Growth parameters and mortality rate of the Scomber japonicus peruanus (Jordan & Hubb, 1925) along the Peruvian coast, South Pacific


Autoria(s): CARAMANTIN-SORIANO, Hilda; VEGA-PEREZ, Luz Amelia; NIQUEN, Miguel
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

20/10/2012

20/10/2012

2008

Resumo

The growth parameters and the mortality rates of the Scomber japonicus peruanus (Chub mackerel) were studied based on monthly data of frequency of fork length classes obtained from commercial landings off the Peruvian coast from 1996 to 1998. The asymptotic body length and growth rate values obtained by the ELEFAN I (Electronic Length Frequency Analysis) ranged from 40.20 cm to 42.20 cm and from 0.38 to 0.39, respectively. The oscillation amplitude was 0.60; the Winter point values varied from 0.50 to 0.60 and the performance index from 2.79 to 2.84. The total mortality rate of the Chub mackerel obtained by the linearized catch curve oscillated between 1.68 and 3.35. The rate of fishing mortality varied from 1.16 to 2.78 and the exploitation rate from 0.68 to 0.84. The annual rate of natural mortality estimated by the Pauly`s method ranged from 0.52 to 0.53. The results obtained allow us to conclude that the longevity of the Chub mackerel was slightly over seven years.

National Council for the Development of Science and Technology (CNPq)[N 140023/03-8)]

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Identificador

BRAZILIAN JOURNAL OF OCEANOGRAPHY, v.56, n.3, p.201-210, 2008

1679-8759

http://producao.usp.br/handle/BDPI/31987

http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000259751700005&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord

Idioma(s)

eng

Publicador

INST OCEANOGRAFICO, UNIV SAO PAULO

Relação

Brazilian Journal of Oceanography

Direitos

closedAccess

Copyright INST OCEANOGRAFICO, UNIV SAO PAULO

Palavras-Chave #Scombridae #Chub mackerel #growth #mortality rate #South-Pacific #TEMPERATURE-DEPENDENT GROWTH #NATURAL MORTALITY #AGE VALIDATION #FISHERIES #GULF #LINNAEUS #ANCHOVY #BIOLOGY #PISCES #WATERS #Marine & Freshwater Biology #Oceanography
Tipo

article

original article

publishedVersion