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espanolSe estudio el efecto del tamano de anzuelo y la estacionalidad en la pesqueria artesanal con espinel de merluza del sur (Merluccius australis) en Chile. Se analizo el efecto de cuatro tamanos de anzuelos sobre las tallas y tasas de captura de merluza del sur (Merluccius australis) capturada con espinel mixto entre el Seno de Reloncavi y el Golfo de Ancud (41o42?S a 42o48?S). Se realizaron 60 lances de pesca en cuatro periodos (marzo, mayo, julio y septiembre), virandose un total de 59.294 anzuelos, capturandose 14.358 ejemplares equivalentes a 26.165 kg. El analisis demostro la superposicion de tallas de retencion para cada tamano de anzuelo en los meses de estudio, determinandose que no existen efectos significativos del anzuelo en la composicion por tallas ni en las tasas de captura. Sin embargo, se observaron diferencias significativas en la tasa de captura entre periodos, fluctuando entre 31,75 y 16,17 individuos por 100 anzuelos entre marzo y septiembre, respectivamente. Lo anterior sugiere un analisis de alternativas de artes de pesca y de medidas de administracion en la pesqueria. EnglishThe effect of hook size and seasonality on the artisanal long-line fishery of southern hake (Merluccius australis) in Chile was studied. We analyzed the effect of four hook sizes on the size-at-catch and catch rates of southern hake (Merluccius australis) caught with mixed long-lines between Seno de Reloncavi and Golfo de Ancud (41o42S-42o48S). Sixty fishing hauls were done in four periods (March, May, July, September); a total of 59,294 hooks were set and 14,358 specimens (26,165 kg) were caught. The analysis showed overlapping retention sizes for each hook size in the months studied, indicating no significant effects in either catch size composition or in catch rates between hooks of different size. Nevertheless, significant differences were observed between periods in the catch rates, fluctuating between 31.75 and 16.17 individuals per 100 hooks from March to September. The above results suggest that it is necessary to analyze alternative fishing gear and management measures for the fishery.

Effect of hook size and seasonality on the artisanal long-line fishery of southern hake (Merluccius australis Hutton, 1872) in Chile