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      Growth and mortalities of the pink-shrimp Farfantepenaeus brasiliensis Latreille, 1970 and F. paulensis Pérez-Farfante 1967 in Southeast Brazil Translated title: Crescimento e mortalidades do camarão-rosa Farfantepenaeus brasiliensis Latreille, 1970 e F. paulensis Pérez-Farfante, 1967 no Sudeste do Brasil

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          Abstract

          From July, 1999 until July, 2001 data from the pink-shrimp Farfantepenaeus brasiliensis Latreille, 1970 and F. paulensis Pérez-Farfante, 1967 fishery were collected from trawling by the fishing fleet based in Santos/Guarujá-SP. Growth and mortalities of these species were studied. F. brasiliensis and F. paulensis have longevity of 2 years and growth estimates of L<FONT FACE=Symbol>¥</FONT> = 29.0 cm and k = 1.24 year-1 for F. brasiliensis and L<FONT FACE=Symbol>¥</FONT> = 27.5 cm and k = 1.34 year-1 for F. paulensis. Females reach bigger lengths than males in both species. Natural mortalities (M) were 1.80 and 1.90 year-1 and fishing mortalities (F) were 4.7 and 6.8 year-1 for F. brasiliensis and F. paulensis, respectively. Survival rates are S = 0.15% and 0.02% for F. brasiliensis and F. paulensis, respectively, which are usually low values for shrimps.

          Translated abstract

          De Julho de 1999 a Julho de 2001, foram coletados dados das pescarias comerciais do camarão-rosa Farfantepenaeus brasiliensis Latreille, 1970 e F. paulensis Pérez-Farfante, 1967, relativos à frota pesqueira de arrasto, sediada em Santos (SP). Estimativas dos parâmetros de crescimento e de mortalidades foram calculadas. Farafantepenaeus brasiliensis e F. paulensis são espécies de crescimento rápido e vida curta, com longevidade de 2 anos (L<FONT FACE=Symbol>¥</FONT> = 29,0 cm e k = 1,24 ano-1 para F. brasiliensis; L<FONT FACE=Symbol>¥</FONT> = 27,5 cm e k = 1,34 ano-1 para F. paulensis). As fêmeas atingem tamanhos maiores que os machos para ambas espécies. As mortalidades naturais foram estimadas em M = 1,80 ano-1 e 1,90 ano-1 e as mortalidades por pesca F = 4,7 ano-1 e 6,8 ano-1 para F. brasiliensis e F. paulensis, respectivamente. As taxas de sobrevivência foram calculadas em S = 0,15% para F. brasilensis e S = 0,02% para F. paulensis, valores usualmente baixos para camarões.

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          A simple method of resolution of a distribution into gaussian components.

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            A quantitative theory of organic growth: Inquiries on growth laws. II.

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              Some simple methods for the assessment of tropical fish stocks

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                bjb
                Brazilian Journal of Biology
                Braz. J. Biol.
                Instituto Internacional de Ecologia (São Carlos )
                1678-4375
                May 2006
                : 66
                : 2a
                : 523-536
                Affiliations
                [1 ] Projeto TAMAR Brazil
                [2 ] Universidade Estadual Paulista Brazil
                Article
                S1519-69842006000300019
                10.1590/S1519-69842006000300019
                7b7fb577-e698-4fa6-a8cc-2e3dde611900

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1519-6984&lng=en
                Categories
                BIOLOGY

                General life sciences
                tropical marine fishery,pink-shrimp,Farfantepenaeus,growth,mortalities,Brazil,pescarias marinhas industriais tropicais,camarão-rosa,crescimento,mortalidades,Brasil

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