Daggernose shark: an elusive species from Northern South America

Feitosa, Leonardo Manir, Martins, Ana Paula Barbosa, Lessa, Rosangela Paula Teixeira, Barbieri, Ricardo, and Nunes, Jorge Luiz Silva (2019) Daggernose shark: an elusive species from Northern South America. Fisheries, 44 (3). pp. 144-147.

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Abstract

The Daggernose Shark Isogomphodon oxyrhynchus is an endemic species of the northern coast of South America distributed from Trinidad and Tobago to Brazil's Amazon Coast. Due to increasing fishing efforts and its limited distribution range, the Daggernose Shark is one of the most endangered shark species in the world. Further threats arise from mangrove deforestation, pollution, and aquaculture caused by increasing human populations in coastal areas. The Daggernose Shark is highly associated to the turbid waters influenced by the Amazon and Orinoco estuaries. Furthermore, its morphological features associated to adaptations to these environments such as an elongated rostrum, small eyes, and long pectoral fins make it one of the most iconic shark species in the world. Finally, we report the capture of a young-of-the-year I. oxyrhynchus in a freshwater system in Northern Brazil—the first recorded in a non-marine environment.

Item ID: 61871
Item Type: Article (Scholarly Work)
ISSN: 1548-8446
Copyright Information: © 2019 American Fisheries Society
Funders: Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Date Deposited: 20 May 2020 04:11
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050211 Wildlife and Habitat Management @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 100%
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