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Now showing items 1021-1030 of 1211
Bacterias luminiscentes: Alternativa para la evaluación de la contaminación marino costera en Costa Rica
(Colegio de Biólogos (Costa Rica), 2014-07-12)
Se lograron aislar bacterias luminiscentes del Golfo de Nicoya,
Costa Rica. Se discuten las aplicaciones actuales de estos
microorganismos como bioindicadores de contaminación ambiental
y su potencial como alternativa ...
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 ...
Crecimiento bajo condiciones controladas de laboratorio y determinación del perfil de toxinas del dinoflagelado tóxico Gymnodinium catenatum, Golfo de Nicoya, Puntarenas, Costa Rica
(Universidad Nacional (Costa Rica), 2019-06)
El Golfo de Nicoya es un estuario altamente productivo, especialmente debido a la influencia
directa de los ríos Grande de Tárcoles, Tempisque y Barranca, que anualmente depositan grandes
cantidades de nutrientes a esta ...
Reproducción, Alevinaje y Crecimiento en Cautiverio de Tamborilleros o Roncadores del Pacífico Americano: Weakfish Cynoscionsquamipinnisy Whitefin Queen Cynoscionalbus: Una Revisión
(World Aquaculture Society (Estados Unidos), 2019-11)
Interés por estudiar la reproducción y alevinaje de esciánidos
.Repoblamiento de áreas sobreexplotadas
.Maricultura sostenible
.Diversificación de los cultivos
.Fuente de proteína de alta calidad
.Falta de conocimiento ...
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 ...
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, ...