POBBLEBONK - PANEL 7

WATER QUALITY

In the last few decades a method for measuring fresh water quality and habitat has been developed overseas and in Australia using macroinvertebrates or the small creatures that live in rivers, streams and ponds like mayfly and dragonfly nymphs, beetles, snails, worms, shrimp etc.

This method, known as bioassessment, is useful because macroinvertebrates are widespread and consistent in behaviour in their response to a variety of factors. Furthermore it is a method that can be understood by members of the community who can also participate in the assessment.

One basic principle for example is that water bodies with a high level of diversity are generally in good health while in polluted habitats sensitive species are eliminated and less sensitive species show an increase in numbers. However this system is not so well developed for estuarine and marine systems.

 

Click on the image to find out more about each of the animals in this panel.

 

 

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