Search
Now showing items 511-520 of 556
Composición, diversidad y abundancia de peces en el embalse Arenal, Guanacaste, Costa Rica
(Universidad de Costa Rica (Costa Rica), 1989-11-01)
The abundance, species diversity. richneiS, dominance, evenness and similarity índices of the fish cornmunities at two stations in the Arenal Reservoir, Guanacaste, Costa Rica, were estimated between April 1984 and April ...
Growth and feed utilization of Dow cichlid (Cichlasoma dovii) larvae fed Artemia nauplii
(Universidad de Costa Rica (Costa Rica), 1995-12-01)
Growth and feed utilization of Dow cichlid larvae (Cichlasoma dovii) fed with Artemia nauplii during the
[lISt 12 days are assessed and compared with the growth of the larvae of the jaguar cichlid (Cichlasoma managuense).
Growth ...
Presencia de Bryconamericus scleroparius, Poeciliopsis turrubarensis y Cichlasoma nicaraguense en el Embalse Arenal, Costa Rica
(Universidad de Costa Rica (Costa Rica), 1988-06-01)
El Embalse Arenal se encuentra localizado en la Provincia de Guanacaste, Costa Rica (840 54' 8''N) a 546 m.s.n.m., con un área aproximada de 87.8 km2 y una profundidad promedio de 20.88 m (Centro Científico Tropical 1981; ...
Lichen community structure and richness in three mid-elevation secondary forests in Costa Rica
(Universidad de Costa Rica (Costa Rica), 2021-06-21)
Introduction: Lichen diversity, community structure, composition and species abundance have been used as
indicators of the integrity and ecological continuity of tropical forest ecosystems. Objectives: To assess ...
¿Qué, dónde y por quién se ha publicado sobre fisiología vegetal en la Revista de Biología Tropical? [2000-2022]
(Universidad de Costa Rica (Costa Rica), 2023)
Introducción: La fisiología vegetal tiene un impacto mundial en términos de publicaciones dada la significancia
de sus investigaciones en el desempeño de las plantas, ya sea en sus mecanismos, eficiencia, adaptabilidad,
genética ...
Chlorophyll fluorescence and biomass partitioning within light and nitrogen deficiency: An example of the use of the R programming language for teaching
(Universidad Estatal a Distancia (UNED) (Costa Rica), 2020)
Introduction: Chlorophyll Fluorescence (Fv/Fm) detects damage in photosystem II (PSII) in plants exposed to stress (biotic and/or abiotic). Objective: In this context, Fv/Fm for the diagnosis of the effect of N deficiency ...
Morphometry of the fruits of Genipa americana (Rubiaceae): a case study from the southern coast of Bahia, Brazil
(Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (Brasil), 2021)
We conducted a study to assess the morphometric attributes of Genipa americana fruit, and their relationship with variations in elevation and distances between sampling sites on the southern coast of Bahia, Brazil. Eight ...
Bacterial multi-resistance to antibiotics in water from plant cavities (phytotelms) in a deep tropical forest from Costa Rica
(Universidad Estatal a Distancia (UNED) (Costa Rica), 2023)
Introduction: The spread of antimicrobial resistance in natural environments continues to be reported throughout the world; nevertheless, there is no study about phytotelms (water in the natural cavities of plants) in the ...
New records, validated name, and redefinition in Azolla (Salviniaceae, Pteridophyta) from Costa Rica
(Universidad de Antioquia (Colombia), 2024)
In studies of herbarium specimens and living material, we observed that several species in the
genus Azolla Lam. are present in different wetlands of Costa Rica, which instigated the search for
applicable names of each ...
Primer registro de arribo masivo de sargazo pelágico (Sargassum sp) a la costa del Caribe Sur de Costa Rica durante el año 2022
(Instituto de Investigaciones Marinas y Costeras “José Benito Vives de Andréis” (Colombia), 2023)
A inicios de marzo de 2022 se dio un evento de llegada masiva de sargazo pelágico (Sargassum sp.) a diferentes playas del Caribe
sur de Costa Rica. Aunque la presencia de esta alga parda no es rara en la costa Caribe del ...