In 21 may 2018, successfully completed the event “Happy Fish and Happy life” in Bangladesh through Biodiversity Conservation & Fisheries Research Center (BCFRC). All participants are joined in the paper cutting program to concern dam removal for free swimming Happy Fish. Happy fish man Md Muzammel Hossain is leading the awareness program from 2014. According to his idea all children, student and teacher join in the event and celebrate world fish migration day 2018. This event was also held in the river of Buriganga and Turag, Dhaka. Children visited river to observe river dolphin and fish. Children also observe how to operate fishing gear and how to catch fish. Buriganga and Turag river pass is the most important water body in the capital city of Dhaka, Bangladesh. Happy fish man recorded 56 freshwater fish from most polluted river Buriganga which has published in the Bangladesh Journal of Zoology , Vol 45, No.1 (2017). During his research he has also concern human health risk in the local area of Buriganga River, Dhaka which has published in the Springer : Environmental Science and Pollution Research 22(20) . Due to water pollution most of the fish was fingerling and can’t grow in the water for long time that it was ecological risk for cancer. Local people were caught the fish to eat on lunch and dinner time but local people don’t know about health risk. In 2016 to 2017, as a research fellow he has completed another article from sea sources Bay of Bengal through Department of Zoology, Jagannath University, Dhaka which has published in the Ecotoxicology and Environmental Safety journal.
