Browsing Artículos científicos by Subject "ACUICULTURA"
Now showing items 1-18 of 18
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Comparison of fatty acids profile of the gonads and eggs of Lutjanus guttatus(Perciformes: Lutjanidae) obtained from wild and captive broodstock
(Universidad Nacional (Costa Rica), 2020-01)The proportions of fatty acids present in eggs and gonads of wild and captive Lutjanus guttatus(Steindachner, 1869) were evaluated to assist in obtaining nutritional information necessary to ... -
Concentración y tiempo máximo de exposición de juveniles de pargo manchado Lutjanus guttatusal eugenol Syzygium aromaticum
(Universidad Nacional (Costa Rica), 2019-01)Se definieron las dosis más eficientes de aceite de eugenol Syzygium aromaticum para la sedación quirúrgica en juveniles de pargo manchado (Lutjanus guttatus) y se determinó el tiempo mínimo de exposición de no retorno, ... -
Conceptualization and validation of a dynamic model for the simulation of nitrogen transformations and fluxes in fish ponds
(Elsevier, 2002-11-01)Nitrogen is a key element in aquatic environments and an important pond management variable. In aquaculture systems, nitrogen accumulation eventually leads to a deterioration of the system. The interactions between various ... -
Determinación del flujo de agua para la biorremediación en sistemas acuícolas recirculados utilizando tapetes microbianos construidos
(2015-09-01)La cantidad de agua necesaria en los sistemas de producción aumenta con la Intensificación; se han establecido tasas económicas de uso. Esta situación ha obligado a los productores a diseñar sistemas que les permitan seguir ... -
Determination of water flow rate for bioremediation in recirculating aquaculture systems using constructed microbial mats
(2015-07-01)Se evaluó el efecto del flujo de agua sobre la eficiencia de tapetes microbianos para remover nitrógeno amoniacal total (NAT, N-NH4+ + N-NH3), nitritos (N-NO2-), nitratos (N-NO3-) y ortofosfatos (P-PO4-3) en un sistema de ... -
Determination of water flow rate for bioremediation in recirculating aquaculture systems using constructed microbial mats
(2015)The effect of water flow rate was evaluated on the microbial mats efficiency to remove total ammonia nitrogen (TAN, NH4+-N+ NH3-N), nitrite (N-NO2-), nitrate (N-NO3-) and orthophosphate (P-PO4-3) in a pilot recirculation ... -
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)Three experiments were conducted to analyze the effect of the probiotic Bacillus subtilis on the growth of juvenile tilapia (Oreochromis niloticus) and freshwater prawn (Macrobrachium rosenbergii). The experiments were ... -
Effect of organic nitrogen and carbon mineralization on sediment organic matter accumulation in fish ponds
(Aquaculture Research, 2005-07-01)In aquaculture, ponds with high loads of organic inputs, organic matter accumulates at the bottom over time. Uneaten feed, senescent phytoplankton and faeces are the principal sources of accumulated material, but quanti¢cations ... -
Evaluación de los riesgos de afectación por el establecimiento de granjas atuneras en relación con la distribución espacial de cetáceos en el Golfo Dulce, Costa Rica
(Universidad Nacional (Costa Rica), 2009)Este estudio trata sobre la distribución espacial de depredadores marinos topes, particularmente cetáceos odontocetos y misticetos migratorios. Se describe el riesgo potencial de afectación por el establecimiento de ... -
Evaluation of Escherichia coli concentrations in Crassostrea gigas and seawater in two oyster growing areas in the Gulf of Nicoya, Costa Rica
(Universidad Nacional (Costa Rica), 2014-12)Costa Rica does not have references on the health quality of Crassostrea gigas growing areas, which can pose a po tential public health risk. This study evaluated the temporal trends of Escherichia coli concentrations in ... -
Growth and fillet yield in recirculation systems of Lobotes pacificus (Perciformes: Lobotidae), a species with aquaculture potential
(Universidad Nacional (Costa Rica), 2019-07)The genus Lobotes extends across tropical and subtropical areas of oceans such as the Atlantic and the Pacific; it is extracted in artisanal fisheries, and its aquaculture production technology is still under investigation. ... -
Isolation and characterization of partial insulin-like androgenic gland hormone gene from distal terminal ampoules of three marine shrimp Penaeus species from the Eastern Pacific
(2018)The expansion of the shrimp industry depends on scientific advances related to the understanding of reproductive endocrinology that allows the development of aquaculture programs based on biotechnology. An insulin ... -
Lista Provisional de los peces de las aguas continentales de Costa Rica
(Universidad Nacional (Costa Rica), 1984-01-01)A revised and amplified list of species of Costa Rican continental water fishes is presented. Some species are included for the first time in the Costa Rican freshwater ichthyofauna and others are not described yet to the ... -
Optimización del cultivo larvario para la producción de juveniles del pargo manchado Lutjanus guttatus en Costa Rica
(Universidad Nacional, Costa Rica, 2021-07-31)La base tecnológica para la acuicultura del Lutjanus guttatus fue desarrollada en Costa Rica desde el 2002 por el Parque Marino del Pacífico. Las primeras producciones en masa de juveniles se obtuvieron en el 2005, las ... -
Patógenos bacterianos y su resistencia a los antimicrobianos en los cultivos de tilapia en Guatemala
(Universidad Nacional (Costa Rica), 2021-07-31)Este estudio muestra el trabajo realizado durante el año 2018-2019, donde se identificaron los principales patógenos bacterianos que afectan los cultivos de la tilapia en Guatemala, al mismo tiempo se evaluó la resistencia ... -
Rose snapper marine culture in Costa Rica
(Panorama Acuícula Magazine, 2008-03-01)A great variety of species of snappers are cultivated in Asia, and others recently studied in Mexico, Australia and the United States. In Costa Rica, the Marine Park of the Pacific has increased the production of juveniles ... -
Spotted rose snapper (Lutjanus guttatus) aquaculture research and development as socio-economic alternative for Costa Rican fishing communities
(2010-06-01)The spotted rose snapper (Lutjanus guttatus) is one of the main target coastal species, but landings are decreasing in quantity and size. Reports include a mean capture size of 50 cm with gill nets and 38 cm with bottom ... -
Strategy of bioremediation in recirculating aquaculture systems using constructed microbial mats
(Journal of Chemical, Biological and Physical Sciences, 2014-11-30)Due to strict international standards, every day there is greater interest in developing environmentally sound treatment systems in aquaculture facilities that can remove contaminants from effluent and allows for the reuse ...
