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TAMANHO MÉDIO DE PRIMEIRA MATURAÇÃO DA LAGOSTA Panulirus laevicauda (LATREILLE) NO LITORAL DO ESTADO DO CEARÁ, BRASIL

1998; Volume: 31; Linguagem: Inglês

10.32360/acmar.v31i1-2.31369

2526-7639

Cira Nina Cavalcante Soares, Alberto Carvalho Peret,

Fish Biology and Ecology Studies

Through samplings accomplished on board medium-sized commercial boats operating in depths from 10 to 90 meters on the continental shelf off Ceara State, Brazil, 23,413 females of /abster Panulirus argus were examined and measured in the period from January, 1984 to December, 1993. From the sampled females the gonads were drawn for characterization of the macroscopic aspects of sexual development. The data analysis showed there to occur a lesser or larger incidence of uveniles or adults in relation to depth of the sampling site. The mean length at first sexual maturity was influenced by the proportion of juveniles in the catch. For the effect of stratification to be lessened, the mean size at first maturity was obtained from data of the whole studied period. The cape size at which 50% of the females are expected to be spawning in the population is in the range of 79-80 mm.