Small water bodies are one of the most productive ecosystems, highly significant for the sustenance and viable of human life, plants and animals. There are various types of Small water bodies such as Doba, Pond, Dighi, Khal and Beel in Bangladesh. All of these types of small water bodies are almost equally distributed all over the country, except for the beel, which is a natural, saucer shaped depression. These are commonly used for bathing and washing, fisheries and aquaculture, irrigation, cattle feeding and duck rising etc. In spite of the importance these to the local economy there is no...