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Now showing items 21-30 of 34
Crecimiento de juveniles de la corvina aguada, Cynoscion squamipinnis (Perciformes: Sciaenidae) en cautiverio
(Universidad Nacional (Costa Rica), 2016-07-31)
Peces juveniles de corvina aguada, Cynoscion squamipinnis, obtenidos a partir de desoves espontáneos en cautiverio fueron engordados por 355 días en la Estación de Biología Marina Juan Bertoglia Richards ...
Caracterización hidrogeoquímica de los acuíferos volcánicos Bar va y Colima en el Valle Central de Costa Rica
(Instituto Mexicano de Tecnología del Agua, Tecnología y ciencias del agua, 2016)
La composición química del agua subterránea está
determinada por procesos antropogénicos y por interacciones
con el material geológico que conforma el acuífero. El presente
estudio describe la caracterización ...
Evidencia fotográfica de especies desconocidas de onicóforos (Onychophora: Peripatidae) de Costa Rica
(Universidad Estatal a Distancia (Costa Rica), 2016-12)
Onychophorans are hard to find and identify to species under field conditions.
Currently, there are seven species described from Costa Rica,
and an appropriate taxonomic revision is necessary. However, technology
allows ...
Isotopic composition in precipitation and groundwater in the northern mountainous region of the Central Valley of Costa Rica
(Taylor & Francis, 2016)
The linkage between precipitation and recharge is still poorlyunderstood in the Central America region. This study focuses onstable isotopic composition in precipitation and groundwater in the northern mountainous region ...
Ultrastructural demonstration of the model of Litopenaeus vannamei (Crustacea, Penaeidae) male sexual maturation and spermatozoal capacitation
(Invertebrate Reproduction and Development Vol.61 No.1, 2016-10-13)
The present study demonstrates ultrastructurally the model of Litopenaeus vannamei male sexual maturation and spermatozoal capacitation. The results show that phase 1 of the model occurred in the seminiferous tubules and ...
Distributional range expansion of Cataractocoris Marginiventris Usinger (Hemiptera: Heteroptera: Naucoridae) and first record from El Salvador
(Instituto de Ecología, A.C. - INECOL (México), 2016-04-10)
The presence of the species Cataractocoris marginiventris is recorded for the first time in El Salvador, which represents a significant expansion of the species' distribution range towards the south.
In vitro digestibility and proteases inhibitory effect of several feedstuffs for Parachromis dovii juveniles and P. dovii hybrid larvae
(Fish Physiology and Biochemistry Vol.42 No.6 1767-1776, 2016)
Parachromis dovii, a native cichlid from Costa Rica, is highly appreciated for its size and flesh quality. Further, P. dovii easily accept inert feed from the beginning of exogenous feeding; however, its growth is low ...
Technical and economic feasibility of adding pure oxygen for rotifer production (Brachionus plicatilis) spotted snapper (Lutjanus guttatus) larvae feeding
(Tecnológico de Costa Rica (TEC) (Costa Rica), 2016-08-30)
A study to technically and economically evaluate the addition of pure oxygen in a culture of
rotifers for feeding marine fish in the Pacific Marine Park, Puntarenas, Costa Rica was performed.
The results showed no ...
Antimicrobial properties of sea anemone Anthopleura nigrescens from Pacific coast of Costa Rica
(Elsevier (Países Bajos), 2016-05)
Objective: To evaluate the antimicrobial and antifungal activities of the aqueous and
partitioned extract of sea anemone Anthopleura nigrescens (A. nigrescens).
Methods: The sea anemone A. nigrescens was collected, minced, ...
Contribución al mecanismo de formación de poros de sticholisina I, una proteína formadora de poros de la anémona Stichodactyla helianthus, mediante el empleo de mutantes de Cys en zonas funcionalmente relevantes de la proteína
(Academia de Ciencias de Cuba (Cuba), 2016)
Sticholisina I (St I) es una citolisina producida por la anémona marina Stichodactyla helianthus, que se caracteriza por formar poros oligoméricos en membranas naturales y artificiales. En este trabajo se describe la ...