The acting harbormaster says the die-off apparently is the result of predation by bluefish and stripers.
Casco Bay
How do cruise ships stack up in environmental impact?
Portland is set to see its biggest cruise ship ever this month. And carbon footprint-wise (and counterintuitively) bigger may be better.
Green slime points to pollution of Casco Bay
This summer’s algae blooms in the Portland area signal potential threats to marine life.
Four people rescued from Casco Bay after their sailboat overturns in squall
The storm swept through Portland with high winds and rain Saturday afternoon, leaving hundreds without power; another line of heavy thunderstorms hit York County later on.
Dozens collect water samples in effort to improve health of Casco Bay
Volunteers fan out to about 80 sites at the harbor and Fore River, hoping to find evidence of excessive nitrogen that may help pinpoint the source.
Maine firefighters, rangers bring island fire under control
The large forest fire broke out Friday afternoon on Sheep Island in Casco Bay.
Maine Voices: South Portland plan to ban pesticides a needless and harmful overreach
Regulators already ensure the chemicals are safe for human exposure and little pollution of Casco Bay has been found.
Maine Voices: South Portland on the right track with comprehensive pesticide ordinance
Maintaining a natural lawn is a cheap option that’s healthier for Casco Bay and our pollinators.
Maine Voices: When it rains, toxic runoff needn’t pour into Casco Bay
Be cautious about anything you do that leaves a residue anywhere that could end up in the iconic body of water.
Maine Voices: Protecting Casco Bay demands creative solutions to emerging challenges
As climate change’s effects become more visible, a conference Tuesday will offer a chance to discuss the state of the bay and its future.