Two thirds of species in a global shark fin trade hub are threatened with extinction: Conservation potential of international trade regulations for coastal sharks

One third of chondrichthyan species (sharks, rays, and chimeras) are threatened with extinction, mainly due to unsustainable fishing. Large accessible international markets for meat and luxury products like dried fins can help drive overfishing by encouraging targeted capture or retention of high‐va...

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Vydáno v:Conservation letters Ročník 15; číslo 5
Hlavní autoři: Cardeñosa, Diego, Shea, Stanley K., Zhang, Huarong, Fischer, Gunter A., Simpfendorfer, Colin A., Chapman, Demian D.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Washington John Wiley & Sons, Inc 01.09.2022
Wiley
Témata:
Chimeras
China
Chondrichthyes
CITES
Conservation
Endangered & extinct species
exports
extinction
Fins
Fisheries
Fisheries management
Fishing communities
Geographical distribution
governance
Hong Kong
International regulations
international shark trade
International trade
management
markets
meat
Overfishing
Regulations
Retention
risk
shark conservation
Sharks
Species composition
species diversity
Species extinction
Threatened species
Hong Kong China
China
ISSN:1755-263X, 1755-263X
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Popis
Shrnutí:One third of chondrichthyan species (sharks, rays, and chimeras) are threatened with extinction, mainly due to unsustainable fishing. Large accessible international markets for meat and luxury products like dried fins can help drive overfishing by encouraging targeted capture or retention of high‐value export species. If this is common, then species in international trade could have heightened extinction risk. Here, we examined the species composition of the Hong Kong shark fin market from 2014 to 2018, finding that traded species disproportionately occur in threatened categories (70.9%) and all premium value species are threatened. A small number of cosmopolitan species dominate the trade, but noncosmopolitan coastal species are still traded at concerning levels given their limited distribution. These coastal species are not generally subject to retention prohibitions, fisheries management, or international trade regulations and without management many could become extinct. The conservation potential of international trade regulations alone for coastal chondrichthyans depends on the extent to which overfishing is driven by export markets; socioeconomic studies of coastal fishing communities are needed to make this determination. Nonetheless, adding international trade regulations for more coastal shark species that are in the fin trade could prompt broad engagement with overfishing in nations lacking effective management.
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ISSN:1755-263X
1755-263X
DOI:10.1111/conl.12910