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| Format: | Artículo científico |
| Language: | en |
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Universidad de Valparaíso
2009
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| Online Access: | https://www.redalyc.org/articulo.oa?id=47914663003 |
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| _version_ | 1866558243480797184 |
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| author | Dante Queirolo |
| author_facet | Dante Queirolo |
| contents | Effect of hook size and seasonality on the artisanal long-line fishery of southern hake (Merluccius australis Hutton, 1872) in Chile Dante Queirolo Mauricio Ahumada Ciencias de la Tierra Selectivity catch rates fishing gear artisanal fishery Southeast Pacific Ocean The 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 Reloncaví and Golfo de Ancud (41º42'S-42º48'S). 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. 2009 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47914663003 en http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.3 Vol.44 |
| format | Artículo científico |
| id | redalyc_47914663003 |
| language | en |
| publishDate | 2009 |
| publisher | Universidad de Valparaíso |
| spellingShingle | Effect of hook size and seasonality on the artisanal long-line fishery of southern hake (Merluccius australis Hutton, 1872) in Chile Dante Queirolo Ciencias de la Tierra Selectivity catch rates fishing gear artisanal fishery Southeast Pacific Ocean Effect of hook size and seasonality on the artisanal long-line fishery of southern hake (Merluccius australis Hutton, 1872) in Chile Dante Queirolo Mauricio Ahumada Ciencias de la Tierra Selectivity catch rates fishing gear artisanal fishery Southeast Pacific Ocean The 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 Reloncaví and Golfo de Ancud (41º42'S-42º48'S). 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. 2009 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47914663003 en http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.3 Vol.44 |
| title | Effect of hook size and seasonality on the artisanal long-line fishery of southern hake (Merluccius australis Hutton, 1872) in Chile |
| topic | Ciencias de la Tierra Selectivity catch rates fishing gear artisanal fishery Southeast Pacific Ocean |
| url | https://www.redalyc.org/articulo.oa?id=47914663003 |