Articles on Fish

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A report has found the causes of mass fish deaths in the Darling river. Dean Lewins/AAP

We wrote the report for the minister on fish deaths in the lower Darling – here’s why it could happen again

Fish deaths at the lower Darling can happen again. Here's what we can do about it.
The Giant Sea Bass at the California Academy of Sciences. Fishes'sense of smell is highly affected by high level of carbon dioxide in the ocean. Togabi/Wikimedia

Ocean fish are under threat if we don’t curb carbon dioxide emissions

Increase of carbon dioxide in the ocean affects the way fish detect predators, mates or food and could threaten not only individual fish but entire populations.
What is in these products? And if additives don’t affect your health, would you care? Shutterstock

Trust Me, I’m An Expert: Food fraud, the centuries-old problem that won’t go away

Food fraud, the centuries-old problem that won’t go away. The Conversation55.8 MB (download)
Dairy farmers used to put sheep brains and chalk in skim milk to make it look frothier and whiter. Coffee, honey and wine have also been past targets of food fraudsters. Can the law ever keep up?
A three-banded clownfish (Amphiprion ocellaris) navigates the anemones of the Andaman Coral Reef, India. Ritiks/Wikipedia

Why does Nemo the clownfish have three white stripes? The riddle solved at last

Our children all know the little clownfish Nemo, star of the Pixar film. But why does he have three stripes, rather than one or two? Developmental and evolutionary biology are revealing the answer.
When a stream enters a culvert, the flow can be concentrated so much that water flows incredibly fast. So fast, in fact, that small and juvenile fish are unable to swim against the flow and are prevented from reaching where they need to go to eat, reproduce or find safety. Shutterstock

How did the fish cross the road? Our invention helps them get to the other side of a culvert

Our new invention tackles one of the greatest impediments to fish migration in Australia: culverts, those tunnels or drains often found under roads.
Zebrafish are known for their black and gold stripes. NICHD/flickr

How the zebrafish got its stripes

Zebrafish are known for their black and gold stripes, but researchers are still figuring out how pigment cells interact to form these patterns.

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