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Abundance and size frequency of postlarvae of Penaeus occidentalis in the Gulf of Nicoya, Costa Rica
(Universidad de Costa Rica, 1997)
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. ...
Morfometría, época reproductiva y talla comercial de Macrobrachium americanum (crustacea: palaemonidae) en Guanacaste, Costa Rica
(Universidad Nacional, Costa Rica, 1996)
Macrobrachium americanum was collected in the San Amires River, Santa Cruz, Guanacaste, Co sta Rica (lOO 22' 00" N; 85043' 00" W), from March 1984 to Apri11985. Fo r 290 specimens the relationship tota l lengthto tal ...
Preliminary evaluation of eyestalk ablation and thoracic ganglion importation on spermatophore quality and molting of male Penaeus vannamei
(Universidad Nacional, Costa Rica, 1992-01-01)
Males of Penaeus vannamei (mean weight = 25.05 ± 1.89 g), selected from a commercial semi-intensive pond, selected form a commercial semi-intensive pond, were used to study the effect of thoracic ganglion implantation on ...
Control de la reproducción de camarones marinos
(Universidad Nacional [Costa Rica ], 1998-01-01)
El entendimiento de la biología reproductiva básica es necesario para el mejoramiento de la producción de gametos de camarones. Esta presentación revisará nuestro conocimiento actual en materia de determinación sexual, ...