Population dynamics of two jewfishes Jhonius argentatus and Johnieops vogleri) in the coastal waters of Bay of Bengal, Bangladesh
Population parameters of Jhonius argentatus and Johnieops vogleri in coastal waters ofBay of Bengal, Bangladesh were estimated by using FiSAT programme. The vonBertalanffy growth parameters, extreme length (cm) and growth constant K (year ·1) werefound to be 46.50 and 0.59 for J. argentatus, and 33.50 and 0.85 for J.vogleri The Loc(cm) and Z/K estimates provided by Wetherall plot were 46.694 and 1.791 for J.argentatus, and 31.25 and 2.623 for J. vogleri. The annual rate of natural (M) and fishingmortality (F) were estimated as 1.12 and 0.78 for J. argentatus, and 1.56 and 1.28 for J.vogleri. Rate of exploitation (E) was estimated as 0.41 for J. argentatus and 0.45 for J.vogleri. About 80.04% of J. argentatus were found to be recruited during peak pulses(April-May) and 19.96% during lean pulses (October-November) and 85.75% J. vogleriduring peak pulses (May-July) and 14.25% during lean pulses (September-October). Thegrowth performance index(<!>') was 3.11 for J. argentatus and 1.93 for J. vogleri. The totallength and body weight relationship was found to be W = 0.0403 TL25723 for J. argentatus and W = 0.0907 TV3482 for J. vogleri.
| Main Authors: | , , , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
2002
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| Subjects: | Fisheries, Population dynamics, Jhonius argentatus, Johnieops vogleri, |
| Online Access: | http://hdl.handle.net/1834/33233 |
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