"Roughly 85 percent of the world’s oyster reefs have disappeared since the late 19th century, with many formerly prolific reefs rendered 'functionally extinct' because of overharvesting and other manufactured causes, according to a new study published in BioScience."

"Many of the world’s top shark-fishing nations have yet to develop plans to manage and conserve dwindling shark populations, despite a 2001 pledge to do so, a new report from two conservation groups says."

"New Jersey has negotiated removal of three dams on the Raritan River as compensation to the public for harm to natural resources from pollution at a refinery and three polymer plants operated by or affiliated with the Houston-based El Paso Corporation."

"The striped bass is in trouble again. ... and some biologists say the problem may not be overfishing this time: It could be the weather."

"Tuna and swordfish collected from some California grocery stores and sushi restaurants contained mercury levels as much as three times the threshold that authorizes federal food regulators to pull seafood from shelves, according to a study by an environmental health group."

Lobstermen and environmentalists are concerned about pesticides used by aquaculture operators in Passamaquoddy Bay to kill sea lice that infest salmon holding pens.

"Although many shark species are still at risk of extinction, around the world shark conservation advanced last year. In Washington on Tuesday, President Barack Obama signed into law the Shark Conservation Act of 2010, which increases protection for sharks from the practice of shark finning...."

"The House adopted legislation Tuesday aimed at protecting sharks off U.S. coasts, though an exemption in the bill has raised concerns among federal fishery officials."