Limnology:
… is the study of inland waters. It is often regarded as a division of ecology orenvironmental science. It covers the biological, chemical, physical, geological, and other attributes of all inland waters (running and standing waters, both fresh and saline, natural or man-made). This includes the study of lakes and ponds, rivers, springs, streams and wetlands.[1] A more recent sub-discipline of limnology, termed landscape limnology, studies, manages, and conserves these aquatic ecosystems using a landscape perspective.
We saw this sign on the north side of Duluth, Minnesota.
