Search
Now showing items 11-16 of 16
Intensive Rearing of Juveniles of cichlasoma managuense (Günther 1869) in recirculated systems
(Universidad Nacional, Costa Rica, 1991-01-01)
The growth performance of guapote juveniles in recirculated systems from spawning to a mean weight of about 3 gramms is described. Culture began with a 15 days nursing phase with either first instar-nauplii or fresh ...
Growth, feed utilization and nutrient digestibility in tilapia fingerlings (Oreochromis aureus Steindachner) fed diets containing bacteria-treated coffee pulp
(Universidad Nacional, Costa Rica, 2002)
The effectiveness of bacteria treated-coffee pulp (BT-CoP) in fish diets was evaluated in a feeding trial with Oreochromis aureus (Steindachner) fingerlings. Five diets were formulated to contain 0%, 6%, 12%, 18% and 24% ...
Lista agregada de peces en tres zonas de manglar del golfo de Nicoya, Costa Rica
(Universidad Nacional (Costa Rica), 1995-02-22)
El conocimiento en nuestro país sobre la ictiofauna asociada a zonas de manglar es escaso, especialmente en zonas alejadas de la parte central del Golfo. La suma de características físicas y biológicas que se dan en estas ...
Variación mensual del índice de gonadosomatico de Colossoma macropomum relacionado a factores ambientales en Cañas, Costa Rica
(Universidad Nacional (Costa Rica), 2000)
Con el fin de determinar la variación mensual en el índice gonadosomático de Colossoma macropomum en estanques, se tomaron muestras mensuales de 10 individuos desde setiembre de 1993 hasta setiembre de 1994. Se midieron ...
Hormone-induced spawning of wild and captive-grown spotted rose snapper Lutjanus guttatus using carp pituitary suspension and human chorionic gonadotropin
(Universidad Autónoma de Baja California, México, 2011)
Hormone-induced spawning of the spotted rose snapper Lutjanus guttatus was studied using wild and cage-grown fish. Carp
pituitary suspension (CPS) and human chorionic gonadotropin (hCG) were assessed. Wild females (0.7–2.1 ...
Microplastics found in the World Heritage Site Cocos Island National Park, Costa Rica
(Instituto Nacional de Investigación y Desarrollo Pesquero - INIDEP (Argentina), 2022)
Microplastics (MPs) defined as ‘small’ pieces of plastic < 5 mm have been found
in almost every marine habitat around the world, and studies have shown that we can find them in
the ocean surface, the water column, the ...