limnology

noun

1. (countable, uncountable)The science concerning the biological, physical and geological properties of fresh water bodies, especially lakes and ponds.

   “Although limnology is a young discipline, it has, over the past century, experienced marked growth. Its early descriptive period was a long one, given the enormous diversity of biota and environments in freshwater ecosystems.”

   “The exercises in this book were set forth initially because of our frustrations in teaching such a complex, multifaceted discipline as limnology.”

   “Reservoir limnology and water quality management are associated with functions such as flood control, hydropower generation, irrigation, and fishery.”