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Email the author (Login required) Functional relationships between temperature and Brody’s coefficient in suspended culture of Argopecten purpuratus
DOI: https://doi.org/10.3856/vol44-issue2-fulltext-16
Abstract
Natural experiments have shown an improve growth in Argopecten purpuratus when temperature is higher. During El Niño events the velocity of growth can be twice comparing with non El Niño periods. However, recents studies have shown differences in growth velocity between Perú (El Carbón Beach), and Chile (Tongoy Bay), although temperature was similar values. To explain this difference the velocity of growth (determined the Brody’s coefficient in von Bertalanffy growth formulae, k) and the temperature (using accumulated thermal units, ATU) of culture at 10 m of depth were relationed using regression analysis. Results showed a high correlation between ATU and k at first and second month of age (R2= 0.69 and 0.80, respectively). Results may be useful in order to evaluate future performance in cultured cohorts, and to predict future growth patterns in bio economics models, when short, middle and long terms temperature forecasts are available for the study zone.
