Crecimiento, mortalidad y madurez gonadal de Penaeus stylirostris, Penaeus occidentalis y Trachipenaeus byrdi en el Golfo de Nicoya, Costa Rica
Fecha
1993
Autores
Angulo R., Ramón A.
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Editor
Universidad Nacional (Costa Rica)
Resumen
Este estudio presenta un análisis sobre el camarón blanco, Penaeus occidentalis, Penaeus stytlirostris y sobre trachypenaeus byrdi camarón tití o conchudo en las áreas regulares de pesca llamados "caladeros" en la parte interna del Golfo de Nicoya. El análisis comprende aspectos de crecimiento, mortalidad y estadíos de desarrollo gonadal de 1422 individuos de las tres especies, durante muestreos quincenales para 1990-1991, con una red de enmalle. Del análisis macroscópico de los estados de desarrollo gonodal de las 3 especies, se encontró año 3 períodos o picos de madurez gonodal durante el año (marzo-abril, junio-julio, octubre-noviembre). Se encontró que P. occidentalis es la especie con la mayor constante de crecimiento (K) y son los de mayor tamaño (Loo), indicando dimorfismo sexual (hembras más grandes), incluso para las otras especies. El comparador (phi) indicó una buena relación (K y Loo), los cuales dieron valores muy similares.
This study presents an analysis on white shrimp, Penaeus occidentalis, Penaeus stytlirostris and on trachypenaeus byrdi marmoset or conchudo shrimp in the regular fishing areas called "fishing grounds" in the inner part of the Gulf of Nicoya. The analysis includes aspects of growth, mortality and stages of gonadal development of 1422 individuals of the three species, during biweekly samplings for 1990-1991, with a gillnet. From the macroscopic analysis of the stages of gonodal development of the 3 species, 3 periods or peaks of gonodal maturity were found during the year (March-April, June-July, October-November). It was found that P. occidentalis is the species with the highest growth constant (K) and they are the largest (Loo), indicating sexual dimorphism (larger females), even for the other species. The comparator (phi) indicated a good relationship (K and Loo), which gave very similar values.
This study presents an analysis on white shrimp, Penaeus occidentalis, Penaeus stytlirostris and on trachypenaeus byrdi marmoset or conchudo shrimp in the regular fishing areas called "fishing grounds" in the inner part of the Gulf of Nicoya. The analysis includes aspects of growth, mortality and stages of gonadal development of 1422 individuals of the three species, during biweekly samplings for 1990-1991, with a gillnet. From the macroscopic analysis of the stages of gonodal development of the 3 species, 3 periods or peaks of gonodal maturity were found during the year (March-April, June-July, October-November). It was found that P. occidentalis is the species with the highest growth constant (K) and they are the largest (Loo), indicating sexual dimorphism (larger females), even for the other species. The comparator (phi) indicated a good relationship (K and Loo), which gave very similar values.
Descripción
Angulo R., R. A. (1993). Crecimiento, mortalidad y madurez gonadal de Penaeus stylirostris, Penaeus occidentalis y Trachipenaeus byrdi en el Golfo de Nicoya, Costa Rica. [Tesis de Licenciatura. Universidad Nacional, Costa Rica].
Palabras clave
CAMARON DE MAR, PESCA, PISCICULTURA, COSTA RICA, SEA SHRIMP, FISHING, PISCICULTURE