Volume 51
Estimation of Growth and Mortality of Bay Anchovy. Anchoa mitchilli, in Florida Bay, Florida USA
Authors
Acosta, A. Download PDF Open PDF in BrowserOther Information
Date: November, 1998
Pages: 204-214
Event: Proceedings of the Fifty First Annual Gulf and Caribbean Fisheries Institute
City: St. Croix
Country: US Virgin Islands
Abstract
Growth parameters and mortality rates of the bay anchovy, Anchoa mitchilli, were estimated by using the ELEFAN method from length-frequency data collected during offshore seine surveys conducted throughout Florida Bay, Florida, from January 1994 to October 1997. The parameters of the von Bertalanffy growth model based on length-frequency analysis were Loo = 95 mm SL (TL=110 mm, 11.0 cm) and K = O.60/year. Results showed that seasonal growth is important ( e ~ 1, WP ~.8). The estimates of growth parameters in this study fall within the reported values of other engraulid populations and are consistent with the assumption that engraulids are small, fast- growing, and short- lived species. Natural mortality was 1.33/year and total mortality was Z = 1.50/year.