Reproductive aspects of the Patagonian toothfish (Dissostichus eleginoides) off southern Chile
作者： Patricio Arana
DOI: 10.4067/S0718-560X2009000300009
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摘要: Se dan a conocer resultados sobre la biologia reproductiva del bacalao de profundidad (Dissostichus eleginoides) capturado en el extremo sur-austral Chile, entre enero y marzo junio noviembre 2006. En dicho periodo se midio determino sexo 10.896 ejemplares, comprendidos 55 220 cm longitud total (LT), los cuales 7.049 correspondieron machos (64,7%) 3.847 hembras (35,3%). Mediante observacion macroscopica las gonadas que observa comienzo maduracion gonadica partir 60 LT, con una talla media (TMS50%) 81 89 cm. sugiere esta especie presenta un amplio desove este proceso efectuaria unicamente region austral destacandose hasta ahora no cuenta evidencias recurso reproduzca otra zona oceano Pacifico frente costa Sudamerica atencion ausencia ejemplares maduros capturas, altos porcentajes atresia peces juveniles faenas pesca arrastre dirigidas otras especies comerciales.
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