2017
DOI: 10.18779/cyt.v9i2.118
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Estructura de tallas de captura y relación longitud-peso de peces nativos en el humedal Abras de Mantequilla, Ecuador

Abstract: Resumen Este estudio tuvo como objetivos identificar la composición de capturas, describir la estructura de tallas y determinar la relación longitud-peso de las principales especies de peces nativos de interés comercial del humedal Abras de Mantequilla (AdM). Durante los meses de abril a septiembre de 2015 se recolectaron aleatoriamente 492 peces provenientes de los desembarques del humedal AdM y se midió la longitud total (Lt) y el peso total (Pt) a cada ejemplar. Para la identificación taxonómica de las espe… Show more

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“…AdM is located at the center of the Guayas River basin in the lowlands-coastal area of Western Ecuador and is a river-wetland system that experiences marked predictable seasonality. During the wet season (January-April), the system floods and expands before decreasing dramatically in the dry season, with water remaining only in the main channels (Alvarez-Mieles, 2019).The wetland was declared a Ramsar site in March 2000 and is a valuable site for freshwater fishes, supporting at least 22 species, including commercially important species (Alvarez-Mieles, 2019;OchoaUbilla et al, 2016;Ramsar, ). Macrophytes, which provide shelter from predators, food, and spawning and nursery grounds(Agostinho et al, 2007;Alvarez-Mieles, 2019;Meerhoff et al, 2007;Meschiatti et al, 2000), are abundant at AdM, with the floating macrophyte Eichornia crassipes (Pontederiaceae), commonly known as 'water hyacinth', representing around 80% of the total macrophytes biomass in the wetland, and Salvinia auriculataAubl.…”
mentioning
confidence: 99%
“…AdM is located at the center of the Guayas River basin in the lowlands-coastal area of Western Ecuador and is a river-wetland system that experiences marked predictable seasonality. During the wet season (January-April), the system floods and expands before decreasing dramatically in the dry season, with water remaining only in the main channels (Alvarez-Mieles, 2019).The wetland was declared a Ramsar site in March 2000 and is a valuable site for freshwater fishes, supporting at least 22 species, including commercially important species (Alvarez-Mieles, 2019;OchoaUbilla et al, 2016;Ramsar, ). Macrophytes, which provide shelter from predators, food, and spawning and nursery grounds(Agostinho et al, 2007;Alvarez-Mieles, 2019;Meerhoff et al, 2007;Meschiatti et al, 2000), are abundant at AdM, with the floating macrophyte Eichornia crassipes (Pontederiaceae), commonly known as 'water hyacinth', representing around 80% of the total macrophytes biomass in the wetland, and Salvinia auriculataAubl.…”
mentioning
confidence: 99%