How artificial reefs are helping the East Australian Current deliver a conveyor belt of food to a ‘wall of mouths’ or baitfish, with benefits for recreational fishers.
The tube fishway allows fish to glide past dam walls, weirs and other river barriers, with the potential to revitalise Australia’s ailing freshwater fish stocks.
An international team of researchers has revealed the mechanisms behind fish schooling – and what they found differs from what scientists had previously thought.
Hundreds of thousands of fish have died in low-oxygen water. Here's what actually happened to the oxygen, and why we might see more deaths in the coming weeks.