Selection of the study area: Selection of the area is an important step for the study. Based on the problem and potentialities, I selected Eshulia beel in Gouripur upazilla under Mymensingh district. Eshulia beel is a small beel which is 25 km east from the Mymensing town. The study was conducted for a period from February to November 2013. This is a semi-closed and more or less rectangular shaped inland waterbody. Rainfall is the main source of water in this beel, whereas, during monsoon period the beel is connected through several channels to the river Shuria. The beel area usually flooded every year. The maximum time of the year it remains under water. During rainy season the entire beel inundate with water average depth become 5-6 ft. After rainy season most areas of the beel dried with the exception of some natural deep pockets and a canal in the beel. The beel is also used for the culture of paddy and other crops in the dry season. Fishes and other aquatic resources were harvested by the local people living in surrounding villages of the beel named Hatshira, Daulotpur, krishnopur etc. Selection of attributes: For the fulfillment of this study two attributes were selected primarily such as present status of fisheries and socio-economic aspects of the fishers. Present status of fisheries: Most of the people in the area of Eshulia beel are fishers. Some are farmers and businessmen. Different types of fishes are found in this beel such as rui, catla, mrigal, kalibaus, pangas, mirror carp, silver carp, puti. Different types of nets are used for catching fishes such as Jhaki jal, Dharma jal, Thela jal, Unta Chai, Current jal, Ber jal, Bitte chai, Icha chai etc. Socio-economic characteristics of the fisher community: Eshulia beel fisher community comprises 4 fisher groups and 2 women groups living adjacent areas of the water body. For the assessment of the impact of management two interview schedules were prepared to collected information about household demography, literacy, health, education and awareness, housing, sanitation, food security, land ownership, job during lean season, environmental awareness and practice, access to common property resources (CPR) participation in local institutions, assets, livelihood, animal holding, income, savings, loan available and repayment of loan was collected. Preparation of the survey schedule and questionnaires: To collect data, preparation of the survey schedule and questionnaire are of course a crying need for survey method. In order to get a complete picture of the present status of fishery, fishing activities of Eshulia beel and to assess the objective of the study, a questionnaire was prepared. The questionnaire was developed in a logical sequence of that the target group could answer chronologically. Questions related to the fishermen and their socio-economic status, species available in the beel, species abundance, seasonal variation and disappearances of fishes what were predominantly available in the beel, fishing gears, fishing duration, peak harvesting season, beel management strategies and other aspects of Eshulia beel fish biodiversity were included in the questionnaire. Data collections: Data were collected both from primary and secondary sources. The survey was conducted and primary data were collected through direct interview with respondents. Actual data were collected from secondary sources since there were no other alternatives. Required data were collected from Upazilla fisheries office, BMC oxecutives, Caritas office, Gouripur and regional office, Mymensingh, reports, journals, bulletins and theses. All possible efforts were made by the researcher to ensure the collection of reasonable accurate information from the field. When the interview was over, the information was checked carefully before leaving the study area and other confusion arise was rationalized and corrected by the help of volunteer, fishermen and researcher to keep the consistency of data. For this study a combination of questionnaire interview, Participatory Rural Appraisal (PRA) tool such as Focus Group Discussion (FGD) and cross-check interviews with key informants were used for fishermen. Period of the data collection: This study was based on both primary and secondary data. Primary data were collected during the month of February to June, 2013. The secondary data covered the period from July to November, 2013. Questionnaire interview: To collects data with questionnaire interviews, simple random sampling method was followed in 40 fishermen in the Eshulia beel. The interview of fishermen was made at home or beel sites during fishing. For the each interview of fishermen required about one hour. Questionnaire survey and focus group discussion (FGD): Participatory Rural Appraisal (PRA) was a group of methods to collect information from target group in participatory fashion. The advantage of the community, the information methods was likely to be more accurate. The participation of fishermen provided opportunity for crosschecking individual opinions as well as allowing the community to discuss the issues that they felt important, rather than responding to a questionnaire. For the present study, the PRA tool such as Focus Group discussion (FGD) was conducted with fishermen. In the study, FGD was used to get an overview of particular issues such as existing fish composition, fishing systems, management of the beel and also improving the production of the Eshulia beel an as well as its fish biodiversity, socio-economic conditions of fishermen etc. A total of three FGD sessions were conducted in the beel area where each group size of FGD was 10 to15 fishermen. Cross-check interview: After collecting the data through questionnaire interviews and FGDs, it was necessary to check the information for justification of the collected data. If there were any items contradictory, then information’s were collected from key informant. Cross-check interviews were conducted with key person such as, Upazila Fisheries Officer (UFO), and District Fisheries Officer (DFO), Scientific Officers of BFRI, School teachers, local leaders, NGO workers where information was contradictory or requested for further assessment. The interviews of the respondents were conducted in their office during office hour or in houses. Data processing and analysis: The collected data were coded, summarized and processed for analysis. These data were verified to eliminate all possible errors and inconsistencies. The analysis of collected data was mainly based on tabular description technique. Tabular technique was applied for the analysis of data by using simple statistical tools like averages and percentages. Collected data has been analyzed by Microsoft Excel.