Ivor Stuart/The Conversation
Carp can make riverbeds look like golf balls – denuded and dimpled, devoid of any habitat. Releasing carp herpes virus is a controversial proposition, so let’s weigh up the risks and benefits.
Why an exploding aquarium in Berlin should destroy prevailing myths about the inner lives of fish.
The rising use of antidepressants has led to a parallel spike in their presence in our ecosystems.
Neuroactive compounds in antidepressants enter our wastewater and affect how fish function. Identifying the potential damage to fish is paramount for protecting our aquatic ecosystems.
Invasive rats can fundamentally alter the functioning of surrounding marine ecosystems.
Rats are disrupting the flow of nutrients towards the sea on many tropical islands – this has consequences for fish behaviour and the wider ecosystem.
Swimming and surfing in the ocean is fun and invigorating. But sharing the water with animals comes with risks to us and them.
When fish like this netted cod are exposed to mercury, it accumulates in certain organs, including the lenses of their eyes.
A new study shows that a time stamp can be put on mercury that accumulates in fish eyes, offering a window into their lifetime exposure.
Researchers discovered five new species of black corals, including this
Hexapathes bikofskii growing out of a nautilus shell more than 2,500 feet (760 meters) below the surface.
Black corals provide critical habitat for many creatures that live in the dark, often barren, deep sea, and researchers are learning more about these rare corals with every dive.
Christopher D H Thompson
Thousands of hours of ocean footage reveal how fish rub their heads on sharks to scrape off parasites and scratch itches.
The white-necked jacobin (Florisuga mellivora) is a medium-size hummingbird
Narwhals, hummingbirds and the Asian sheepshead wrasse have opened scientists’ eyes to the complexity of nature.
The Osun River has become turbid and unsafe for consumption - threatening its cultural and biodiversity significance. Photo by: Stefan Heunis/AFP via Getty Images.
The ability of the Osun River to support biodiversity is being threatened by pollution and can only be rescued if the contamination ends.
A large group of yellowfin tuna swimming off the coast of Italy. Like all fish, they sleep, but it’s not like human sleep.
Giordano Cipriani/The Image Bank via Getty Images
Just about every creature on Earth needs to grab some Zs from time to time. Imagine trying to doze while dodging great whites and killer whales.
The photographs show how climate change is disrupting our marine ecosystems – sometimes in ways previously unknown to marine scientists.
UV absorbents and industrial antioxidants can reach aquatic environments through the degradation of plastics, or via wastewater treatment plant effluents.
(Environment and Climate Change Canada)
UV absorbents and industrial antioxidants are used in many household goods to protect them from UV radiation. They can have an adverse impact on ecosystems.
Mediterranean coral reefs support diverse ecosystems, their loss would be catastrophic.
While official data is yet to be released, this year’s Mediterranean marine heatwave will likely have devastating ecological consequences.
An Indonesian coastal community, dependent on fishing for income.
The true cost of marine conservation often falls on vulnerable coastal communities. Can a ‘beneficiary pays’ approach protect both endangered species and the communities dependent on them?
The round goby is an invasive fish that has become established in the St. Lawrence River over the past two decades, following its introduction into the Great Lakes.
Wetlands can help limit the spread of the voracious round goby, an invasive species that has infiltrated the Great Lakes and has become widespread in the St. Lawrence River.
Federal Labor has pledged to deliver the Murray Darling Basin Plan. But a new report casts serious doubt on that promise.
The twaite shad by Edward Robinson, 1802.
Old Images/Alamy Stock Photo
Migratory fish populations have collapsed worldwide in the last 50 years.
A great hammerhead shark’s two eyes can be 3 feet apart on opposite sides of its skull.
Ken Kiefer 2/Image Source via Getty Images
The first hammerhead shark was likely the result of a genetic deformity. A biologist explains how shark DNA reveals hammerheads’ history.
An artist’s vision of
Qikiqtania enjoying its fully aquatic, free-swimming lifestyle.
The newly discovered species – Qikiqtania – highlights evolution’s twisty, tangled path.