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| Brown, D.R.; Leonarduzzi, E.; Averbuj, A.; Livore, J.P.. |
| Argentine anchovy (Engraulis anchoita) eggs and larvae abundance distribution patterns in the Argentine northpatagonian littoral during January-April 2001 were analyzed. As the season progressed, a process of decline in the reproductive activity was observed. Larval growth and mortality rates were established. Age determinations were performed analyzing otoliths daily increments. The 0.43 mm day-1 growth rate average did not show space-time differences, fact attributed to the homogeneity of the thermal field. The 0.32 d-1 January natural mortality rate was determined by exponential decline. Mortality rates, estimated with the mortality-aggregation model, were considered dependent on the larval size. The value ranges (d-1) were 0.07-0.49, 0.05-0.61 and... |
| Tipo: Journal Contribution |
Palavras-chave: Fish larvae; Growth; Otoliths; Mortality. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5500 |
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