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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Length-length and length-weight relationships of Carcharhinus falciformis and C.signatus (Carcharhinidae: Carcharhinus) caught by commercial fisheries in the Southwest Atlantic Ocean

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Author(s):
Domingues, Rodrigo R. [1] ; Caltabellotta, Fabio P. [2] ; Amorim, Alberto F. [3]
Total Authors: 3
Affiliation:
[1] Univ Estadual Paulista UNESP, Inst Biociencias Rio Claro, Ave 24-A, 1515, BR-11506900 Sao Paulo - Brazil
[2] Ctr Univ Monte Serrat, Dept Oceanog, Rua Comendador Martins, 52, Vila Mathias, BR-11030906 Sao Paulo - Brazil
[3] Inst Pesca, Agencia Paulista Agronegocio, Ave Bartolomeu de Gusmao, 192, BR-11030906 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: REGIONAL STUDIES IN MARINE SCIENCE; v. 6, p. 83-86, JUL 2016.
Web of Science Citations: 4
Abstract

Sharks of the genus Carcharhinus are captured as bycatch in longline fisheries and through different fishing gears. Due to the common practice of head and fin removal of sharks, the lack of morphometric data and weight on landings by species hinders the implementation of management measures, since they are needed to perform a stock assessment. Here, we present the length-length (LLR) and length-weight (LWR) relationships of the silky shark (n = 145) and night shark (n = 90) caught by the commercial pelagic longline fisheries in the Southwest Atlantic Ocean (22 degrees S-33 degrees S; 25 degrees W-50 degrees W) between April 2009 and August 2010. All length-length and length- weight relationships were extremely significant with the coefficient of determination (r(2)) ranging around 0.99. There were no significant differences in the regression parameters of the length-length and length-weight relationships between males and females to both species. These results represent the first reference on the LLRs and LWRs to silky shark and night shark, using the carcass length (CL-distance between the origin of the pectoral fin to the origin of the caudal fin, in cm) as the basis for all conversion factors. (C) 2016 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 09/13186-0 - Molecular identification and fishery biology of genus Carcharhinus sharks (Chondrichthyes - Carcharhiniformes): fishery management contribution to the São Paulo State
Grantee:Rodrigo Rodrigues Domingues
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 13/08675-7 - Genetic Connectivity, Phylogeography and Pelagic Sharks Conservation in the Western Atlantic Ocean
Grantee:Rodrigo Rodrigues Domingues
Support Opportunities: Scholarships in Brazil - Doctorate