
handle: 11056/22800
Las postlarvas del Género Penaeus fueron colectadas una vez al mes desde noviembre/94 hasta abril/95 en playa Cocoroca en el Golfo de Nicoya, Costa Rica. Se identificaron morfológicamente y se estudiaron las de P. occidentalis. Se reveló que las postlarvas de P. occidentalis ocuparon 65,6 % del total de individuos colectados, y 24,1 - 94,9 % de la composición mensual, y su densidad de distribución varió de 0,7-5,8 individuos/m2. La longitud del caparazón (CL) de las postlarvas de P. occidentalis osciló entre 1,55 y 9,58 mm, lo que sugiere un tamaño migratorio de las mismas. La frecuencia de CL mostró una distribución sesgada, lo que sugirió un patrón migratorio de las postlarvas de esa especie. Los crecimientos relativos del sexto somita abdominal y el carpo del tercer pereópodo de las postlarvas de P. occidentalis también fueron examinados contra el CL.
Postlarvae of the Genus Penaeus were collected once a month from November/94 to April/95 at Cocoroca beach in the Gulf of Nicoya, Costa Rica. They were identified morphologically, and those of P. occidentalis were studied. It was revealed that the postlarvae of P. occidentalis occupied 65.6 % of the total individuals collected, and 24.1 - 94.9% of the monthly composition, and their distribution density varied from 0.7-5.8 individuals/m2. The carapace length(CL) of the postlarvae of P. occidentalis ranged from 1.55 to 9.58 mm, which suggested a migratory size of them. The frequency of the CL showed a skewed distribution, which suggested a migratory pattern of the postlarvae of that species. The relative growths of the 6th abdominal somite and the carpus of the third pereopod of the postlarvae of P. occidentalis were also examined against the CL.
Universidad Nacional, Costa Rica
Escuela de Ciencias Biológicas
MORFOLOGÍA (ZOOLOGÍA), CAMARONES, MORPHOLOGY, COSTA RICA, GOLFO DE NICOYA (COSTA RICA), PENAEUS, SHRIMP
MORFOLOGÍA (ZOOLOGÍA), CAMARONES, MORPHOLOGY, COSTA RICA, GOLFO DE NICOYA (COSTA RICA), PENAEUS, SHRIMP
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