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Articles by S. M. Nurul Amin
Total Records ( 2 ) for S. M. Nurul Amin
  A. K. Yousuf Haroon , A. Razzaque , S. Dewan , S. M. Nurul Amin and S. L. Rahman
  Estimated fishing mortality and exploitation values for L. rohita and L. calbasu indicated that their stocks are under heavy fishing pressure. Exploitation values were much higher than the optimum level of 0.5 and remarkably higher than the Emax values. Mean annual catch of L. rohita in 1999 and L. calbasu in both 1998 and 1999 were much higher than their estimated maximum sustainable yield (MSY). Whereas the exploitation values for L. gonius were below the optimum level in 1998 and just at optimum in 1999. The stock of L. gonius is almost under optimum fishing level. Mean annual catch of L. gonius were lower or almost equal to its estimated MSY value in both the years. The Lc/L and M/K values also confirm the above conclusion for L. rohita, L. calbasu and L. gonius.
  M. A. Rahman , S. M. Nurul Amin , G. C. Haidar and M. A. Mazid
  Population parameters of Tenualosa ilisha were estimated using FISAT software with length-frequency data collected from different landing centre of Bangladesh. The von Bcrtalanffy growth parameters L∞ and K for the species were 61.50 cm and 0.83 yr–1 respectively. The annual rate of natural (M) and fishing mortality (F) were found to be 1.28 and 2.01 respectively. The estimated values of the exploitation rate (E) using the length converted catch curve and Virtual Population Analysis were 0.61 and 0.346 respectively. Emax was found to be 0.697. The recruitment pattern of this species was continuous with one peak per year. The present investigation clearly showed the over fishing (E>0.50) condition for T. ilisha in Bangladesh. The estimated length weight relationship for the combined sex was found to be W = 0.01351*TL2.974.
 
 
 
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