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Shifts in bacterioplankton community structure between dry and wet seasons in a tropical estuary strongly affected by riverine discharge
(Elsevier (Países Bajos), 2023-12)
Estuaries are among the most productive ecosystems in the world and are highly dynamic due to the interaction
of freshwater and seawater, which results in strong spatial gradients in physico-chemical conditions. ...
Incubación, pre-lisis y post-purificación en el rendimiento y pureza de ácidos nucleicos extraídos de sangre de cabras domésticas contenida en tarjetas FTA
(Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (México), 2022)
Técnicas moleculares requieren extracciones de ácidos nucleicos en cantidad y pureza adecuadas. Este trabajo describe un modelo lineal generalizado (GLM) de un factor ajustado con efectos fijos sobre el rendimiento de ácido ...
Variación estacional de la composición proximal del mejillón Tagelus peruvianus (Bivalvia: Solecurtidae) del Golfo de Nicoya, Puntarenas, Costa Rica
(Universidad de Costa Rica (Costa Rica), 2011-12)
Los bivalvos marinos son una fuente de alimento muy importante para el consumo humano, y están ganando interés especies que no han tenido un uso tradicional como recurso pesquero. Se estudió la variación estacional en la ...
Molecular identification of Streptococcus sp. and antibiotic resistance genes present in Tilapia farms (Oreochromis niloticus) from the Northern Pacific region, Costa Rica
(European Aquaculture Society (Bélgica), 2021-07-24)
Streptococcosis is a bacterial disease in tilapia that produces economic losses, caused
mainly by Streptococcus agalactiae and S. iniae. It is treated using oxytetracycline and
florfenicol, which when inappropriately ...
Detección molecular de secuencias de ADN transgénico en alimentos de consumo humano y animal en Costa Rica
(Universidad de Costa Rica (Costa Rica), 2017-07-06)
Desde la introducción de los cultivos genéticamente modificados (GM), ha habido un crecimiento continuo en adopción de la tecnología
y en la comercialización de alimentos y piensos
derivados de cultivos GM alrededor ...
Diversity of Aerobic Bacteria Isolated from Oral and Cloacal Cavities from Free-Living Snakes Species in Costa Rica Rainforest
(Hindawi Limited (Reino Unido), 2017-08-20)
Costa Rica has a significant number of snakebites per year and bacterial infections are often complications in these animal bites.
Hereby, this study aims to identify, characterize, and report the diversity of the bacterial ...
Saxitoxin Poisoning in Green Turtles (Chelonia mydas) Linked to Scavenging on Mass Mortality of Caribbean Sharpnose Puffer Fish (Canthigaster rostrata-Tetraodontidae)
(Frontiers Media (Suiza), 2019-12-17)
Fish within the family Tetraodontidae are potential sources of both endogenous
tetrodotoxins (TTXs) and dietary derived saxitoxins (STXs). Ingestion of fish tissues
containing these toxins by other vertebrates can lead ...
Implant recognition and gender expression following ampoule-androgenic gland implantation in Litopenaeus vannamei females (Penaeidae)
(Aquaculture Vol.468 Part 1. 471-480, 2017-02-01)
Indirect evidence indicates that penaeids may have a W/Z sex heritability mechanism with the androgenic gland (AG) mediating masculine differentiation. The present study evaluated the immune response against grafts and the ...
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 ...
Effects of androgenic gland ablation on growth, sexual characters and spermatogenesis of the white shrimp, Litopenaeus vannamei (Decapoda: Penaeidae) males
(Aquaculture Research Vol.47 No.9 2768-2777, 2015-03-10)
This research was implemented to study the effects of androgenic gland ablation in the white shrimp Litopenaeus vannamei to explore sex reversal potential as an alternative technology for monosex female mariculture based ...