LIMNOLOGY AND ENDOCRINOLOGY OF FISHES

The word Limnology comes from the Greek; Logos and limne both mean knowledge. Limnology is frequently regarded as a subfield of environmental science or ecology. However, it is defined as "the study of inland waters," which include fresh and sometimes saline running and standing waters; natural or made by humans) This includes studying lakes, ponds, rivers, reservoirs, swamps, streams, bogs, marshes, and other wet lands. As a result, it is commonly referred to as the field of science that studies the biological productivity of inland waters and all of the factors that influence it (Welch, 1963).