Fish Habitat Section of the American Fisheries Society

Improving our Impoundments

Dams are concrete roadblocks along an aquatic road; a perceptible challenge to habitat connectivity. Impounding rivers creates reservoirs, turning a natural river system into a lake. This can affect water temperature and flow regimes,...

Polar Cod Under the Pack Ice

Pack ice is a group of large pieces of floating ice that move together in almost continuous masses due to wind and/or ocean currents. What happens below the pack ice? This has been a...

Rising concerns in the Amazon floodplain

The Amazon River basin is one of the richest ecosystems in the world. Due to its variation in depth, temperature, salinity, acidity, velocity and nutrient loads, the river has the highest fish diversity in...