Australian Academy of Science,Moritz, C.Blackall, L.Davis, J.Flannery, T.Godden, L.Head, L.Jackson, S.Kingsford, R.Wheeler, S.A.Williams, J.2020-11-302020-11-302019978 0 85847 672 1http://hdl.handle.net/2440/129166On 15 December 2018 tens of thousands of dead fish were reported along a 30 km stretch of the Darling River near the town of Menindee in New South Wales. High numbers of dead fish were seen in the vicinity of the Old Menindee Weir and Menindee Pump Station. A second, larger fish kill event involving hundreds of thousands of fish was reported on 6 January 2019 on the same stretch of river. A third event followed on 28 January, killing millions of fish. Members of the panel witnessed the beginnings of a fourth event on 4 February 2019. Many different sectors of Australian society, and of the Menindee region itself, are distressed knowing that fish have been dying en masse, and are concerned about the implications for the health of the river. In addition, these fish are of high cultural significance to Indigenous communities in the region, including those holding Native Title rights. In response to the first two kills, the Academy was requested by the Leader of the Opposition, the Hon. Bill Shorten MP to provide advice on the immediate causes, as well as exacerbating circumstances from water diversions, agricultural runoff or climate change, and to provide recommendations.en© Australian Academy of Science 2019. This work is copyright. The Copyright Act 1968 permits fair dealing for the purposes of research, news reporting, criticism or review. Selected passages, tables or diagrams may be reproduced for such purposes, provided acknowledgement of the source is included. Major extracts may not be reproduced by any process without written permission of the publisher.Investigation of the causes of mass fish kills in the Menindee Region NSW over the summer of 2018–2019Report1000030742514942Wheeler, S.A. [0000-0002-6073-3172]