Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Asian Journal of Biological Sciences
  Year: 2008 | Volume: 1 | Issue: 2 | Page No.: 69-76
DOI: 10.3923/ajbs.2008.69.76
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Age, Growth and Mortality of Hilsa Shad, Tenualosa ilisha in the River Meghna, Bangladesh

M.S. Ahmed, A.S.M. Sharif and G.A. Latifa

Abstract:
The anadromous shad Tenualosa ilisha (hilsa) is one of the most important species in coastal and estuarine waters, which contributes over 13% of the total fish production of Bangladesh. Age and growth of this valuable species from the River Meghna Bangladesh, were studied with transverse sections of otoliths. Otoliths opaque zones that formed every year were thought to be annual rings. Growth of this species was rapid during the first two years, reaching 37.0 cm in fork length. Most of the specimens were 2-4 years old and accounted for 90% in total. The maximum age recorded was 6 years with 52.5 cm in fork length. The von Bertalanffy growth parameters L and K for this species were 52.0 cm and 0.71 for year-1, respectively. The total, natural and fishing mortality were Z = 2.61 year-1, M = 1.22 year-1 and F = 1.39 year-1, respectively. The exploitation rate, E = 0.53, revealed a high fishing pressure on the stock. The estimated length-weight relationship for the combined sexes was found to be W = 0.0225*FL2.880. The study indicated that age and growth of T. ilisha can be determined using its sectioned otolith and process needs to be validated.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Length-Weight Relationship and Growth Parameters of Kingfish (Scomberomorus commerson) in the North of the Persian Gulf
  •    Preliminary Study on Physico-chemistry and Comparative Morphometric Characterisation of Cynothrissa mento (Regan, 1917) from Ologe, Badagry and Epe Lagoons, Lagos, Nigeria
  •    Growth Characteristics of Slender Silver-biddies Gerres oblongus (Pisces: Perciformes) from the Jaffna Lagoon, Sri Lanka
  •    Population Dynamics and Stock Assessment of Hilsa Shad, Tenualosa ilisha in Iran (Khuzestan Province)
How to cite this article:

M.S. Ahmed, A.S.M. Sharif and G.A. Latifa, 2008. Age, Growth and Mortality of Hilsa Shad, Tenualosa ilisha in the River Meghna, Bangladesh. Asian Journal of Biological Sciences, 1: 69-76.

DOI: 10.3923/ajbs.2008.69.76

URL: https://scialert.net/abstract/?doi=ajbs.2008.69.76

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 

Curve Bottom