Budget expenditure: $415,057.00
Project Status:
Current
Principal Investigator: Marty Deveney
Organisation: University of Adelaide
Project start/end date: 30 Sep 2021 - 29 Aug 2024
Contact:
FRDC
SPECIES
Cobia
Yellowspotted Rockcod
Goldspotted Rockcod
Barramundi

Need

Significant losses of farmed barramundi have occurred in coastal marine aquaculture sites utilising marine water sources due to Cryptocaryon irritans infestations. The disease costs have had substantial impacts on commercial aquaculture operations. Cryptocaryon irritans has a direct life cycle with an adult in the skin or gills of the fish and asexual reproduction in the environment away from the fish. The life cycle of C. irritans is temperature and host dependant and treatment must be timed with critical phases of the life history to maximise efficacy. This project will establish this timing to provide guidelines for optimised treatment.

The existing treatments have substantial costs ($3K+/treatment) and a sub-optimal profile for environmental release with high toxicity and environmental persistence. This project will optimise doses of existing treatments, and identify and assess new treatments. Products identified as effective and safe will have optimised guidelines developed for delivery to ensure the best outcome for farms and the environment. Such improvements will support further expansion of the finfish aquaculture industry in Northern Australia.

Objectives

1. Describe the life cycle of Australian C. irritans isolates from Barramundi aquaculture, and describe relevant treatment intervals for different temperatures for C. irritans to maximise benefit from each treatment
2. Screen candidate treatments to identify new products for further assessment
3. Establish efficacy and safety of optimised doses for current treatments and selected candidate treatments in laboratory and small-scale field trials
4. Optimise delivery under field conditions for delivery of new treatments

Related research

Industry
PROJECT NUMBER • 2021-051
PROJECT STATUS:
CURRENT

Preliminary evaluation of electro stunning technology for farmed Barramundi

1. Information about electro-stunning in fish aquaculture (reports, publications, websites, media) found using broad and selective web-searching as well as via on-line databases and then compiled/prioritised into an organised electronic library. The other objectives are addressed from this starting...
ORGANISATION:
Department of Agriculture and Fisheries Brisbane
Industry
Industry