In the absence of fortune-telling, how can one predict the long-term consequences of habitat restoration efforts for fish? Fish habitat restoration is a major focus around the world, taking many different forms such as...
Oceans are experiencing both warming temperatures and increasing acidification. Rising oceanic carbon-dioxide levels lead to a decrease in pH, resulting in a phenomenon called ocean acidification. These physicochemical changes are expected to impact ocean...
Northern Indiana is home to around 450 natural lakes created from the movement of glaciers across the landscape thousands of years ago. In the cold, oxygenated waters of some of these glacial lakes, a...
You’re in a canoe floating down the river, and you hear a splash not far off. By the time you turn your head, the cause of this sound is now a mystery, gone back...
Lake Erie has a long history of cultural eutrophication (excessive nutrient inputs), algal blooms and low oxygen levels. A widespread campaign in the 1970s to eliminate phosphorus from household detergents, fertilizers and other products...
Many fish in the Amazon river floodplain, including several economically important species, exhibit some form of migration behavior. Some, such as the catfish Brachyplatystoma rousseauxii, migrate the entire length of the Amazon river. Other...
I stood at the cliff’s edge, looking down on the winding river below me and watched schools of Steelhead as the migrated up a gorgeous river in Washington State. The fish moved through the...
The year of 1894 marked the first time Rainbow Trout Oncorhynchus mykiss, a species sought out by anglers on all six continents except Antarctica, were introduced into the streams of Australia. Rainbow Trout are...
Our need for water to power our homes, irrigate our fields, and control flooding has resulted in the obstruction of rivers through the construction of dams. We are aware of the pressures this creates...
In recent years, shark populations have seen a significant decline due to a variety of factors including fishing pressure. Highly migratory, large bodied sharks are particularly susceptible to fishing pressure due to the wide...
