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Dual frequency identification SONAR (DIDSON) facility for sampling benthic and pelagic fish populations

Project Member(s): Booth, D., Gladstone, W.

Funding or Partner Organisation: Australian Research Council (ARC Linkage Infrastructure)

Start year: 2010

Summary: Many Australians enjoy marine and freshwater resources and we are exploiting fisheries and waterways in particular, at an increasing rate. Effective management of fisheries requires understanding the abundance and behaviour of fish. The facility will provide novel acoustic video technology for researchers to count fishes and sharks near weirs, under wharves or logs, within seagrass beds. The DIDSON will also allow accurate and standardised study of fish movements in response to floods, algal blooms or re-stocking events without disturbing the fish or their habitats. This will enhance our understanding of the top-down control by fish or aquatic ecosystems that are directly adjacent to human activity.

Keywords: Sonar, riverine ecology, estuarine ecology, fish behaviour, fish population and dynamics, fish migration

FOR Codes: Marine and Estuarine Ecology (incl. Marine Ichthyology), Climate and Climate Change not elsewhere classified