"For ten days across recent summers, researchers aboard the University of Delaware research vessel Hugh R. Sharp collected water samples from the mouth of the Susquehanna River to Solomons Island in a first-of-its-kind investigation. They wanted to know when and where the waters of the Chesapeake Bay were turning most acidic."

"Bulldozers, excavators and construction workers are bulling their way into Patapsco Valley State Park near Baltimore this fall. They’re the advance guard for a task force charged with removing a dormant hydroelectric dam on the Patapsco River and reopening a big stretch of the river to spawning runs of migratory fish."

"Investigators have confirmed that a federal water agency misspent $32 million in funds meant to protect fish and wildlife in the Klamath basin of California and Oregon, a finding that Obama-era officials attempted to sideline after whistleblowers first alerted them to it."

"The Lummi Nation declared a state of emergency Thursday after a weekend spill of Atlantic salmon from a fish farm in San Juan waters."

"A new study suggests warming sea temperatures could result in smaller fish sizes."

"A beloved, cold-loving state fish is in danger of overheating."

"The confiscation of the Chinese ship and arrest of its 20 crew in the Galápagos show just how hard it is to protect marine sanctuaries.""

"The best way to keep invasive Asian carp from entering and wreaking havoc on the Great Lakes would involve a series of water jets, flushing locks and electrical barriers on the Illinois River, according to a long-delayed Army Corps of Engineers report out today."

"PASCO, Wash. -- The fate of the Northwest salmon may be decided by the way you use your heater and your air conditioner."

"Genetically modified salmon have been approved for sale in the United States, but labeling complications have prevented them from coming to market. In Canada, however, according to a report released Friday by the company AquaBounty, five tons of genetically modified salmon filets have been sold so far."