Black Bream image courtesy of Nico Des Sables, Wikimedia Commons (CC-BY-SA) see details...
Atlas of Living Australia
Image courtesy of Graham Edgar / Reef Life Survey at Fishes of Australia License: CC BY
Water quality
Blackwater is oxygen-depleted water caused by the decay of organic matter. The decay process darkens the water and the oxygen in the water is consumed, sometimes at a rate faster than it can be replenished. This can result in a low level of dissolved oxygen that may cause stress to fish, crayfish and other aquatic animals. When the dissolved oxygen reaches a very low level it can result in fish deaths (Murray Darling Basin Authority, n.d.). Blackwater occurs naturally during flooding events in the Murray Darling Basin, and, despite it's harmful effect in the short term, can contribute to overall improvements in its ecosystems. This is because the breakdown of organic matter releases carbon and other nutrients into the system, boosting zooplankton and macroinvertebrate communities, in turn acting as food sources for fish, plants and other organisms.
Department of Sustainability, Environment, Water, Population and Communities (2012), Blackwater events and water quality. Australian Government
Murray Darling Basin Authority (n.d.) Blackwater. Australian Government
Image attribution: Rights: Australian National Fish Collection, CSIRO, via Atlas of Living Australia. This work is available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Australia (CC BY-NC-SA) see details...
Image Courtesy of NOAA Southwest Fisheries Science Center
Image attribution: By Eric Engbretson for U.S. Fish and Wildlife Service [Public domain], via Wikimedia Commons see details...
Image attribution: Photographer Codman via Wikimedia Commons. This work is available under a Creative Commons Attribution-ShareAlike 3.0 Unported license (CC BY SA 3.0) see details...
Yabby image courtesy of Climate Change Adaptation Research Program (CCARP) Database of Watering Requirements - Images Photographer: Gunther Schmida (CC-BY-NC) see details...
Image attribution: Public Domain. Publisher: Freshwater and Marine Image Bank, University of Washington Libraries Digital Collections Waite, Edgar R. 1921. Illustrated Catalogue of the Fishes of South Australia. Adelaide, Australia : G. Hassell & Son; Fig.221, via Encyclopedia of Life see details...
Coorong and Lower Lakes: Images from interview with Brian Schulz
Tournament fishing
Traditional ecological knowledge
Brian, a recreational fisher, moved to Murray Bridge in 1980, and ran a fishing competition called 'Fantastic Fisherama' at Walker’s Flat and Big Bend in the 1970s. Brian’s passions is protecting the Murray cod. Images depict his business days, fish catches and the stomach lining of a Murray Cod (which he explains in his interview, represents the birthplace of the fish). Images provided by Brian Schulz during his oral history interview.
NSW Department of Primary Industries - NSW Fisheries