DeSantis urged to declare emergency over toxic red tide algae off Florida coast

Harmful algae bloom off south-west coast blamed for deaths of marine life and poses threat to beaches

Environmentalists in Florida are calling on the governor, Ron DeSantis, to declare an emergency as a worsening “red tide” algae bloom off the state’s south-west coast threatens popular tourist beaches and is being blamed for the deaths of wildlife including fish and dolphins.

Several counties have issued health alerts in response to the outbreak, which scientists say began in the Gulf of Mexico last year when Hurricanes Helene and Milton tore up nutrient-rich waters that feed the algae.

Continue reading...

Sydney’s archaic sewerage system a ‘significant’ source of microplastic pollution, CSIRO finds

Malabar wastewater plant discharges 5.4bn to 120bn of microplastics each day, report says, prompting calls for more advanced treatment processes

It is not just human waste that is being pumped into the ocean off Sydney’s popular beaches due to the city’s unusual and archaic sewerage system – government scientists have confirmed billions of microplastics are also polluting the water.

A CSIRO report, released in 2020 but not reported on until now, found the wastewater treatment plant (WWTP) at Malabar discharged an estimated 5.4bn to 120bn of microplastics into the ocean each day.

Sign up for Guardian Australia’s breaking news email

Continue reading...

‘I closed my eyes to brace for impact’: the man who escaped a whale’s mouth

Adrián Simancas encountered a humpback off Chile’s coast – but scientists say he was never at risk of being swallowed

Adrián Simancas had been paddling for two hours in the calm but icy seas of the Strait of Magellan, off the coast of Chilean Patagonia, when something massive emerged from the water and dragged him under.

“I saw dark blue and white colours before feeling a slimy texture brush against my face,” the 24-year-old told the Guardian. “I closed my eyes to brace for impact, but it was soft, like being hit by a wave.”

Continue reading...

Campaigners call for action as jellyfish threaten Scottish salmon farms

String jellyfish species that has killed millions of salmon in Norwegian sea farms reported in Scotland

A jellyfish species that has been wreaking havoc on Norway’s salmon industry has made its way to Scotland, causing significant damage and prompting calls for urgent action.

The string jellyfish has killed millions of salmon in Norwegian sea farms with officials urging an extermination of affected stocks.

Continue reading...

Treasury seeks to keep water firm fines earmarked for sewage cleanups

Exclusive: Restoration fund in England could be ‘siphoned off’ to be used for general government spending, not repairing rivers

Rachel Reeves’s Treasury is looking to keep millions of pounds levied on polluting water companies in fines that were meant to be earmarked for sewage cleanup, the Guardian has learned.

The £11m water restoration fund was announced before the election last year, with projects bidding for the cash to improve waterways and repair damage done by sewage pollution in areas where fines have been imposed.

Continue reading...

‘The worst way of dying’: scientists urge coordinated effort to stop whales getting tangled

Experts recorded 45 entanglements off Australia’s east coast in 2024 – but believe that’s ‘the tip of the iceberg’

At least 45 whales were entangled by fishing ropes and line on the east coast in 2024, and experts are calling for better management of fishing gear in Australia to prevent marine suffering.

Dr Olaf Meynecke, a marine scientist at Griffith University, said the issue of preventing whale entanglements was “largely ignored in Australia”.

Sign up for Guardian Australia’s breaking news email

Continue reading...

Grieving killer whale who carried calf’s body spotted again with dead baby

Experts say sighting of orca in Puget Sound with second deceased calf is ‘devastating’ for ailing population

An apparently grieving killer whale who swam more than 1,000 miles pushing the body of her dead newborn has lost another calf and is again carrying the body, a development researchers say is a “devastating” loss for the ailing population.

The Washington state-based Center for Whale Research said the orca, known as Tahlequah, or J35, was spotted in the Puget Sound area with her deceased calf.

Continue reading...

Cruise ships urged to ‘clean up their act’ amid concerns toxic effluent being dumped on Great Barrier Reef

Environmentalists say marine park waste regulations need updating to limit grey water and exhaust chemicals as passenger cruise numbers rise

Environmentalists and tourism operators on the Great Barrier Reef say authorities must enforce stricter pollution standards on cruise liners visiting the world heritage area amid growth in passenger cruise numbers and concern that ships are dumping toxins into the water.

The Whitsunday Conservation Council says the definition of “waste” used to prevent marine discharge on the reef – which dates back to the 1970s – does not restrict discharge from sulphur “scrubbers” that have become commonplace in the shipping industry.

Sign up for Guardian Australia’s breaking news email

Continue reading...

Largest great white shark ever caught in Queensland control program was pregnant with four pups

Female almost the length of a shipping container was found dead on a drumline in August, primary industries department has revealed

The largest great white shark ever caught in Queensland’s shark control program died while pregnant with four pups, the primary industries department has revealed.

A female white shark was found dead on a shark-catching drumline near Gladstone in August. Queensland’s Department of Primary Industries took samples for research purposes and has been collaborating with researchers interstate, a spokesperson said.

Sign up for Guardian Australia’s breaking news email

Continue reading...

Pint-sized crustacean named after New Zealand brewery to boost interest in marine life

Tiny isopod is dubbed Pentaceration forkandbrewer in push to engage community with climate-threatened life in local waters

New Zealand scientists have named a tiny snowflake-like crustacean after a Wellington brewery, in an attempt to boost the public’s interest in local marine life.

The roughly 1.5mm marine isopod was found in the silty depths off New Zealand’s southern east coast. It helps decompose organic material that drifts to the seabed.

Continue reading...

LED lights on underside of surfboards may deter great white shark attacks

An Australian-led study using seal-shaped decoys found underside lighting disrupted ability of great whites to see silhouettes against sunlight above

Using LED lighting on the underside of surfboards or kayaks could deter great white shark attacks, new research suggests.

In an Australian-led study using seal-shaped decoys, underside lighting disrupted the ability of great whites to see silhouettes against the sunlight above, reducing the rates at which the sharks followed and attacked the artificial prey. The brighter the lights, the more effective the deterrent was.

Continue reading...

Oysters doing well in Firth of Forth after reintroduction, say experts

Early signs of success seen in area where native European oysters were fished to local extinction by early 1900s

Thousands of oysters released into the Firth of Forth appear to be thriving again after a century-long absence from the Scottish estuary since they were lost to overfishing.

Marine experts from Heriot-Watt University who have helped reintroduce about 30,000 European flat oysters to the estuary said divers and underwater cameras showed they were doing well.

Continue reading...

Outrage against Canada’s Marineland theme park after fifth beluga dies

Most recent fatality marks 17th beluga to die at Niagara Falls, Ontario, aquarium since 2019

A fifth beluga has died at Canada’s Marineland, as questions mount over the future of both the controversial theme park and one of the world’s largest populations of captive whales.

The most recent fatality marks the 17th beluga to die at the Niagara Falls aquarium since 2019.

Continue reading...

Butchered remains of dolphin discovered on New Jersey beach

National Oceanic and Atmospheric Administration investigates discovery of remains of common dolphin

The butchered remains of a dolphin were found on a New Jersey beach, and federal authorities are investigating.

The Marine Mammal Stranding Center, which responds to reports of dead or distressed marine animals that come ashore in New Jersey, said the remains of a common dolphin were found on Wednesday on the beach in Allenhurst, just north of Asbury Park.

Continue reading...

They have tentacles and taste great in pasta. What are the strange barnacles washing up on Australian beaches?

Bondi beach’s newest residents may look strange to human eyes, but goose barnacles are a normal part of the natural marine environment

Goose barnacles look as strange as their name, with a long, noodle-like stalk emerging from smooth white plates. The crustacean, also known as percebes, is also extremely expensive – in Europe, where it’s enjoyed as a delicacy, a kilo might cost hundreds of dollars.

And this week, a bunch washed up at Horseshoe Bay, south of Adelaide.

Sign up for Guardian Australia’s breaking news email

Continue reading...

Mysterious gooey blobs washed up on Canada beaches baffle experts

Residents and marine scientists unable to identify pale masses, as myriad theories are blown out of the water

They are slimy on the outside, firm and spongy on the inside and surprisingly combustible. And in recent months, they have been washing up on the shores of Newfoundland.

The depths of the Atlantic have long held mysteries, but the riddle of the mysterious white “blobs” spotted on the beaches of the eastern Canadian province has baffled both residents and marine scientists.

Continue reading...

Scientists contest environment minister’s claim of ‘blitzing’ Australia’s ocean reserve expansion goal

Tanya Plibersek claims Labor is protecting 52% of its ocean territory, but experts say that is ‘misleading’

Scientists have challenged Tanya Plibersek’s claim that Australia is protecting more than half of its oceans and has “blitzed” a 30% target, arguing industrial longline fishing will still be allowed in some areas the government says it is conserving.

The environment minister told a “global nature positive summit” in Sydney on Tuesday the government had quadrupled the size of the sub-Antarctic Heard Island and McDonald Islands Marine Reserve, a world heritage area about 4,000km south-west of Perth.

Sign up for Guardian Australia’s breaking news email

Continue reading...

Europe’s exhausted oyster reefs ‘once covered area size of Northern Ireland’

Study uncovers vivid and poignant accounts of reefs as high as houses off countries including UK, France and Ireland

Only a handful of natural oyster reefs measuring at most a few square metres cling on precariously along European coasts after being wiped out by overfishing, dredging and pollution.

A study led by British scientists has discovered how extensive they once were, with reefs as high as a house covering at least 1.7m hectares (4.2m acres) from Norway to the Mediterranean, an area larger than Northern Ireland.

Continue reading...

‘Miracle’ penguin found two weeks after escaping captivity in Japan

Pen-chan defies expectations to be reunited with keeper safe and sound after swimming 30 miles in open sea

A fugitive penguin in Japan has been found safe and sound two weeks after escaping into the sea and paddling for miles in what her keeper called a miracle.

Pen-chan, a female Cape penguin born and raised in captivity, who had never swum in the open sea before or fended for herself, absconded from an event in the central Aichi region on 25 August.

Continue reading...

Japanese eels can escape predators’ stomach through their gills, finds study

Eels use tail-first technique to back up digestive tract of fish towards oesophagus before coming out of gills

It sounds like the plot of a horror movie – a predator swallows its prey only for the creature to burst out of its captor’s body. But it seems Japanese eels do just that.

Scientists in Japan have discovered that when swallowed by a dark sleeper fish, the eels can escape.

Continue reading...