Results 51 to 60 of about 1,055 (159)
Between february and december of 2011 the fish communities of the ciénaga de Paredes, were studied by four samples in periods contrasting climates, station 1, corresponding to the inlet of the pipe Peruétano (BCP), station 2, Swamp Center (CC) and ...
Beatriz H. Mojica-Figueroa +1 more
doaj +1 more source
Áreas de reproducción de peces migratorios en la cuenca alta del río Magdalena, Colombia
During the 2011-2012 hydrological cycle, weekly samples were taken to evaluate the reproduction of migratory fishes in the area of influence of the El Quimbo hydroelectric project. This analysis considered the abundance and density of individuals in each
María Isabel Pareja-Carmona +5 more
doaj +1 more source
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck +5 more
wiley +1 more source
Content of mercury in muscle of some commercial fish species present in eight sampling sites from the Magdalena river basin (low, medium and high) [PDF]
Las diversas actividades antrópicas realizadas en las riberas de los sistemas acuáticos han ocasionados graves impactos sobre los organismos que allí habitan, uno de los principales contaminantes que afectan las pesquerías es el mercurio, el cual tiene ...
Lancheros Ascencio, Leidy Johanna
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Abstract Total Suspended Solids (TSS) significantly degrade water quality by reducing light penetration and oxygen availability, while facilitating the transport of toxic contaminants. Managing TSS in watersheds requires an understanding of both hydrological connectivity and pollutant dynamics; however, these efforts are significantly constrained by ...
Jesus Guzmán Pérez +2 more
wiley +1 more source
La estimación precisa de curvas de selectividad de redes de enmalle en una población de peces es un requisito importante para la sostenibilidad de los stocks explotados.
Jesús David Arrieta Atencio +2 more
doaj +1 more source
Milt cryopreservation facilitates native fish’s constant production of commercial interest. However, it can damage spermatozoa (sptz) due to the osmotic stress of diluents and low temperatures. This study compares spermatic quality in fresh (SF) and cryopreserved (CS) milt in B. amazonicus for 24 h, 1 month, and 3 months.
Owens José Barros-Barrios +4 more
wiley +1 more source
Las emisiones de mercurio (Hg) a partir de actividades de minería afectan los recursos pesqueros, los cuales son importantes en la alimentación proteínica de las poblaciones humanas.
Ángel De Jesús Cruz Esquivel +1 more
doaj +1 more source
Abstract A healthy skeletal system is fundamental to fish welfare and performance and a key physiological feature of a robust fish. The presence of skeletal deformities in farmed salmonids is a persistent welfare problem in aquaculture, and one which threatens to impede industry growth.
Brianne A. Lyall +7 more
wiley +1 more source
Análisis y evaluación financiera del sistema policultivo de bocachico y tilapia roja en los departamentos del Atlántico y Magdalena [PDF]
En este texto investigativo se realiza una avaluación financiera del proyecto Sistema Policultivo Bocachico – Tilapia Roja. Para llevar a cabo la investigación radica que en el momento en que se realizó el primer prototipo del Policultivo, no se tuvieron
Carreño Cueto, Edelsy Luz +1 more
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