Bangladesh being a first line littoral situation of the Indian Ocean has a very good source of sea possessions in the Bay of Bengal. The fatherland has an limited trade and industry zone of 41,000 square miles (110,000 km²), which is 73% of the country’s land area. On the other hand, Bangladesh is a small and developing country overloaded with almost unbearable heaviness of human population. In the past, people of Bangladesh were mostly dependent upon land-based proteins. But, the continuous process of industrialization and urbanization consumes the limited land area. Now there is no other way than to produce the vast under water protein from the Bay of Bengal, which can get together the country's demand.