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Stranding of a Risso's dolphin (Cetacea, Delphinidae) on the north-eastern coast of Brazil, with comments on its distribution and threats in the Western South Atlantic

Published online by Cambridge University Press:  20 May 2015

Gustavo Alves da Costa Toledo ,
Newton Mota Gurgel Filho ,
Jadson Luis da Silva Brito  and
Alfredo Langguth
Gustavo Alves da Costa Toledo*
Affiliation:
Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Campus Universitário, 58059-900 João Pessoa, Paraíba, Brazil
Newton Mota Gurgel Filho
Affiliation:
Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Campus Universitário, 58059-900 João Pessoa, Paraíba, Brazil
Jadson Luis da Silva Brito
Affiliation:
Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Campus Universitário, 58059-900 João Pessoa, Paraíba, Brazil
Alfredo Langguth
Affiliation:
Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Campus Universitário, 58059-900 João Pessoa, Paraíba, Brazil
*
Correspondence should be addressed to: G.A.C. Toledo, Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba. Campus Universitário, 58059-900 João Pessoa, Paraíba, Brasil email: [email protected]
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Abstract

The Risso's dolphins, Grampus griseus, are widely distributed, moderately large delphinids, inhabiting deep waters of the continental slope and outer shelf through the tropics and temperate regions. Until recently, their occurrence in the Western South Atlantic (WSA) ocean was poorly documented. This paper reports the first stranding record in the state of Paraíba (6°57′45″S 34°51′28″W), on the north-eastern coast of Brazil. Information on measurements, cause of death and the mapping of 46 records of G. griseus are provided. The data summarized in this report suggests that the distribution of G. griseus is continuous in the WSA, but with a higher frequency in colder waters further south. The available information for the WSA showed that negative interactions between Risso's dolphins and fisheries are more frequent in Brazil and need further investigation for conservation purposes.

Keywords

Grampus griseusSouth Atlantic Oceanoccurrenceconservation
Type
Review Article
Information
Marine Biodiversity Records , Volume 8 , 2015 , e66
Copyright
Copyright © Marine Biological Association of the United Kingdom 2015 

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