Artículos científicos
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First record of non-indigenous Paracaprella pusilla Mayer, 1890 (Crustacea: Amphipoda: Caprellidae) in Golfo de Nicoya, Pacific Coast of Costa Rica
(REABIC, 2018)The caprellid Paracaprella pusilla from the Western Atlantic Ocean is reported for the first time in Golfo de Nicoya, Pacific coast of Costa Rica, representing the third registered invasion of this species in the Eastern ... -
Research frontiers in penaeid shrimp reproduction: future trends to improve commercial production
(Elsevier, 2019)Shrimp farming worldwide is based on a similar technological package, characterized by three phases: Controlled Reproduction, Larvae Culture, and Grow-out Culture. This basic aquaculture package uses broodstock animals, ... -
Thoracic nerve cord - ganglia recognition in intraspecific and interspecific transplants in the white shrimp, Penaeus (Litopenaeus) vannamei
(Science Direct, 2009-03)The recognition response of Penaeus (Litopenaeus) vannamei against thoracic nerve cord–ganglia transplants from three species of Penaeidae: P. vannamei, P. (Litopenaeus) stylirostris, and Trachypenaeus byrdi, and one species ... -
The histological structure of the androgenic gland and cellular cord of the male reproductive system of adult litopenaeus and rimapenaeus byrdi
(2012-05-01)The current knowledge of the precise extension and location of the androgenic gland (AG) in the genera Litopenaeus and Rimapenaeus is partial. Therefore, we analyzed the complete structure of the AG and cellular cord ... -
Treasured exceptions: association of morphoanatomical leaf traits with cup quality of Coffea arabica L. cv. “Catuaí ”
(Food Research International, 2021-01-05)The morphoanatomical characteristics of leaves were associated with altitude, hillside, and the cup quality of coffee produced in the Matas de Minas region. Although the small magnitude, there are correlations between cup ... -
Evaluación de la estructura comunitaria de las esponjas marinas en parches arrecifales del Caribe sur, Costa Rica
(Instituto de Investigaciones Marinas y Costeras (INVEMAR), 2020-07-16)Las esponjas marinas cumplen un gran número de funciones críticas para los arrecifes coralinos. A su vez, las variaciones en la estructura comunitaria de los poríferos pueden indicar cambios en las condiciones ambientales ... -
Evaluación de la amenaza de contaminación al agua subterránea y áreas de protección a manantiales en las subcuencas Maravilla-Chiz y Quebrada Honda, Cartago, Costa Rica
(Universidad Nacional, 2019-07-31)Las subcuencas del río Maravilla-Chiz y Quebrada Honda, localizadas en la región oriental del área metropolitana de Costa Rica, tienen una superficie aproximada de 46,8 km2, donde la principal actividad económica es la ... -
Oscillation of the velvet worm slime jet by passive hydrodynamic instability
(Nature Communications, 2015-03-17)The rapid squirt of a proteinaceous slime jet endows velvet worms (Onychophora) with a unique mechanism for defence from predators and for capturing prey by entangling them in a disordered web that immobilizes their target. ... -
Efecto de las descargas del emisario submarino de aguas residuales de la ciudad de Limón sobre la calidad del agua, abundancia y diversidad del fitoplancton en los alrededores de isla Uvita, Costa Rica
(Universidad Nacional, 2020-12-09)Con el objetivo de evaluar la posible afectación del emisario submarino en la ciudad de Limón, sobre el medio marino circundante, se establecieron 6 estaciones de muestreo, 4 de ellas cercanas a la zona de desfogue y 2 ... -
Observation of Varroa destructor behavior in capped worker brood of Africanized honey bees
(Springer Science + Business Media B.V., 2012-06-12)The behavioral activity of Varroa destructor was observed using transparent cells. Mite oviposition started at 45.0 ± 25.0 h post capping, followed by the next eggs laid at regular 27.3 ± 2.0 h intervals. On the prepupa, ... -
Characteristics of the spontaneous deposition of Sn in polycrystalline Pt
(2012-04)Spontaneous deposition of tin (Sn) in polycrystalline platinum (Pt pc) from a sulfuric acid solution of tin salts, was evaluated by conventional electrochemical techniques, to determine its characteristics. Tin was deposited ... -
Unexplored Character Diversity in Onychophora (Velvet Worms): A Comparative Study of Three Peripatid Species
(Sars International Centre for Marine Molecular Biology, Norway, 2012-12-17)Low character variation among onychophoran species has been an obstacle for taxonomic and phylogenetic studies in the past, however we have identified a number of new and informative characters using morphological, molecular, ... -
Variación estacional de la composición proximal en tres especies de importancia comercial del Golfo de Nicoya, Puntarenas, Costa Rica
(Universidad de Costa Rica, 2013)Variación estacional de composición próxima en tres especies de importancia comercial en el Golfo de Nicoya, Puntarenas, Costa Rica. El valor nutricional de los productos del mar para el consumo humano está reconocido ... -
Leaf life span spectrum of tropical woody seedlings: effects of light and ontogeny and consequences for survival
(Oxford University Press, Annals of Botany Company, 2013-03-26)Background and AimsLeaf life span is widely recognized as a key life history trait associated with herbivory resistance, but rigorous comparative data are rare for seedlings. The goal of this study was to examine how light ... -
Descripción histológica de la oogénesis y espermatogénesis del camarón de cultivo, Litopenaeus vannamei
(Revista de Biología Marina y oceanografía, 2013)This research describes detailed stages of oogenesis and spermatogenesis at histological level in the white shrimp of the western Pacific, Litopenaeus vannamei. Both processes were studied in cultured organisms under ... -
New species of Potamocoris Hungerford (Heteroptera, Potamocoridae) from Costa Rica and a key to the species
(Magnolia Press, 2014-11)A new potamocorid species, Potamocoris sitesi NEW SPECIES, with its two wing morphs (coleopteroid and macropterous) are described from Costa Rica. Descriptions are supported with photographs and illustrations. Parameres ... -
The structure and function of dry weather mangrove on the Pacific Coast of Central America, with emphasis on Avicennia bicolor forests
(Estuaries Research Federation, 2013)Mangrove forests along the Pacific Coast of Central America cover around 4,000 km2. Most of this coast is occupied with tropical dry forest mangroves where basal areas range between 6 and 20 m2 ha−1 and canopy heights ... -
Behavioral plasticity mitigates risk across environments and predators during anuran metamorphosis
(Behavioral Ecology, 2013)Most animals metamorphose, changing morphology, physiology, behavior and ecological interactions. Size- and habitat-dependent mortality risk is thought to affect the evolution and plastic expression of metamorphic timing, ... -
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 ... -
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, ...
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