Category Archives: Fish

Salmon swim freely in Klamath River for first time in more than 100 years

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News comes after Iron Gate dam was removed to let river near California-Oregon border return to natural flow

For the first time in more than a century, salmon are swimming freely along the Klamath River and its tributaries, just days after the largest dam removal project in US history was completed.

Researchers determined that Chinook salmon began migrating on 3 October into previously inaccessible habitat above the site of the former Iron Gate dam, one of four towering dams near the California-Oregon border that were demolished as part of a national movement to let rivers return to their natural flow and to restore ecosystems for fish and other wildlife.

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Bottom-breathing turtle among Queensland endangered species under threat from invasive fish

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Record floods propel aggressive Mozambique tilapia throughout Mary River, compromising efforts to save ancient fish and endangered turtles

Record floods have propelled an aggressive invasive fish species across a south-east Queensland river catchment, compromising efforts to save endangered and ancient fishes and turtles.

The Moonaboola (Mary) river catchment is home to several threatened species, including the Mary River turtle, the white-throated snapping turtle (known for breathing through its bottom), the Mary River cod and the Australian lungfish, which has survived for 150m years and is considered a living fossil.

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New ghost shark species with unusually long nose discovered in deep seas off New Zealand

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The narrow-nosed spookfish is also found in Australian waters and is distinctive for its elongated snout and whip-like tail

A new species of ghost shark, with an unusually long nose and a whip-like tail, has been discovered in the inky depths of New Zealand waters.

Scientists at New Zealand’s National Institute for Water and Atmospherics (Niwa) initially believed the creature was part of an existing species found around the world, but further investigation revealed it was new, genetically distinct, species.

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

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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.

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‘Strange and mysterious’: rarely seen, 12ft-long oarfish found in waters off San Diego

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Group finds elusive deep sea fish that has washed up in California only 20 times since 1901

A group of people kayaking and snorkeling off the San Diego coast made an unusual discovery when they came across an oarfish, a rarely seen deep sea fish that has washed up in California only 20 times in over a century.

The 12ft-long silvery fish was found floating dead in the water last weekend. The group, along with marine experts, helped bring the creature ashore for study.

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Band’s gig postponed amid deportation call – as it happened

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Weather update for Victoria and New South Wales: rain, floods, gusts and snow

Angus Hines, a senior meteorologist from the Bureau of Meteorology, spoke with ABC News Breakfast earlier to provide an update on the rainfall across Victoria.

That has given us minor to moderate flood warnings including in parts of the Yarra River this morning, as all of the rain from last night and yesterday evening drains out through the river network and out towards the ocean.

Take actions to protect your life and property against potential hazards caused by flooding.

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Canada to ban open-net pen salmon farming in British Columbia

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Environmentalists hail decision to end practice in five years but aquaculture industry warns of 6,000 jobs at risk

Canada will ban open-net pen salmon farming in British Columbia coastal waters in five years, the government has announced, a decision that has been welcomed by environmental groups but opposed by the aquaculture industry.

The Liberal government made the decision in 2019 to transition to closed containment technologies to protect declining wild Pacific salmon populations.

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Threatened species and chips? Other fish frequently sold as flake, Australian study finds

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Scalloped hammerhead and greeneye spurdog among at-risk shark discovered in genetic testing of fillets

One in 10 fillets of shark meat bought by Australians at fish and chip shops and markets – often labelled as flake – is from a threatened species, according to a study that has uncovered widespread mislabelling of shark sold to the public.

Nine of 91 fillets were found to be either scalloped hammerhead, greeneye spurdog or school shark – all considered threatened in Australia – after scientists at Macquarie University used DNA analysis to check what they were sold.

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Scottish salmon industry challenged over move to drop ‘farmed’ from labels

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Fish welfare campaigners say Defra decision facilitates greenwashing and will mislead consumers

Animal welfare campaigners are challenging the decision to allow producers of Scottish salmon to drop the word “farmed” from labelling.

An application by the industry body claimed changing the protected name wording on the front of packaging from “Scottish farmed salmon” to “Scottish salmon” made sense because wild salmon was no longer sold in supermarkets, which consumers were aware of.

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Greece becomes first European country to ban bottom trawling in marine parks

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The law will come into force in national parks within two years and in all of the country’s marine protected areas by 2030

Greece has become the first country in Europe to announce a ban on bottom trawling in all of its national marine parks and protected areas.

The country said will spend €780m (£666m) to protect its “diverse and unique marine ecosystems”.

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Record number of river barriers removed across Europe in 2023

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Removal of nearly 500 barriers last year will help restore disturbed waterways to their natural state, says Dam Removal Europe

Europe removed a record number of dams and other barriers from its rivers in 2023, a report has found, helping to restore its disturbed waterways to their natural states.

Nearly 500 barriers were taken out of European rivers last year, according to figures compiled by Dam Removal Europe, an increase of 50% from the year before.

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Swapping red meat for herring, sardines and anchovies could save 750,000 lives, study suggests

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Switch could also cut prevalence of disability linked to diet-related disease and help tackle the climate crisis, researchers found

Swapping red meat for forage fish such as herring, sardines and anchovies could save 750,000 lives a year and help tackle the climate crisis, a study suggests.

Mounting evidence links red meat consumption with a higher risk of disease in humans as well as significant harm to the environment. In contrast, forage fish are highly nutritious, environmentally friendly and the most abundant fish species in the world’s oceans.

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Spinning, whirling fish in south Florida prompt emergency response

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Smalltooth sawfish are behaving oddly, eliciting a first-ever plan to rescue and rehabilitate species from wild

The National Oceanic and Atmospheric Administration (NOAA) is launching what the agency described as an emergency response effort in south Florida after emerging reports of smalltooth sawfish spinning, whirling and displaying other abnormal behaviors.

In a statement released last Wednesday, NOAA said that in addition to the abnormal behaviors, there have been reports of fish deaths in the lower Florida Keys, including more than 28 smalltooth sawfish as of 24 March.

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‘Poisoned by chemicals’: citizen scientists prove River Avon is polluted

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Charity blames the decline of invertebrates on farming, sewage and run-off from roads and homes, months after the Environment Agency told them the water in Wiltshire river was clean


A citizen science programme has revealed the decline of one of the country’s most significant chalk streams after claims by Environment Agency officials that it had not deteriorated. The SmartRivers programme run by the charity WildFish, which surveys freshwater invertebrates, reported “strong declines in relation to chemical pressure” on the River Avon in Wiltshire. It said its data indicated a decline in the condition of the river over the last five years.

The charity compiled a report on its findings after the conservation groups say they were told at a meeting by the Environment Agency in August that “the Avon has not deteriorated in water quality in the last five years”. David Holroyd, head of water quality for Wiltshire Fishery Association, said the numbers of invertebrates collected in spring and autumn samples from 2019 and 2023 at 11 sites on the upper Avon had shown a decline.

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Sydney’s 90m-year-old climbing galaxias fish may have been wiped out by school building works

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The species can climb waterfalls and reaches back to Gondwanaland – but there are fears polluted runoff has proven fatal

A “miracle fish” may have been snuffed out in its Sydney habitat by bungled construction work at a nearby government high school, local environmentalists fear.

The climbing galaxias (Galaxias brevipinnis) belongs to a species line reaching back to Gondwanaland. It was only identified in the Manly Dam region in Sydney’s north – the fish’s most northerly known location in Australia – in 1998.

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‘Nemo’ clownfish drive away species with same stripes, study suggests

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Researchers say they have found how anemonefish identify unwelcome guests of their own kind, by counting white markings

Unlike the star of Disney’s Finding Nemo, real-life common clownfish are not keen on sharing their home with members of their own species.

Researchers say they have discovered how they kick unwelcome guests out, by counting the stranger’s vertical white markings.

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Baby shark! Researchers may have captured first image of newborn great white

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California scientist and film-maker spot apparent pup – never before seen in the wild – in drone pictures

Researchers in California may have gotten the first ever look at a newborn great white shark, which they captured in drone images taken last summer.

The newborn animal has never before been spotted in the wild. But in July, the wildlife film-maker Carlos Gauna and Phillip Sternes, a biology doctoral student at the University of California, Riverside, glimpsed something unexpected in the waters near Santa Barbara on California’s central coast.

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‘Unacceptable greenwashing’: Scottish farmed salmon should not be labelled organic, say charities

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Open letter calls for Soil Association certification to be removed from industry, amid concerns of negative environmental impact

The British body that certifies food in the UK as organic has been accused of misleading consumers over its labelling of Scottish farmed salmon.

Thirty charities, conservation and community organisations, including WildFish, the Pesticide Action Network and Blue Marine Foundation, say the negative environmental impacts of the industry in Scotland “run completely counter” to the principles of the Soil Association’s promotion of healthy, humane and sustainable food.

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Man may face prosecution for allegedly spearfishing three blue groper on NSW south coast

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The fish deaths on Plantation Point near Jervis Bay come less than a week after another man was caught spearing a blue groper at Cronulla

A man is under investigation by New South Wales state officials after he was allegedly caught illegally spearfishing three blue groper in an incident that has prompted calls for tougher penalties.

The man had been interviewed and was being assessed for prosecution by senior fisheries compliance officials after he allegedly killed two female groper and one male groper on Plantation Point near Jervis Bay on the south coast on 5 January.

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Alleged spearing of beloved blue groper in Sydney sparks outrage

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Department of primary industries investigating after protected fish species allegedly killed in Cronulla

The alleged spearing and killing of a protected fish species in Sydney over the weekend is being investigated.

According to local reports, onlookers were left outraged after an endangered blue groper (Achoerodus viridis) was allegedly speared and killed at Oak Park in Cronulla on Saturday.

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