Partnership boosts endangered Murray Cod conservation

RecFish SA will study the breeding habits of the endangered Murray Cod in Happy Valley Reservoir, thanks to support provided through SA Water’s 2023-24 Reservoirs Partnership Program.

The annual program supports grassroots events and projects held at South Australia’s reservoir reserves, with up to $10,000 available for each recipient.

Recfish SA Executive Officer Asher Dezsery said its project focuses on educating reservoir visitors about Murray Cod habitat and stock sustainability while establishing critical insights into breeding behaviour, seasonality and reproductive success.

“Murray Cod, a vital recreational species and environmental indicator, pose a challenge in terms of breeding within reservoirs.” Asher said.

“However, the stocked Murray Cod in Happy Valley Reservoir have now reached a naturally reproducing size and condition, weighing approximately five to eight kilograms. We are embarking on a citizen science project aimed at involving the conservation and fishing community in monitoring the breeding success of Murray Cod in reservoirs.

“Key elements of the project include the introduction of food-grade breeding habitats, monitored with underwater cameras capturing time-lapse series showcasing breeding behaviour. This footage will help document Murray Cod nesting, territorial behaviour and egg predation from introduced species like carp and redfin perch.

“This project will use sonar and probe equipment to showcase reservoir depth, structure, oxygen and temperature.”

SA Water’s Manager of Land Catchments and Recreation Dr Brooke Swaffer said the project aims to create a sustainable  population of Murray Cod through natural reproduction, laying the groundwork for the cost-effective introduction of native fish species.

“Our grassroots program is supporting projects to deliver a range of fresh initiatives that enhance visitor experience and encourage active, thriving communities by connecting people with our reservoir reserves around the state,” Brooke said.

“Family sessions fostering a connection to nature, empowering women through kayaking workshops and a ‘Walk on Water’ event are among the other successful recipients this year.”

For more information on SA Water’s Reservoirs Partnership Program, visit sawater.com.au.

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