Prior to this survey, researchers believed that the lake had been frozen for millions of years and that it contained no life.

2 min read Freshwater ecosystems are essential for human survival, providing the majority of people's drinking water. The ecosystems are home to more than 40 percent of the world's fish species.

Freshwater is our most precious natural resource, but high demand and limited supply threaten freshwater ecosystems and ensure that human societies will be increasingly challenged by water scarcity ...

Other examples of freshwater fish include tilapia and walking ... that 90 percent of the global freshwater catch comes from ecosystems that are stressed by “above average” pollution ...

The study of freshwater ecosystems, including the physical and chemical processes that occur in streams, lakes, and their interactions with the biota. Ecological concepts are applied to problems of ...

Eutrophication is a leading cause of impairment of many freshwater and coastal marine ecosystems in the world. Why should we worry about eutrophication and how is this problem managed ...

Examples include fish inventories with DNR biologists ... and skills to: Understand and research freshwater ecosystems, including biology, chemistry, hydrology, and limnology, along with the ...