Featured Stories: September 15, 2022
The Bay’s unprecedented “red tide” algal bloom has almost completely gone away. SF Baykeeper continues to advise caution against contacting murky, discolored waters and encourages reports of these conditions to its Pollution Hotline.
Low dissolved oxygen conditions and fish kills that followed...
BK In The News: August 30, 2022
The fish, first reported dead along the San Mateo County shoreline last Tuesday, are most likely being asphyxiated as a result of the algae, said Jon Rosenfield, a senior scientist with San Francisco Baykeeper, an environmental group that is tracking the fish kill.
BK In The News: March 20, 2024
Earlier this month, signs posted around Oakland’s Lake Merritt made some joggers stop in their tracks. “Avoid water contact,” they cautioned in bold letters. “Harmful algae may be present.” The warnings came after a mysterious red substance emerged in the water between the Lake Merritt Sailboat...
BK In The News: October 3, 2023
Over the last decade, harmful algal blooms (HABs) have emerged as one of the highest-priority water quality management issues in the San Francisco Estuary, which includes the San Francisco Bay (Bay) and Sacramento-San Joaquin River Delta (Delta). Although major HAB events in the Bay have...
Column: August 31, 2023
As the plane rose into the sky, I looked out my window eagerly anticipating the beautiful sparkling Bay views. But instead, the water was murky and reddish-brown.
It was the end of July, and Baykeeper had just received the summer's first hotline reports of a suspected algae bloom along the East Bay...
BK In The News: August 21, 2023
The largest sources of nutrient pollution and algae blooms in the San Francisco Bay — 37 different sewage treatment plants — are cleaning up their act.
Faced with two blooms called “red tides,” deadly to marine life, officials will soon recommend the first-ever restrictions on the release of the...
BK In The News: August 17, 2023
A toxic algae bloom that killed fish in San Francisco Bay for the second year in a row has dissipated, scientists say. The overall impact was much smaller than last year’s red tide, but experts caution that it’s too soon to say whether another one might flare up this summer. A bloom of Heterosigma...
BK In The News: August 15, 2023
The red tide that gave East Bay waters a light brown sheen earlier this month is likely over, declared the environmental watchdog group San Francisco Baykeeper Monday.
“I would say this bloom is done for now,” said the group’s staff scientist Ian Wren on a boat under the eastern half of the Bay...
BK In The News: August 5, 2023
At least 21 marine animals have washed ashore dead throughout the San Francisco Bay Area in the last week — potential victims of the return of the same toxic red tide that killed thousands of fish in the region last year.
Harmful algae blooms of this kind can be caused by a number of different...
BK In The News: August 4, 2023
The red tide that killed an immeasurable number of fish in San Francisco Bay last year has again emerged, covering parts of the bay in a light brown sheen.
The state agency in charge of regulating flows into the bay held a press conference in early August alerting the public about the return of the...