Articles on Fish

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A tiny male Red-finned Blue-eye, half the size of your little finger. Adam Kereszy

Australian endangered species: Red-finned Blue-eye

The Red-finned Blue-eye (Scaturiginichthys vermeilipinnis) grows to a maximum of three centimetres long. As males reach adulthood they develop the vivid colouration suggested by their common name. In contrast…

Invasive fish prove to be resourceful

Invasive species of fish, collectively known as Asian carp, may prove more of a concern to American river systems than previously…
The Murray cod is popular amongst fishers, and also critically endangered - at least according to the IUCN. Flickr/guochai

Australian endangered species: Murray Cod

The Murray cod (Maccullochella peelii) is the largest native Australian freshwater fish species, and is probably the most iconic. The species’ credentials are impressive: it can live for more than 50 years…
How and why have the colour patterns of coral reef fish changed over time? David Cook

Dazzling or deceptive? The markings of coral reef fish

Have you ever wondered why coral reef fishes are so brilliantly coloured and bizarrely patterned? A quick flick through any coral reef fish guide will leave you bewildered and awed. To answer this question…
Should you eat this? The new snapshot of Australian fish stocks is unlikely to help you decide. avlxyz/flickr

Do assessments of fish stock sustainability work for consumers?

The report, Status of Key Australian Fish Stocks 2012 is the first official report combining assessments of major Commonwealth and state-managed fisheries into one document. The report paints a rosy picture…
In order to drag themselves onto land, fish-like creatures needed limbs. Thierrry

They came from the sea: the gene behind limb evolution

In the late Devonian period, roughly 365 million years ago, fish-like creatures started venturing from shallow waters onto land. Among the various adaptations associated with the switch to land life was…
Is layer after layer of regulation the solution to the problems the freshwater life of the Murray-Darling Basin face? Kristian Golding

Micro-managing the Murray-Darling Basin: what’s in it for fish?

This is part two of a series investigating the effect Murray-Darling water policy has on acquatic life. It’s told from the perspective of the new water minister, a Murray Cod called Mac Peelii, who last…
The mechanisms that make some fish hard to see could be used in next-generation electronics. mattieb

‘Invisible’ fish could light the way to better optical devices

Imagine setting up mirrors in a circle around you, the shiny sides all facing outwards to reflect your surroundings. To the casual observer you would appear to be “invisible”, blending into the environment…
Fisheries around the world are depleted, but they can be saved. Isaac Pearlman

It is still possible to make fisheries sustainable

Many fisheries around the world are in bad shape and getting worse. Solving this problem will require innovative monitoring and management tools, but we can provide tremendous benefits if we act now to…
If you’re a female guppy it pays to take many mates … sort of. André "Drekas" Correia/Flickr

More sex partners means more grandkids … if you’re a guppy

Here’s some good news: having more sexual partners makes females more fertile. A recent study on Trinidadian guppies has shown that females who mate with multiple males produce more grand-offspring than…
Are any of these fish sustainable? A seafood guide might help you figure it out, but it might not… Diarmuid Fisherman/Flickr

Conflicting sustainable seafood guides confuse consumers

Whether at the supermarket or the local fisho, most people find it difficult to know what seafood is sustainable. To help consumers make more informed choices, conservation organisations have been busy…

Warmer oceans could lead to smaller fish

Change in climate, resulting in warmer and less oxygenated oceans, could mean a reduction in the size of fish. Over 600 species…
Does this guy know something Tony Burke doesn’t? Phil Nicholls

Looking at the Murray Darling through a native fish-eye lens

Let’s imagine for a minute that a Murray cod – let’s call him Mac Peelii - replaced Tony Burke as water minister, responsible for the Murray-Darling Basin. Apart from the obvious issues associated with…
We are really just beginning to learn what’s gone wrong for native species like the Murray Cod. Biodiversity Heritage Library

Native fish - and recreational fishers - need native fish funding

The Murray-Darling Basin Authority’s Native Fish Strategy (NFS) is at serious risk of winding up, after NSW announced it is cutting its financial contributions. This is a serious blow to the conservation…

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