La actividad turística afecta de manera distinta el potencial reproductivo de peces nativos y no nativos
DOI:
https://doi.org/10.22201/ib.20078706e.2026.97.5933Palabras clave:
Perturbación antropogénica, Mojarra criolla, Cíclido convicto, Falso boca de fuego, Nido, HuevosResumen
El turismo provoca cambios físicos, químicos y biológicos en los ecosistemas, alterando aspectos esenciales de la biología de las especies. Cada año, especialmente durante la estación seca, miles de personas acuden a áreas recreativas naturales en lagos, ríos y arroyos de México, incluido el río Amacuzac. La fauna nativa de este río incluye al único cíclido nativo de la cuenca, Amphilophus istlanus (Jordan y Snyder, 1899). Sin embargo, 2 especies invasoras, Amatitlania nigrofasciata (Günther, 1867) y Thorichthys maculipinnis (Steindachner, 1864) compiten con este cíclido nativo. Dado que la actividad humana puede tener un impacto en la cantidad y viabilidad de los nidos de estos cíclidos, cuantificamos la cantidad de nidos y el tamaño de la puesta del cíclido nativo y de los cíclidos invasores antes, durante y después de un evento de perturbación. El cíclido nativo resultó más vulnerable a las perturbaciones antropogénicas, ya que el número de nidos y el tamaño de puesta se vieron más afectados por la actividad humana en comparación con los cíclidos invasores. Con base en nuestros hallazgos, numerosas áreas recreativas de la región podrían establecerse como zonas restringidas donde A. istlanus tenga un mayor número de nidos durante la temporada de mayor actividad reproductiva.
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