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Articles by S.M. Nurul Amin
Total Records ( 4 ) for S.M. Nurul Amin
  S.M. Nurul Amin and M. Zafar
  In the present study age, growth and virtual population analysis (VPA) has been estimated by the FiSAT program from length-frequency data collected from the Kutubdia channel of the Bay of Bengal. Growth parameters L ∞ and K were found to be 16.80 cm and 1.30/year, respectively. This fish attained 12.06 cm at the end of one year. The estimated length-weight relation for the combined sex was found to be W=0.00383TL2.801. The asymptotic weight (W ∞ ) was 10.36 g. The highest peak of fishing mortality (F) occurs in the length range between 12 and 14 cm.
  Md. Muhibbullah , S.M. Nurul Amin and A.T. Chowdhury
  An attempted has been made to know the condition of soil and water of the Sundarban mangrove forest of Bangladesh by applying standard method. Soil pH was varied from 6.3 to 7.13. Organic matter of soil was found 7.63, 6.73, 6.67 and 6.67 at Sharankhola, Chandpai, Nalianala and Buigoalini, respectively. The average percentages of carbonate content in the soil were varied 12.33-17.13. The soil of Oligohaline zone of Sundarban mangrove forest is rich in calcium followed by magnesium and then potassium. The percentages of silt and clay were higher than sand in all study areas. The conductivity of water was found 270, 300, 7800 and 12300 (Micromhos/cm) in the river Rupsha, Passure, Shipsa and Arpangasia, respectively. Dissolved chloride in the water was found 200, 550, 2800 and 7200 (mg L 1) in the river Rupsha, Passure, Shipsa and Arpangasia, respectively.
  A. Arshad , S.M. Nurul Amin , S.S. Siraj and S.B. Japar
  Present research records for the first time, the occurrence of the sergestid shrimp Acetes intermedius in Peninsular Malaysia. A taxonomic account of this shrimp is provided. Notes on its habitat and population characteristics were examined based on 995 specimens collected from the Klebang Besar, coastal waters of Malacca, Peninsular Malaysia during February 2005 to January 2006. Size-frequency distribution revealed that the mean size of females consistently exceeded that of males throughout the year (TL range: 15-27.50 and 13.50-33 mm for males and females, respectively). The overall yearly and the monthly sex ratio were in favor of females. Asymptotic length (L4) and growth co-efficient (K) was estimated as 34.65 mm and 1.50 yearG1. The exponent b (2.979) of the length-weight relationship for males was found near to the isometric value (b = 3.0) and positive allometric growth was observed in females and combined sexes (b = 3.227 for females and b = 3.249 combined sexes). The asymptotic weight was calculated as 211.21 mg. The overall average growth rate of A. intermedius showed 2.10 (` 0.88) mm/month in the coastal waters of Malacca.
  G.C. Haldar and S.M. Nurul Amin
  Population dynamics of male and female T. ilisha in Bangladesh water were studied using the length frequency based analysis of FiSAT software to evaluate the growth parameters, mortality rates, exploitation levels, Maximum Sustainable Yield (MSY) and the corresponding fishing mortality. The study reveals that the fishes are harvested at a level than the optimum fishing mortality. The fishing pressure should be reduced to about 1.08/year, i.e. 9% reduction from the present level of mortality per year for obtaining MSY, 235,130 tones.
 
 
 
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