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Articles by Abdur Razzaq Joadder
Total Records ( 3 ) for Abdur Razzaq Joadder
  Abdur Razzaq Joadder and M.D. Hossain
  The pattern of food and feeding habit of brakishwater gold spot mullet, Liza parsia (Hamilton) was studied during the period from March 1998 to February 2000. The fish is a herbivorous, feeding mainly on algae (36.55%), higher plant parts (17.19%), protozoans (12.88%), crustaceans (16.46%), debris, sand and mud (12.83%) and unidentified food materials (3.69%) by weight. Electivity analysis showed that the fish avoided zooplankton and strongly selected some genera of phytoplankton (Volvox, Diatoma, Nostoc, Anabina and Ulothrix).
  Abdur Razzaq Joadder
  Length-weight relationship and relative condition factor (Kn) of freshwater fish Bar-eyed Gobi: Glossogobius giuris (Hamilton) from the northern part of Bangladesh. They were studied from 627 specimens ranging from 5.6-23.8 cm in total length for 6 months from July 2003-December 2003. Length-weight relationship is shown by the following equations: Log w = -1.8419 + 2.768xlog L (for males) and log w = -1.708 + 2.667xlogL (for females). The relatives condition factor (Kn) was determined for either sex separately. Mean Kn for males and females was found to be 1.0555 and 1.00465, respectively. The length-weight relationship and relative condition factor shows that the growth of G. giuris is satisfactory in the population that freshwater fish of the "Atrai river" in Noagaon district.
  Abdur Razzaq Joadder
  Socio-economic condition of fishermen of Mail beel was conducted during the period of September 2005 to June 2006. Interviews were taken from different intermediaries like aratdars, baparies, farias, retailers and fishermen. The Socio-economic characteristics like age, family size, educational status and daily income of members of fishermen of around the Mail beel area were studied. In this connection earnerís dependency was also important aspect. The age structure showed that 31-40 years age groups were mainly engaged in fishing and the percentage was 28.57 in average of total population. The next groups were 41-50 age group (22.85%), 51-60 age group (8.57%), above 60 age group (2.85%), 20-30 age group (22.85%) and below 20 age group (14.28%), respectively. The total population study revealed that there were 55.84% male adult and male children, 44.16% female adult and female children population. The average percentage distribution is 28.57% that show the highest proportion remaining in the income group of Tk. 31-40. Next 20% of Tk. 51-60, 14.28% of Tk. 41-50, 11.42% of Tk. 61-70, 8.57% of Tk. 71-80, 5.71% of Tk. 81-90, 8.57% of Tk.21-30, 2.85% of Tk. 100 above of the number of fishermen of the Mail beel of Mohanpur. The birth rate was higher than income structure and life standard was too low to maintain their whole family. It is necessary to reduce the role of middlemen to maximize the returns for fishermen. The socio-economic status of the fishermen could be developed through increasing education and giving technical support. Overall, the socio-economic status of the fishermen is very dull and fishermen community in the study area is poorer among the poor.
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