Professional Memberships/Position

• Full Member- Asian Fisheries Society (AFS), Malaysia. Since 1989.
• Life Member-The Zoological Society of India (ZSI), Calcutta, India.
• Life Member-The Zoological Society of Bangladesh (ZSB).
• Life Member-Biodiversity Research Group Bangladesh (BRGB).
• Life Member, Founder Member and ex-Joint Secretary - Bangladesh Fisheries Research Forum (BFRF).
• Life Member and Secretary-Biodiversity Conservation and Environmental Management (BCEM) Research Forum.
• Life Member (#L1017).-Bangladesh Association for the Advancement of Science  (BAAS).
• Life Member (#L212)-Association of Bangladesh Commonwealth Scholars (ABCS).
• Life Member- Chittagong Science Council
• Member (#25)- BPA (Bangladesh Paribesh Andolon).
• Member (#1548)-Asiatic Society of Bangladesh.
• Member (#336).-Bangladesh Biggani Samiti (Bangladesh Scientists Association).     
• Active Member# FA21318,-American Fisheries Society (AFS),USA.(1989-2008).
• Member-National Geographic Society- Washington, D.C., USA, (1997-2003).
• Member -Freshwater Biological Association (FBA), U.K. (1989-1994).
• President, Chittagong University Teachers and Officers Club (Campus), 2016
• Vice President- BIIT (Bangladesh Institute of Islamic Thought), Chittagong Chapter.
• President-Manab Koyllan Parishad, Chandanaish, Chittagong (since 2014)
• President, Chittagong University Central Mosque Committee (2016-2018)
• Chairman, International Islamic UniverisityChittagong (IIUC) Central Mosque Committee
• Chairman, Center for Research & Publication (CRP), IIUC
• Chief Editor, (1) IIUC Studies, (2) IIUC Business Review & (3) Dirasat Jamiah
• Chairman, Library Management Committee (LMC), IIUC
• Advisor, Information Technology Division (ITD), IIUC
• Editor, Bangladesh Journal of Environmental Science