A recent US study found tyre chemicals were polluting rivers and poisoning migratory salmon.
Fish farms feed millions of people around the world, but they also consume a lot of fish that are dried or ground up to make aquafeed. Researchers are developing more sustainable alternatives.
While humans domesticate plants and animals, these relationships are surprisingly rare in other species. Our new study found a species of fish that appears to have domesticated a kind of tiny shrimp.
The Pacific Ocean produces oxygen, helps regulates the weather, provides food and livelihoods. It's a place of fun, solace and spiritual connection. But its delicate ecology is under threat.
The oils in fish are excellent buffers against disease. Why don't we eat more fish?
Marine fish could serve as a crucial global emergency food supply in times of crisis, if marine ecosystems were in a healthy state to start with.
This year marks a decade since the Millennium Drought ended. The Murray-Darling Basin has endured a lot since, but two species are making an impressive comeback.
Paleontologists have discovered fossil remains belonging to an enormous 'toothed' bird that lived for a period of about 60 million years after dinosaurs.
We found 92 threatened species reported in industrial catch records. This is shameful and unnecessary.
New regulations will allow oilsands companies to release 1.3 trillion litres of liquid waste into the Athabasca River in 2022. A new technology could clean the wastewater before it's let go.
Hurricane Harvey destroyed the fishing infrastructure of Aransas Bay and reduced fishing by 80% over the following year. This removed humans from the trophic cascade and whole food webs changed.
After the Black Summer bushfires, heavy rains extinguished many fires but turned high quality water in our rivers to sludge. This is how we better prepare for next time.
Twenty of these freshwater fish species have a 50% or greater probability of extinction within the next 20 years.
Between 1986 and 2016, Kenya lost about 21 of its seagrasses.
Fish need to cross roads too. But the tunnels built to channel rivers under roads and railways can block their migrations.
Pollutants from industrial and domestic sources in the Lagos lagoon represent a cocktail of environmental contaminants.
I've worked in threatened fish conservation and management for more than 35 years, but this species is special to me.
When the post-bushfire rains finally arrived, the situation for many fish species went from dangerous to catastrophic. A slurry of ash and mud washed into waterways, sending oxygen levels plummeting.
As climate change warms northern rivers and changes precipitation patterns, some types of cold-loving fish are failing.
Mediterranean groupers are not alone: they are home to a wide variety of parasites.