Pollution is, undoubtedly, the most frightening issue of concern among all recent environmental hazards. It has been established that aquatic ecosystem is mostly harmedby the impacts of pollution among all the types of ecosystems in India. Loss of aquatic diversity, to be more precise, loss of fish diversity is one of the commonest consequences of pollutionin aquatic environment. It casts serious threatto the human society mostly to those whose occupations are directlyrelatedto rivers, pond or other waterbodies eg., fishers, fish dealers etc. It has been reportedby severalauthorsthat more or less all the riversof this planet are being threatenedby gradualdegrading ecological conditions. Since, the productivity,especially fish yield, has decreased alarmingly, fishers, dependenton this riverfor long, are on the verge of alteringtheir occupationin most cases affecting the total socio-economicstructureof the riverside society. To developthe fishing industrya comprehensiveknowledgeon presentsocio economic condition of the fishermen community and their knowledge dispersal strategies should be reviewed.In orderto this, attempts have been done to preparea comprehensive review on the aforesaid topic.

Keywords: Socio Economic Structure; Fishermen Community; Knowledge Dispersal; Pollution; Diversity.