Freshwater and Estuarine Fishes: General parameter to differentiate freshwater from estuarine habitat is the salinity level of water. Freshwater contains less than 0.5 ppt (Parts Per Thousand) salinity whereas estuarine water contains moderate salinity (generally 14-17 ppt). We can easily
Data Deficient (DD) Freshwater Fishes of Bangladesh
A Data Deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as not enough data to make an assessment of its risk of extinction. According to IUCN Bangladesh (2015a, b) two