Fish
Fish
Articles tagged with "Fish"
The Columbia River Is Polluted. Are Fish Farms Making It Worse?
Environmental groups are suing one of the largest seafood companies in the country over alleged aquaculture pollution to the Columbia River.
Warming waters are supercharging an invasive salmon predator in Alaska
Rising temperatures in a Southcentral Alaska river are driving a noticeable change in the behavior of invasive northern pike. As the water warms, these predators are eating more, raising concerns about the future of native fish such as salmon.
Less Salmon, More Oysters: Aquaculture Could Reduce its Climate Impact by Embracing Bivalves and Seaweed
Aquaculture is often framed as a vital solution to food security by expanding the supply of seafood for a growing population. But new research from the University of British Columbia suggests the industry may be heading in the wrong direction.
Cocaine pollution in rivers and lakes may disrupt behaviour of salmon, study finds
Traces of cocaine that pollute rivers and lakes may accumulate in the brains of salmon and disrupt their behaviour, according to researchers who warn of unknown consequences for fish populations.
Freshwater fish populations plunge 81% as river migrations collapse
A sweeping global report finds that migratory freshwater fish are in steep decline, with populations down roughly 81% since 1970. These species depend on long, connected rivers, but dams and human pressures are cutting off their routes.
Decline in migratory fish populations prompts fight for protection
The UN assessment of the state of migratory freshwater fish revealed an 81% decline in the last 50 years.
Epic river migrations of fish rapidly collapsing, UN report finds
Vast journeys, among world’s great wonders, found to be under threat as freshwater fish populations crash by 81%.
'We’re constantly surprised': The strange deep-sea creatures that eat whales
From bone-eating snot-flowers to snowboarding scale worms, when a whale dies it becomes a colossal island of nutrients – attracting weird and wonderful creatures to feast.
This fish has cloned itself for 100,000 years. Scientists just figured out how.
Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would otherwise plague a self-cloning species. All Amazon mollies ( Poecilia formosa ) are female and reproduce exclusively asexually, giving live birth to clones of themselves.
The Amazon molly — a sex-skipping fish — hacks evolution
The Amazon molly is an evolutionary enigma: an all-female fish that reproduces by cloning itself. Because it doesn’t mix its DNA with a mate’s, Darwinian logic holds that harmful mutations should pile up over time, eventually driving the species extinct.
Waitrose suspends sale of mackerel because of overfishing
Waitrose has become the first UK supermarket to suspend the sale of mackerel because of overfishing and will start pointing customers toward herring and other species.
Chronic ocean heating fuels ‘staggering’ loss of marine life, study finds
Chronic ocean heating is fuelling a “staggering and deeply concerning” loss of marine life, a study has found , with fish levels falling by 7.2% from as little as 0.1C of warming per decade.
If We Let Coral Reef Fish Populations Bounce Back From Overfishing, They Could Feed 1.4 Million More People
Restoring fish populations in coral reefs would boost coastal food supply, feeding up to 1.4 million more people, particularly in developing countries, according to new research. The greatest benefits would be seen in areas that are struggling with malnutrition.
Even remote Pacific fish are full of microplastics
A new scientific analysis finds that plastic pollution has reached even the most isolated Pacific coastal waters. According to the research, about one-third of fish living near Pacific Island Countries and Territories contain microplastics.
This fish may play a hole in its head like a drum
For the rockhead poacher, the noises are all in its head. The fish is a pint-size, unassuming inhabitant of nearshore shallows, but it has a conspicuous divot in the top of its skull that appears to work like a drum.
Revealing the hidden kingdom of seahorses
On a Bahamian island, in a landlocked lagoon, the planet’s densest collection of seahorses is offering scientists new insights into the secret lives of one of the world’s most mysterious fish.
Do goldfish really only have a 3 second memory?
The prevalent myth that goldfish only have a three-second memory does goldfish a great disservice, says Ellen Husain . In fact, goldfish can retain memories for at least three months, can be trained, and can also tell the time.
Some Antarctic fish arrange their nests into odd shapes
Scientists found nests organized into curves, clusters and ovals on the Antarctic seabed. Such groupings may protect the fish eggs from predators.
Young Atlantic salmon seen in three English rivers for first time in a decade
Young Atlantic salmon have been seen in three rivers in north-west England for the first time since 2015, marking a “significant environmental turnaround”.
Hundreds of marine animals from Miami Seaquarium find new home at Children's Aquarium Dallas
Children's Aquarium Dallas said that several nurse sharks, a large green moray eel, many lesser-known fish, crustaceans, and other reef species now call Texas home.
How Indigenous nations from the Klamath to the Okanagan brought the salmon home
Welcoming Home the Salmon: The Klamath River begins in southern Oregon, winds through Northern California and empties into the Pacific, a watershed the Yurok people have lived along since time immemorial.
How male seahorses tap into their mothering side
If there were to be a “best dad” award in the animal kingdom, seahorses would be a shoe-in. That’s because males, not females, of these peculiar fish carry their young to term.
Salmon farmer accused of blocking UK investigations into alleged animal rights breaches
Faroese firm Bakkafrost wants to ban campaigner Don Staniford from going within 15 metres of its fish farms
This ‘ghost shark’ has teeth on its forehead
Spotted ratfish, or “ghost sharks,” have forehead teeth that help them grasp onto mates. It’s the first time teeth have been found outside of a mouth.
Officials discover 'one of the rarest fish in America' thriving in secret creek for first time in a decade: 'It has the will to survive'
"This is a nearly extinct species, but it's making a comeback."
The Columbia River Is Polluted. Are Fish Farms Making It Worse?
Environmental groups are suing one of the largest seafood companies in the country over alleged aquaculture pollution to the Columbia River.
Warming waters are supercharging an invasive salmon predator in Alaska
Rising temperatures in a Southcentral Alaska river are driving a noticeable change in the behavior of invasive northern pike. As the water warms, these predators are eating more, raising concerns about the future of native fish such as salmon.
Less Salmon, More Oysters: Aquaculture Could Reduce its Climate Impact by Embracing Bivalves and Seaweed
Aquaculture is often framed as a vital solution to food security by expanding the supply of seafood for a growing population. But new research from the University of British Columbia suggests the industry may be heading in the wrong direction.
Cocaine pollution in rivers and lakes may disrupt behaviour of salmon, study finds
Traces of cocaine that pollute rivers and lakes may accumulate in the brains of salmon and disrupt their behaviour, according to researchers who warn of unknown consequences for fish populations.
Freshwater fish populations plunge 81% as river migrations collapse
A sweeping global report finds that migratory freshwater fish are in steep decline, with populations down roughly 81% since 1970. These species depend on long, connected rivers, but dams and human pressures are cutting off their routes.
Decline in migratory fish populations prompts fight for protection
The UN assessment of the state of migratory freshwater fish revealed an 81% decline in the last 50 years.
Epic river migrations of fish rapidly collapsing, UN report finds
Vast journeys, among world’s great wonders, found to be under threat as freshwater fish populations crash by 81%.
'We’re constantly surprised': The strange deep-sea creatures that eat whales
From bone-eating snot-flowers to snowboarding scale worms, when a whale dies it becomes a colossal island of nutrients – attracting weird and wonderful creatures to feast.
This fish has cloned itself for 100,000 years. Scientists just figured out how.
Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would otherwise plague a self-cloning species. All Amazon mollies ( Poecilia formosa ) are female and reproduce exclusively asexually, giving live birth to clones of themselves.
The Amazon molly — a sex-skipping fish — hacks evolution
The Amazon molly is an evolutionary enigma: an all-female fish that reproduces by cloning itself. Because it doesn’t mix its DNA with a mate’s, Darwinian logic holds that harmful mutations should pile up over time, eventually driving the species extinct.
Waitrose suspends sale of mackerel because of overfishing
Waitrose has become the first UK supermarket to suspend the sale of mackerel because of overfishing and will start pointing customers toward herring and other species.
Chronic ocean heating fuels ‘staggering’ loss of marine life, study finds
Chronic ocean heating is fuelling a “staggering and deeply concerning” loss of marine life, a study has found , with fish levels falling by 7.2% from as little as 0.1C of warming per decade.
If We Let Coral Reef Fish Populations Bounce Back From Overfishing, They Could Feed 1.4 Million More People
Restoring fish populations in coral reefs would boost coastal food supply, feeding up to 1.4 million more people, particularly in developing countries, according to new research. The greatest benefits would be seen in areas that are struggling with malnutrition.
Even remote Pacific fish are full of microplastics
A new scientific analysis finds that plastic pollution has reached even the most isolated Pacific coastal waters. According to the research, about one-third of fish living near Pacific Island Countries and Territories contain microplastics.
This fish may play a hole in its head like a drum
For the rockhead poacher, the noises are all in its head. The fish is a pint-size, unassuming inhabitant of nearshore shallows, but it has a conspicuous divot in the top of its skull that appears to work like a drum.
Revealing the hidden kingdom of seahorses
On a Bahamian island, in a landlocked lagoon, the planet’s densest collection of seahorses is offering scientists new insights into the secret lives of one of the world’s most mysterious fish.
Do goldfish really only have a 3 second memory?
The prevalent myth that goldfish only have a three-second memory does goldfish a great disservice, says Ellen Husain . In fact, goldfish can retain memories for at least three months, can be trained, and can also tell the time.
Some Antarctic fish arrange their nests into odd shapes
Scientists found nests organized into curves, clusters and ovals on the Antarctic seabed. Such groupings may protect the fish eggs from predators.
Young Atlantic salmon seen in three English rivers for first time in a decade
Young Atlantic salmon have been seen in three rivers in north-west England for the first time since 2015, marking a “significant environmental turnaround”.
Hundreds of marine animals from Miami Seaquarium find new home at Children's Aquarium Dallas
Children's Aquarium Dallas said that several nurse sharks, a large green moray eel, many lesser-known fish, crustaceans, and other reef species now call Texas home.
How Indigenous nations from the Klamath to the Okanagan brought the salmon home
Welcoming Home the Salmon: The Klamath River begins in southern Oregon, winds through Northern California and empties into the Pacific, a watershed the Yurok people have lived along since time immemorial.
How male seahorses tap into their mothering side
If there were to be a “best dad” award in the animal kingdom, seahorses would be a shoe-in. That’s because males, not females, of these peculiar fish carry their young to term.
Salmon farmer accused of blocking UK investigations into alleged animal rights breaches
Faroese firm Bakkafrost wants to ban campaigner Don Staniford from going within 15 metres of its fish farms
This ‘ghost shark’ has teeth on its forehead
Spotted ratfish, or “ghost sharks,” have forehead teeth that help them grasp onto mates. It’s the first time teeth have been found outside of a mouth.
Officials discover 'one of the rarest fish in America' thriving in secret creek for first time in a decade: 'It has the will to survive'
"This is a nearly extinct species, but it's making a comeback."
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