DOI:10.29111/ijlrst ISRA Impact Factor:3.35, Peer-reviewed, Open-access Journal
Research Paper Open Access
International Journal of Latest Research in Science and Technology Vol.3 Issue 5, pp 46-52,Year 2014
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Received : 31 October 2014; Accepted : 31 October 2014 ; Published : 31 October 2014
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Article No. | 10392 |
Sex ratio, morphometric characteristics, age and growth for four fish species from Bulgarian Black Sea were examined. A total of 2013 individuals from 4 families, were caught between May 2006 and December 2010. Female: male sex ratio varied from 1:0.3 in Trachurus mediterraneus ponticus to 1:1.9 in Sarda sarda. According to the age readings, distribution varied from I to VI year. The von Bertalanffy equation and growth performance index were determined by FiSAT II software in Alosa imaculata, Engraulis encrasicolus, Trachurus mediterraneus ponticus and Sarda sarda. Asymptotic values for total length (L∞) ranged from 82.97 cm for S. sarda to 14.60 cm for E. encrasicolus. Growth rates (k) varied from 0.4794 year−1 for E. encrasicolus to 0.1044 year−1 for T. mediterraneus. The data sets were limited in most cases, thus this study provides preliminary population parameters only, but for species for which information is scarce.
Copyright © 2014 Maria YANKOVA et al. This is an open access article distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Maria YANKOVA , " Preliminary Estimates Of The Population Parameters Of Four Species In The Bulgarian Black Sea Coast ", International Journal of Latest Research in Science and Technology . Vol. 3, Issue 5, pp 46-52 , 2014
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