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- W2216308640 abstract "Macrobrachium amazonicum e um camarao nativo vastamente distribuido em bacias da America do Sul, largamente explorada por pescadores artesanais no Norte e Nordeste do Brasil e com grande potencial para aquicultura. Este estudo teve como objetivo analisar a biologia da populacao, com enfase na razao sexual, distribuicao de frequencia de tamanho e descrever as equacoes matematicas referentes ao crescimento relativo. Os especimes foram analisados em termos de estrutura da populacao, razao sexual, distribuicao de frequencia de tamanho, recrutamento e o crescimento relativo sendo comparado por sexo e estacoes. Um numero de 5.179 (2,977 femeas e 2.192 machos) foram coletados mensalmente, utilizando 20 matapis. A proporcao entre os sexos em ambas as areas foi favoravel as femeas com 1:1,36 na Ilha de Santana e 1:1,41 em mazagao Velho. A distribuicao mensal de frequencia absoluta de juvenis, machos e femeas adultas variou de acordo com a estacao nas duas areas estudadas. As femeas adultas foram mais abundantes no periodo mais chuvoso; enquanto na estacao menos chuvosa os machos e femeas adultas foram igualmente abundantes. Na Ilha de Santana, as femeas foram significativamente maiores que os machos, enquanto em Mazagao Velho os tamanhos foram semelhantes entre os sexos. As equacoes de regressao aplicada aos dados demonstram alometria positiva em todas as relacoes, com r² mais de 0,94 em ambos os sexos e locais. Palavras-chave: Relacoes morfometricas, razao sexual, matapi." @default.
- W2216308640 created "2016-06-24" @default.
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- W2216308640 date "2015-06-30" @default.
- W2216308640 modified "2023-10-18" @default.
- W2216308640 title "Population Structure and Relative Growth of Freshwater Prawn Macrobrachium amazonicum (Heller, 1862) (Crustacea, Palaemonidae) in Two Regions of the State of Amapá, Amazon River Mouth, Brazil" @default.
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- W2216308640 doi "https://doi.org/10.18561/2179-5746/biotaamazonia.v5n2p52-57" @default.
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