Efecto del Parque Nacional El Rey y de una crecida sobre peces de interés pesquero en un río subandino del noroeste de la Argentina

Alejo J. Irigoyen; Gastón Trobbiani; Agustín M. De Wysiecki; Gastón Aguilera; Guillermo Terán; Baltazar H. Bugeau; Miguel Casalinuovo; Felipe Alonso

doi:10.25260/EA.23.33.3.0.2168

Autores/as

Alejo J. Irigoyen Centro para el Estudio de Sistemas Marinos (CESIMAR), Consejo Nacional de Investigaciones Científicas y Técnicas (CCT CENPAT-CONICET). Puerto Madryn, Argentina
Gastón Trobbiani Centro para el Estudio de Sistemas Marinos (CESIMAR), Consejo Nacional de Investigaciones Científicas y Técnicas (CCT CENPAT-CONICET). Puerto Madryn, Argentina
Agustín M. De Wysiecki Centro para el Estudio de Sistemas Marinos (CESIMAR), Consejo Nacional de Investigaciones Científicas y Técnicas (CCT CENPAT-CONICET). Puerto Madryn, Argentina
Gastón Aguilera Unidad Ejecutora Lillo (CONICET)-Fundación Miguel Lillo. Tucumán, Argentina
Guillermo Terán Unidad Ejecutora Lillo (CONICET)-Fundación Miguel Lillo. Tucumán, Argentina
Baltazar H. Bugeau Unidad Ejecutora Lillo (CONICET)-Fundación Miguel Lillo. Tucumán, Argentina
Miguel Casalinuovo Fallecido el 16/07/2022
Felipe Alonso Instituto de Bio y Geociencias del NOA (IBIGEO), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-UNSa. Rosario de Lerma, Salta, Argentina

DOI:

https://doi.org/10.25260/EA.23.33.3.0.2168

Palabras clave:

Salminus brasiliensis, Prochilodus lineatus, Megaleporinus obtusidens, Monitoreo de peces, Áreas Protegidas, Censos Visuales de Peces, distúrbio antrópico, pesca furtiva

Resumen

Ante la crisis global de pérdida de biodiversidad y deterioro de los ecosistemas, las áreas naturales protegidas tienen un rol preponderante como herramienta de manejo. Sin embargo, la mayoría se basa sobre criterios terrestres, mientras que los organismos de agua dulce son los más amenazados en cuanto a su conservación. En este trabajo se analiza el efecto de protección del Parque Nacional El Rey y de una crecida estival del río Popayán, de la cuenca del río Bermejito, sobre las poblaciones de peces de interés pesquero (el dorado [Salminus brasiliensis], el sábalo [Prochilodus lineatus] y la boga [Megaleporinus spp.]). Se realizaron estimaciones de abundancia y de talla mediante censos visuales antes y después al evento de crecida, y también dentro y en los límites del área protegida, en un contexto de presión de pesca por parte de pescadores furtivos. No se registró un efecto significativo de la crecida sobre las especies en estudio, pero sí del efecto del área protegida: en su interior se registró que las tres especies eran muy abundantes y que el dorado poseía tallas mucho mayores. Los resultados muestran que el área protegida cumple un rol esencial como sostén de las especies en estudio, sobre todo en el caso del dorado.

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