Save the breeding ground

Halda is one of the major rivers in the south-eastern region of Bangladesh. It is one of the world's major natural sweet water fish breeding ground from where carp fish (Ruhi, Katol, Mrigel and Kalibaush) eggs are collected by the fishermen. The eggs are collected during April to June almost every year. Eggs are hatched to produce fries, and these fries are supplied to different regions of the country. But in recent years the availability of eggs and fries has fallen abruptly. There are several reasons behind it:
* Indiscriminate catching and killing of brood fishes;
* Pollution of the river by industrial waste;
* Unplanned construction of a number of sluice gates for irrigation purposes;
* Destruction of spawning ground
So I think the government and other authorities should take immediate steps to save this sweet water breeding ground.