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Parasitoidismo por dípteros en larvas de Caligo atreus (Lepidoptera: Nymphalidae) en Cartago, Costa Rica
(Universidad de Costa Rica, 2004)
Dipteran parasitoidism on larvae of Caligo atreus (Lepidoptera: Nymphalidae) in Cartago, Costa Rica. Parasitoids on larvae of Caligo atreus were studied at the Estación de Biología Tropical in Río Macho, Cartago, Costa ...
Fecundidad, fertilidad e índice gonadosomático de Poecilia reticulata(Pisces: Poeciliidae) en Heredia, Costa Rica
(Universidad de Costa Rica, 2004)
Fertility, fecundity and gonadosomatic index of Poecilia reticulata(Pisces: Poeciliidae) in Heredia, Costa Rica. Between September and November of 1998, 1 432 females of Poecilia reticulata were collected in a ...
Induction of ovarian maturation and spawning by combined treatment of serotonin and a dopamine antagonist, spiperone in Litopenaeus stylirostris and Litopenaeus vannamei
(Universidad Nacional, Costa Rica, 2004)
The study was designed to develop a reliable technique for inducing ovarian maturation and
spawning in Litopenaeus stylirostris and Litopenaeus vannamei, as an alternative to the traditional
and destructive eyestalk ...
Generation and propagation of anticyclonic rings in the Gulf of Papagayo
(Taylor & Francis, 2004)
Lagrangian drifting buoys, local meteorological stations and
AVHRR data were used to describe the generation and propagation of
anticyclonic rings in the Gulf of Papagayo during the upwelling season in 1996.
Some ...
Transversalidad y valores: una propuesta metodológica para incorporarlos en los Programas de estudio de Ciencias y Biología
(Universidad Nacional, Costa Rica, 2004)
La creciente crisis social producto de la deficiencia y carencia de valores ha generado un deterioro de la dignidad humana, del orden social y del ambiente entre otras cosas. Es en este punto en donde surge la necesidad ...
Efecto del probiótico Bacillus subtilis sobre el crecimiento y alimentación de tilapia (Oreochromis niloticus) y langostino (Macrobrachium rosenbergii) en laboratorio
(Revista de Biología Tropical, 2004-12-01)
Effect of the probiotic Bacillus subtilis on the growth and food utilization of tilapia (Oreochromis niloticus) and prawn (Macrobrachium rosenbergii) under laboratory conditions. Three experiments were conducted to analyze ...
Extensive blooms due to Cochlodinium polykrikoides: New to Costa Rica
(Intergovernmental Oceanographic Commision, UNESCO, 2004-10-01)
At the beginning of April of 2004 an extensive bloom produced by Cochlodinium polykrikoides was detected, embracing the whole Pacific coast of Costa Rica. The bloom was characterized by a red-oxide colour and was located ...