Author:
Zuccolo Veronica,Rego Fernanda Moreira,Hughes Emily,Griffiths Andrew M.
Abstract
Abstract
Background
Elasmobranch populations are declining, predominantly driven by overfishing, and over a third of global sharks, rays, and chimeras are estimated to be threatened with extinction. In terms of trade, Brazil is ranked the eleventh-largest shark producer and the top importer of shark meat in the world. Research has shown that elasmobranchs are sold in Brazil under the name “cação” (a generic designation for cartilaginous fish) to overcome consumer resistance.
Methodology and results
This study used DNA barcoding to investigate the sale of sharks in the State of São Paulo during the COVID-19 lockdown. A total of 35 samples of “cação” were analysed, revealing six different shark species on sale, including Carcharhinus falciformis, Carcharhinus signatus, Carcharias taurus, Isurus oxyrinchus, and Isurus paucus, that are threatened with extinction according to the IUCN red list. This study demonstrates that vulnerable elasmobranchs are being commercialised under the label “cação” in the São Paulo State and Brazil.
Conclusions
Comparison of shark products traded before and during the COVID-19 pandemic showed no significant difference, suggesting lockdown did not affect patterns of species commercialisation. Effective fisheries and sale monitoring, correct product labelling legislation and increased consumer awareness that “cação” is shark are needed for appropriate conservation and management of shark populations in Brazil.
Funder
ExeterMarine, University of Exeter, UK
Publisher
Springer Science and Business Media LLC
Subject
Genetics,Molecular Biology,General Medicine
Cited by
1 articles.
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