Abstract
All species of sawfish are listed by the International Union for the Conservation of Nature (IUCN) as endangered or critically endangered. In fact, the smalltooth sawfish Pristis pectinata, and the largetooth sawfish Pristis pristis, have been declared to be regionally and locally extinct from the US Atlantic coast and the Gulf of California, Mexico, respectively, likely due to overfishing. However, here we dispute these claims by illustrating how lack of existence of a given species within a region can be misconstrued as evidence for extinction.
Highlights
Todas as espécies de peixe-serra são qualificadas pela União Internacional para a Conservação da Natureza como ameaçadas ou criticamente ameaçadas de extinção
All species of sawfish are listed by the International Union for the Conservation of Nature (IUCN) as endangered or critically endangered
Dulvy et al (2003) declared 133 cases of marine extinctions worldwide, including these two species to be locally extinct from the Gulf of California (Mexico) and regionally extinct from the Atlantic coast of the United States
Summary
Pablo del Monte-Luna, José Luis Castro-Aguirre, Barry W. All species of sawfish are listed by the International Union for the Conservation of Nature (IUCN) as endangered or critically endangered. The smalltooth sawfish Pristis pectinata, and the largetooth sawfish Pristis pristis, have been declared to be regionally and locally extinct from the US Atlantic coast and the Gulf of California, Mexico, respectively, likely due to overfishing. All species of sawfish are listed by the International Union for the Conservation of Nature (IUCN) as endangered or critically endangered (www.iucnredlist.org). Dulvy et al (2003) declared 133 cases of marine extinctions worldwide, including these two species to be locally extinct from the Gulf of California (Mexico) and regionally extinct from the Atlantic coast of the United States
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