The Finniss River, east of Yundi is quite diverse with almost
170 aquatic invertebrates collected from this site between 1994
and 2004. However, most of these invertebrates are commonly found
in South Australian inland waters. Many aquatic plants grow in
the river and the site has both deep and shallow sections as well
as flowing and still areas. This variation in habitat type provides
refuge for a diverse array of macroinvertebrates.
The have been 26 species of beetles collected from this site
in the past ten years, one of which is the predacious diving beetle,
Sternopriscus, which can be found in the slow flowing sections
of the river. As the name suggests they are predators and feed
on other smaller insects. They are able to dive deep under water
to retrieve their meal.
