Area Setting and Study Sites Profile: The study was conducted in the Tanguar Haor wetland that is located in the northeastern part of Bangladesh, between 25º06' and 25º11' N latitude and 91º01' and 91º06' E longitude under the administrative jurisdiction of the Dharmapasha and Tahirpur Upazilas of Sunamganj district in Sylhet division. The TH comprises approximately 10,000 ha of land (160 km2), approximately 100 km2 covered by the haor area during monsoon, and 28.02360 km2 exclusively regarded as perennial as wetlands. The TH wetland directly provides a range of social, economic, and environmental benefits and services to 70,000 people inhabiting the 88 villages surrounded by the hoar basin. Among the inhabitants, the fishing community mainly depends on the fisheries resources of the TH. Therefore, three fishing communities inhabiting the Indrapur, Joypur, and Lamargaon villages in Tahirpur Upazila were selected for the study. One of the villages was selected from a short distance from camp and/or town (Joypur) and the other two from both sides of it (one from north and the other from south) with longer distances. Primary and Secondary Data Collection: A semi-structured questionnaire that contained basic qualitative questions related to fish conservation regulations that collected primary data from the fishermen to check for compliance and non-compliance regulations was made early, pre-tested, and finalized. In addition, a field survey was conducted for four months, starting from October 2019 to January 2020. Empirical primary data were collected by employing a set of Participatory Rural Appraisal (PRA) tools, i.e., individual interviews (II), focus group discussion (FGD), and key informants interviews (KII) in the study sites. A total of 204 semi-structured questionnaires were based on individual interviews with fishers, 3 FGDs with a checklist (group size: 5–10 people sit for 45–90 min), and 14 cross-checking KII in selected fishing villages the TH wetland. We have taken more extensive size sampling from larger and more densely populated villages (70 from Indrapur and 80 from Lamargaon). A likely small sample was taken from small and less densely populated ones (for example, 54 from Joypur). Individual interviews with fishers, fish traders, and entrepreneurs involved with fisheries-related activities were conducted according to convenient setup, e.g., in their house, workplace, fish market, fishing, boat, and time frame, i.e., 45–60 min. In addition, FGDs with resource users and cross-checking KII with key informants, e.g., Upazila Fisheries officers (UFO), officials of the Department of Environment and Forest department, NGO staff, Union Parisad members, members of the co-management committee, and knowledgeable persons were done based on face to face personal commination in accordance with pre-schedule timing. Apart from primary data, secondary documents from scholarly published literature collected from ScienceDirect, Scopus, Google scholar, official government regulations and NGOs’ reports related to TH management were also interpreted. Almost half of the respondent fishermen were illiterate at each study site. Moreover, fishing is the primary source of income generation for 74%, 75%, and 67% of fishers at Indrapur, Joypur, and Lamargaon, respectively. Data Analysis: Qualitative analyses require adequate descriptions for each level of consequence and likelihood; the more precise, the less ambiguity in assigning ratings, Fletcher, 2005. The questionnaire covered four different segments, including (i) the socio-economic status of respondents; (ii) participants’ knowledge of fishing regulations and their role in haor fisheries production; (iii) perception of fish act enforcement; (iv) perceptions of the effectiveness of fish act implementation. In addition, Likert scale responses were used to assess community perceptions on law enforcement realities and implementation effectiveness through an informal interview. The quantitative data were compiled in MS excels and analyzed by SPSS (Statistical Package for Social Science, Version 22) software.