fish

Alien fish boom shows difficulty of replenishing Murray-Darling

Wetlands and rivers need water – not least in the case of Australia’s biggest river system, the Murray-Darling Basin, which has been the target of an “environmental watering” plan designed to preserve its water levels and quality.

But research shows that, during the 2010-11 floods, measures taken to manage water levels and preserve local wildlife ended up helping alien species, such as the troublesome common carp.

Southern Pygmy Perch

Australia has around 300 species of freshwater fish. Many people are aware of iconic species like Australian Bass, Barramundi and Murray Cod, but there a many small fish that deserve our attention. Here is the Southern Pygmy Perch.

Research by ILWS Masters of Philosophy student Luke Pearce aims to help the survival of a tiny native fish once found throughout the southern part of the Murray Darling Basin, and Charles Sturt University is also providing a home for this battler.

Fishing for Microplastics

Since the discovery of the Pacific Garbage Patch in 1997, which is predicted to measure twice the size of Texas, five more have been found across the world’s oceans with the Atlantic gyre predicted to be even larger. This plastic takes thousands of years to degrade, remaining in the environment to be broken up into ever smaller fragments by ocean currents. The gyre stretches from the coastlines of California to the shores of Japan. Recent studies have estimated 46,000 pieces of plastic per square kilometer of the world’s oceans. The number of plastic pieces in the Pacific Ocean has tripled in the last ten years and the size of the accumulation is set to double in the next ten. Sea Chair is made entirely from plastic recovered from our oceans. Together with local fishermen, Studio Swine collects and processes the marine plastic into a stool at sea.