Annette C. Broderick
author_facet Martha O’Keefe
Elizabeth G. T. Bengil
Elizabeth G. T. Bengil
Josie L. Palmer
Damla Beton
Çiğdem Çağlar
Brendan J. Godley
Meryem Özkan
Robin T. E. Snape
Robin T. E. Snape
Annette C. Broderick
author_sort Martha O’Keefe
collection DOAJ
description IntroductionLoss of biodiversity in marine ecosystems is a globally acknowledged problem. To address this and avoid extinctions, improved conservation is required to protect and restore our oceans. Elasmobranch species are considered the second most threatened vertebrate lineage, with overfishing considered the most important driver of declines. The Mediterranean Sea is a hotspot for elasmobranchs, with the eastern basin considered a data-poor area. MethodsThis study sought to address that deficiency, using bycatch data to assess the diversity and distribution of elasmobranch species caught as a result of commercial fishing in Northern Cyprus from 2018 to 2022. ResultsThirty-six elasmobranch species were recorded, including 24 new records for Northern Cyprus, representing 41% of all species recorded in the Mediterranean. Of these 36 species, 61% are listed on the IUCN Red List as globally threatened (Critically Endangered, Endangered or Vulnerable). Of the species recorded, 71% of sharks (n=17), and 53% of batoids (skates and rays; n=19) are listed as threatened. We present data on the distribution of captures and size classes and infer life stage from these data. DiscussionOur study demonstrates the importance of the coastal waters of Cyprus for multiple life stages of a broad range of elasmobranch species. As most elasmobranchs caught are retained for bait, subsistence or trade, our study has highlighted the need to update the regulations for this small-scale fishery, and led to a recent amendment to prohibit trade in all species listed under the Barcelona Convention.
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spelling doaj.art-18b2fa6ff3e84235bf02aaaa383fe3822023-10-31T05:42:56ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452023-10-011010.3389/fmars.2023.11814371181437Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservationMartha O’Keefe0Elizabeth G. T. Bengil1Elizabeth G. T. Bengil2Josie L. Palmer3Damla Beton4Çiğdem Çağlar5Brendan J. Godley6Meryem Özkan7Robin T. E. Snape8Robin T. E. Snape9Annette C. Broderick10Centre for Ecology and Conservation, University of Exeter, Penryn, United KingdomSociety for the Protection of Turtles, Gönyeli, CyprusCukurova University, Fisheries Faculty, Adana, TürkiyeCentre for Ecology and Conservation, University of Exeter, Penryn, United KingdomSociety for the Protection of Turtles, Gönyeli, CyprusSociety for the Protection of Turtles, Gönyeli, CyprusCentre for Ecology and Conservation, University of Exeter, Penryn, United KingdomSociety for the Protection of Turtles, Gönyeli, CyprusCentre for Ecology and Conservation, University of Exeter, Penryn, United KingdomSociety for the Protection of Turtles, Gönyeli, CyprusCentre for Ecology and Conservation, University of Exeter, Penryn, United KingdomIntroductionLoss of biodiversity in marine ecosystems is a globally acknowledged problem. To address this and avoid extinctions, improved conservation is required to protect and restore our oceans. Elasmobranch species are considered the second most threatened vertebrate lineage, with overfishing considered the most important driver of declines. The Mediterranean Sea is a hotspot for elasmobranchs, with the eastern basin considered a data-poor area. MethodsThis study sought to address that deficiency, using bycatch data to assess the diversity and distribution of elasmobranch species caught as a result of commercial fishing in Northern Cyprus from 2018 to 2022. ResultsThirty-six elasmobranch species were recorded, including 24 new records for Northern Cyprus, representing 41% of all species recorded in the Mediterranean. Of these 36 species, 61% are listed on the IUCN Red List as globally threatened (Critically Endangered, Endangered or Vulnerable). Of the species recorded, 71% of sharks (n=17), and 53% of batoids (skates and rays; n=19) are listed as threatened. We present data on the distribution of captures and size classes and infer life stage from these data. DiscussionOur study demonstrates the importance of the coastal waters of Cyprus for multiple life stages of a broad range of elasmobranch species. As most elasmobranchs caught are retained for bait, subsistence or trade, our study has highlighted the need to update the regulations for this small-scale fishery, and led to a recent amendment to prohibit trade in all species listed under the Barcelona Convention.https://www.frontiersin.org/articles/10.3389/fmars.2023.1181437/fullsharkbatoidskateraymediterraneanfisheries
spellingShingle Martha O’Keefe
Elizabeth G. T. Bengil
Elizabeth G. T. Bengil
Josie L. Palmer
Damla Beton
Çiğdem Çağlar
Brendan J. Godley
Meryem Özkan
Robin T. E. Snape
Robin T. E. Snape
Annette C. Broderick
Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservation
Frontiers in Marine Science
shark
batoid
skate
ray
mediterranean
fisheries
title Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservation
title_full Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservation
title_fullStr Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservation
title_full_unstemmed Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservation
title_short Diversity and distribution of elasmobranchs in the coastal waters of Cyprus: using bycatch data to inform management and conservation
title_sort diversity and distribution of elasmobranchs in the coastal waters of cyprus using bycatch data to inform management and conservation
topic shark
batoid
skate
ray
mediterranean
fisheries
url https://www.frontiersin.org/articles/10.3389/fmars.2023.1181437/full
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