Researchers found the virus itself doesn’t kill the fish. However, at higher water temperatures, it can weaken their immune system and allow other infections to spread, which ultimately finish off the fish.
This "underdog" of aquatic animals can filter up to 600 gallons of water per month. Working together, mussels can dramatically clean the rivers where they live. Now, Philadelphia is banking on just that.
Residents and environmental advocates are calling for tough limits on water pollution from a coal-fired power plant situated a few miles upstream from the water intake for the Pittsburgh Water and Sewer Authority.