Palabras clave
endemic
ornamental
gonadosomatic index
India.
Puntius shalynius
endémico
ornamental
índice gonadosomático
India.
Cómo citar
Resumen
Puntius shalynius es un pez de agua dulce altamente endémico que posee importancia económica y esta amenazado por su valor ornamental. En esta investigación se evaluó la maduración de las gónadas de este pez basado en la morfología y desove de esta especie en el río Umiam, Meghalaya, India. La población de esta especie nativa ha decrecido debido a su distribución fragmentada y explotación como pez ornamental. El ciclo reproductivo de P. shalynius se estudió por primera vez. En el río se recolectó al azar una muestra de 609 peces por un período de dos años entre enero 2010 y diciembre 2011. Se observaron cinco estadios de madurez (descanso, crecimiento primario, crecimiento secundario, maduro, agotamiento) basados en la evaluación macroscópica testicular y ovárica durante el ciclo anual. La actividad máxima del desove se observó entre junio y julio lo que coincidió con el comienzo de la época de monzones. El estudio demostró que estos peces desovan una vez al año con un único punto máximo y que la especie es de baja fecundidad. Es importante la conservación de esta especie por su valor ecológico único y se deben promover políticas de manejo urgentes para su uso sostenible.
Citas
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Derechos de autor 2017 Revista de Biología Tropical