Joachim Bretzel is a PhD student from Germany. He is studying the effectiveness of fish screens in the Murray-Darling Basin. They are a kind of three-dimensional sieves that prevent fish and other aquatic animals, or even plants, from ending up in the pumps and the sterile irrigation canals along the rivers. They cannot survive there. This is a problem all over the world with the increasing extinction of species and the simultaneously increasing hunger for water for agriculture and industry. That is why his work at Charles Sturt University under Prof. Lee Baumgartner, in cooperation with the NSW Department of Primary Industries, is of worldwide importance.
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