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Revista Brasileira de Engenharia de Pesca

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128<br />

Rev. Bras. Enga. <strong>Pesca</strong> 2[1]<br />

ANÁLISE ESTATÍSTICA DAS VARIÁVEIS DE CULTIVO DO<br />

CAMARÃO-CINZA Litopenaeus vannamei (BOONE, 1931)<br />

Bruno Leonardo da Silva SANTOS (brunopesca@hotmail.com);<br />

Paulo <strong>de</strong> Paula MENDES (paulo_ufrpe@yahoo.com.br)<br />

Departamento <strong>de</strong> <strong>Pesca</strong> e Aqüicultura/UFRPE.<br />

RESUMO<br />

Foram utilizados 53 dados <strong>de</strong> cultivos <strong>de</strong> uma fazenda comercial do camarão-cinza Litopenaeus<br />

vannamei, objetivando correlacionar as variáveis respostas com as <strong>de</strong> manejo utilizando-se mo<strong>de</strong>los<br />

matemáticos. As variáveis <strong>de</strong>pen<strong>de</strong>ntes analisadas foram: sobrevivência, peso final, fator <strong>de</strong> conversão<br />

alimentar, produção, produtivida<strong>de</strong> e quantida<strong>de</strong> <strong>de</strong> ração, enquanto que as in<strong>de</strong>pen<strong>de</strong>ntes foram:<br />

número do viveiro, número do ciclo, área do viveiro, trimestre do ano, ano, <strong>de</strong>nsida<strong>de</strong> <strong>de</strong> estocagem,<br />

dias <strong>de</strong> cultivo, laboratório fornecedor <strong>de</strong> pós-larva e marca da ração. Para selecionar as variáveis<br />

significativas nos mo<strong>de</strong>los (P < 0,05), utilizou-se a técnica <strong>de</strong> Stepwise associada ao processo <strong>de</strong><br />

transformação <strong>de</strong> Box e Cox. A estimação do transformador (λ) foi feito com a minimização da soma<br />

dos quadrados dos resíduos. Verificou-se que dias <strong>de</strong> cultivo, <strong>de</strong>nsida<strong>de</strong> <strong>de</strong> estocagem, laboratório<br />

fornecedor <strong>de</strong> pós-larva e a área dos viveiros foram as variáveis in<strong>de</strong>pen<strong>de</strong>ntes significativas para<br />

predição das variáveis respostas.<br />

PALAVRAS CHAVE: Litopenaeus vannamei, manejo, mo<strong>de</strong>los, variáveis.<br />

ABSTRACT<br />

STATISTICAL ANALYSIS OF THE VARIABLE OF CULTIVATION OF THE SHRIMP<br />

Litopenaeus vannamei (BOONE, 1931)<br />

Fifty tree data of cultivations of the commercial marine shrimp farm Litopenaeus vannamei were used,<br />

to correlate the <strong>de</strong>pen<strong>de</strong>nt variables with the one of handling being used mathematical mo<strong>de</strong>ls. The<br />

analyzed <strong>de</strong>pen<strong>de</strong>nt variables were: survival, final weight, ration rate, factor of alimentary conversion,<br />

production, productivity and amount of ration, while the in<strong>de</strong>pen<strong>de</strong>nt ones were: number of the pond,<br />

number of the cycle, area of the pond, trimester of the year, year, stocking <strong>de</strong>nsity, days of cultivation,<br />

supplying laboratory of post-larvae and mark of the ration. To select the significant variables in the<br />

mo<strong>de</strong>ls (P < 0.05), it was used the technique of Stepwise associated to the process of transformation of<br />

Box and Cox. The estimate of the transformer (λ) it was done with the minimization of the sum of the<br />

squares of the residues. It was verified that days of cultivation, stocking <strong>de</strong>nsity, and supplying<br />

laboratory of post-larvae and the area of the pond were the significant in<strong>de</strong>pen<strong>de</strong>nt variables for<br />

prediction of the variables.<br />

KEYWORDS: Litopenaeus vannamei, handling, mo<strong>de</strong>ls, variables.

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