JavaScript is off. Please enable to view full site.

Toxic algae bloom kills off fish around San Francisco Bay

Toxic algae bloom kills off fish around San Francisco Bay

Thursday, September 01, 2022, 10:49 GMT+7
Toxic algae bloom kills off fish around San Francisco Bay
A dead California bat ray sits in the mud of Lake Merritt in Oakland, California, U.S., August 30, 2022. Photo: Reuters

Rotting carcasses of striped bass, bat rays and other fish have been washing up on the shores of the San Francisco Bay Area in recent days, after a toxic algae bloom spread across the area.

The toxic bloom began in July and has stretched as far north as San Pablo Bay, roughly 20 miles (32 km) north of San Francisco, to as far south as the coastlines of San Mateo County, said environmental advocacy organization San Francisco Baykeeper.

It identified the culprit behind the murky brown waters as a species of algae called Heterosigma akashiwo.

"This bloom’s been going on for over a month and it’s covering San Francisco Bay, so the scope and the duration of this bloom is unprecedented," Jon Rosenfield, a Baykeeper senior scientist, told Reuters.

He blamed the bloom on treated wastewater containing nitrogen and phosphorous dumped into the bay by about 40 wastewater treatment centers.

A dead California bat ray sits in the mud of Lake Merritt in Oakland, California, U.S., August 30, 2022. Photo: Reuters

A dead California bat ray sits in the mud of Lake Merritt in Oakland, California, U.S., August 30, 2022. Photo: Reuters

A spokesperson for the public works department in the city of Oakland, across the bay from San Francisco, said it is doing what it can to deal with the fish deaths and algal bloom, but could not speculate on the root cause of the phenomenon.

Workers on Wednesday donned hazmat suits with N95 masks, gloves and boots and climbed into the mud of Lake Merritt's shores, braving the pungent stench to collect rotting carcasses of fish and other wildlife floating in the water or resting on the mud.

"It's kind of my second home, and I’ve never seen anything like this," said Oakland resident Sara Moss, 27, who frequently comes to Lake Merritt. "It’s insane how many dead fish there are, all sizes too."

Rotting carcasses of striped bass, bat rays and other fish have been washing up on the shores of the San Francisco Bay Area in recent days, after a toxic algae bloom spread across the area.

The toxic bloom began in July and has stretched as far north as San Pablo Bay, roughly 20 miles (32 km) north of San Francisco, to as far south as the coastlines of San Mateo County, said environmental advocacy organization San Francisco Baykeeper.

It identified the culprit behind the murky brown waters as a species of algae called Heterosigma akashiwo.

"This bloom’s been going on for over a month and it’s covering San Francisco Bay, so the scope and the duration of this bloom is unprecedented," Jon Rosenfield, a Baykeeper senior scientist, told Reuters.

He blamed the bloom on treated wastewater containing nitrogen and phosphorous dumped into the bay by about 40 wastewater treatment centers.

A dead California bat ray sits in the mud of Lake Merritt in Oakland, California, U.S., August 30, 2022. Photo: Reuters

A dead California bat ray sits in the mud of Lake Merritt in Oakland, California, U.S., August 30, 2022. Photo: Reuters

A spokesperson for the public works department in the city of Oakland, across the bay from San Francisco, said it is doing what it can to deal with the fish deaths and algal bloom, but could not speculate on the root cause of the phenomenon.

Workers on Wednesday donned hazmat suits with N95 masks, gloves and boots and climbed into the mud of Lake Merritt's shores, braving the pungent stench to collect rotting carcasses of fish and other wildlife floating in the water or resting on the mud.

"It's kind of my second home, and I’ve never seen anything like this," said Oakland resident Sara Moss, 27, who frequently comes to Lake Merritt. "It’s insane how many dead fish there are, all sizes too."

Reuters

More

Read more

ChatGPT sets record for fastest-growing user base: analyst note

ChatGPT, the popular chatbot from OpenAI, is estimated to have reached 100 million monthly active users in January, just two months after launch, making it the fastest-growing consumer application in history, according to a UBS study on Wednesday

14 hours ago

Missing radioactive capsule found in Western Australia

Australian authorities on Wednesday found a radioactive capsule that was lost in the vast Outback after nearly a week-long search along a 1,400 km (870-mile) stretch of highway, an emergency services official said

1 day ago
;

Photos

VIDEOS

‘Taste of Australia’ gala dinner held in Ho Chi Minh City after 2-year hiatus

Taste of Australia Gala Reception has returned to the Park Hyatt Hotel in Ho Chi Minh City's District 1 after a two-year hiatus due to the COVID-19 pandemic

Vietnamese woman gives unconditional love to hundreds of adopted children

Despite her own immense hardship, she has taken in and cared for hundreds of orphans over the past three decades.

Vietnam’s Mekong Delta celebrates spring with ‘hat boi’ performances

The art form is so popular that it attracts people from all ages in the Mekong Delta

Vietnamese youngster travels back in time with clay miniatures

Each work is a scene caught by Dung and kept in his memories through his journeys across Vietnam

Latest news