"A parasite that is killing tens of thousands of fish is blamed on low stream flow and warming waters, both impacts of climate change in the West."

"Federal scientists are finding increasing skin and liver tumors in bottom-feeding fish caught in several of Wisconsin's Lake Michigan tributaries that flow through areas with particularly severe environmental problems."

"New England is running out of mussels. The Gulf of Maine's once strong population of wild blue mussels is disappearing, scientists say."

If a kid catches a big walleye on the St. Louis River estuary in Duluth, the state warns her not to eat it. Ever.

"Scientists led by researchers with the U.S. Geological Survey have found an elevated number of cases of skin and liver tumors in white suckers in the Milwaukee, Menomonee and Kinnickinnic rivers — a discovery that suggests more work will be needed to remove contaminants from the waterways."

"In an unprecedented move, Montana Fish, Wildlife and Parks is closing 183 miles of the Yellowstone River from Gardiner to Laurel to all water-based recreation — fishing, wading, floating, tubing, boating."

"Teamwork from Maryland environmentalists — from elementary schoolers to nonprofit workers — could result in new oyster habitat, and consequently cleaner water, for the Chesapeake Bay. Maryland Coastal Conservation Association members and partners dumped 70 concrete reef balls into the bay on Thursday, the first deployment for the organization's Living Reef Action Campaign."

"The folks who write POLITICO’S Agriculture Tip Sheet were celebrating an anniversary Tuesday. Not their own, but the one-year anniversary of USDA’s proposed organic aquaculture standards being hung up in the Office of Management and Budget (OMB) at the White House."

"Rising global temperatures are clearly linked to increasing waterborne food poisoning, particularly from eating raw oysters, along with other nasty infections, a new study shows."

"Maryland’s ravaged Chesapeake Bay oyster population shows signs of revival inside the state-created sanctuaries that have been off-limits to harvesting for the past decade, according to a report from the Department of Natural Resources."