Gonads annual development of Kelee shad, Hilsa kelee (Cuvier, 1829) from the coastal waters of Pakistan and its spawning ecology

Gonads annual development of Kelee shad, Hilsa kelee (Cuvier, 1829) from the coastal waters of... Annual reproductive cycle and spawning ecology of Kelee shad, Hilsa kelee were studied. The sex ratios did not exhibit as 1: 1; whereas 69.19% were females. On the basis of histological examination, the maturity of female gonads of H. kelee was categorized in eight developmental stages: immature, developing, fully developed, hydrated, running ripe, partially spent, spent and post spawning. Whereas males of this species were categorized in five developmental stages: immature, developing, ripe, partially spent and spent. This fish is repeatedly spawner and spawns twice per year: in April to June and August to October. The values of exponent b in the length weight regressions (W = al b ) slightly varied in males b = 3.133, R 2 = 0.96 and P < 0.01 and females b = 3.143, R 2 = 0.95 and P < 0.001. The linear regressions of length-weight relationships were significant for both males and females. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Gonads annual development of Kelee shad, Hilsa kelee (Cuvier, 1829) from the coastal waters of Pakistan and its spawning ecology

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Publisher
Springer Journals
Copyright
Copyright © 2012 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074012010105
Publisher site
See Article on Publisher Site

Abstract

Annual reproductive cycle and spawning ecology of Kelee shad, Hilsa kelee were studied. The sex ratios did not exhibit as 1: 1; whereas 69.19% were females. On the basis of histological examination, the maturity of female gonads of H. kelee was categorized in eight developmental stages: immature, developing, fully developed, hydrated, running ripe, partially spent, spent and post spawning. Whereas males of this species were categorized in five developmental stages: immature, developing, ripe, partially spent and spent. This fish is repeatedly spawner and spawns twice per year: in April to June and August to October. The values of exponent b in the length weight regressions (W = al b ) slightly varied in males b = 3.133, R 2 = 0.96 and P < 0.01 and females b = 3.143, R 2 = 0.95 and P < 0.001. The linear regressions of length-weight relationships were significant for both males and females.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Mar 27, 2012

References

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