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Novelties and notes in Lindsaea (Lindsaeaceae) from Mexico and central America
(Phytotaxa 296 Vol.2 147-160, 2017)
Three new species of Lindsaea are described and illustrated from Mesoamerica: L. angustipinna, L. fuscopetiolata and L.
mesoamericana. Additionally, the status of L. quadrangularis subsp. subalata is modified to L. subalata ...
Pollination by nitidulid beetles in the hemi-epiphytic aroid Monstera lentii (Araceae: Monsteroideae)
(Functional Ecology of Plants, 2017-06)
Among aroids (Araceae family) with bisexual flowers, the reproductive biology of the neotropical genus Monstera (Subfamily Monsteroideae) is misunderstood. Nothing is known about the reproductive phenology and the sparse ...
Aspects of the reproductive biology of the data-deficient Mustelus minicanis and M. norrisi (Chondrichthyes: Triakidae) in the southern Caribbean Sea
(Environmental Biology of Fishes, 2017-05)
Reproduction and maturation in the economically important, but data-deficient, Mustelus minicanis and M. norrisi were analysed using catches of populations exploited by a gillnet fishery during two years in the southern ...
Factibilidad técnica del uso conjunto de tapetes microbianos y bioflóculos en sistemas de recirculación para acuicultura
(2017-07-01)
La bioremediación de aguas en sistemas recirculados para el cultivo de organismos acuáticos mediante la utilización de tapetes microbianos construidos es parcialmente efectiva ya que elimina algunos de los productos no ...
Isolation of ammonium- and nitrite-oxidizing bacterial strains from soil, and their potential use in the reduction of nitrogen in household waste water
(Universidad de Costa Rica, 2017-12-01)
Currently, nitrogen has become the main element of water pollution, causing riverine, lacustrine and coastal eutrophication. The continuous contamination of aquifers and the absence of planned water resource utilization, ...
Indicator - based management recommendations for an artisanal bottom - longline fishery in Costa Rica, Central America
(Universidad de Costa Rica, 2017)
There is a growing need to strengthen the small-scale fishing sector with emerging governance methods that improve fishers’ threatened livelihoods. Therefore, this study’s aim was to develop management
recommendations, ...
Spontaneous spawning in captivity of the first generation hatchery-produced weakfish, Cynoscion squamipinnis (Perciformes: Sciaenidae)
(Universidad Nacional (Costa Rica), 2017-01)
The aim of this study was to evaluate the spontaneous spawning of the first generation of weakfish (Cynoscion squamipinnis) reared in captivity in order to conduct restocking programs and mariculture projects. Juveniles ...
Teorías y modelos aplicados al estudio de la conducta del pescador: implicaciones en procesos de gestión
(Universidad Nacional (Costa Rica), 2017-01)
En el proceso de toma de decisiones para el manejo de pesquerías se ha incrementado la atención en considerar aspectos de la dimensión humana de la pesca adicionalmente a la dimensión ecológica. En la dimensión humana, el ...
Las cuencas urbanas y su fauna: el caso del Río Pirro, Heredia, Costa Rica
(Universidad Estatal a Distancia, 2017)
Las comunidades de fauna silvestre son parte de la biodiversidad presente en las ciudades. Existe sin embargo, una generalizada escasez de información acerca de los diversos grupos faunísticos que se encuentran en los ...
Avifaunal characterization of Corral de Piedra Palustrine Wetland, Nicoya, Costa Rica
(Universidad Estatal a Distancia, 2017-12)
Wetlands maintain high biodiversity and provide impor-tant habitat for many bird species, but now have strong pressure from anthropogenic activities. Birds in wetlands are important indicators of environmental changes ...