DNR, local conservation groups hailing the Greenside darter's return to the Lower Rouge as a positive result from years of cleanup and restoration.

Lurking beneath the murky surface of the Mississippi River are creatures so strange that experts who study them still marvel ...

As they swim around, fish leave DNA fragments behind them, for example via their skin or their excrements. Once collected and analyzed, these indicators allow scientists to determine all the species ...

Almost a quarter of all freshwater species are threatened with extinction. The removal of human-made barriers from rivers, such as dams and weirs, is a popular way to restore water flow and sediment ...

Husband and wife fishing duo Cole & Jay explore a rich river location to see how many different fish species they can catch ...

One-fifth of fish species in the Mekong river face the threat of extinction, according to a new report from a coalition of regional and international environmental groups. The Mekong -- among the ...

Over recent decades, four species of invasive carp have become “one of the most urgent, wide-ranging and complex ...

The Colorado River is getting a new line of defence against invasive species, with a $29,595 environmental DNA autosampler ...