227 results

Aquatic Animal Health Subprogram: Tools for investigation of the nodavirus carrier state in marine, euryhaline and freshwater fish and control of NNV through integrated management

Project number: 2008-041
Project Status:
Completed
Budget expenditure: $463,365.00
Principal Investigator: Richard Whittington
Organisation: University of Sydney (USYD)
Project start/end date: 31 Mar 2009 - 29 Mar 2012
Contact:
FRDC

Need

This project relates directly to the FRDC VNN Research and Development Plan, to facilitate industry profitability, sustainability, growth and development. There is an overarching need to measure and then reduce the risk to fisheries and aquaculture sectors (including natural resources) associated with transfer of nodaviruses. The aquaculture industry is proactive and responsible (eg triple bottom line reporting) and wishes to manage risks based on sound science. Industry acknowledges a residual risk that cannot be controlled: virus prevalence in the wild and natural fish movements. However, there is an immediate need for industry to conduct business in the face of unknowns with respect to true disease status. While there is a need to ensure that infected, but apparently healthy, stock are not moved to areas that are considered free of the disease/disease agent, it is of fundamental importance for the sustainability of the barramundi aquaculture industry and developing species ventures such as Australian bass that stock are translocated. Current tests for determining disease status are considered inadequate, therefore biosecurity protocols in the short-term are required to address the risk of introduction of disease with water, broodstock and fomites. As new information becomes available through R&D, these protocols will be revised and improved as needed to improve biosecurity. In the meantime, protocols are needed to manage risks with incomplete information and without overburdening industry with uneconomic or unwarranted requirements. There is need for mitigation of impacts on translocation: hatchery to nursery to grow-out; hatchery to wild (eg stocking for recreational fishing); both intra-state and interstate translocations, access to overseas markets; sourcing broodstock from the wild. Financial impacts, environmental impacts and mulitsectorial impacts at level of commercial, recreational and regulatory sectors all need to be addressed.

Objectives

1. To develop and validate a real-time PCR method for the detection and identification of betanodaviruses
2. To develop and evaluate the applicability of serological tests for detection and identification of betanodaviruses
3. To transfer developed technology to Australian diagnostic laboratories
4. To provide a basis for development of a national proficiency testing scheme for the detection and identification of betanodaviruses
5. To provide recommendations for improved biosecurity protocols in relation to nodavirus infection and fish translocation

Final report

ISBN: 978-1-74210-301-3
Author: Richard Whittington
Environment
PROJECT NUMBER • 2017-149
PROJECT STATUS:
COMPLETED

Planning for a Blue Future Salmon - informing R&D, regulation and industry development

The Tasmanian salmon industry is seeking to grow production safely and sustainably in the next two decades, further increasing the tangible benefits to the Tasmanian community. Our aim, through the Tasmanian Global Salmon Symposium partnership, is to deliver this by being the most environmentally...
ORGANISATION:
University of Tasmania (UTAS)
People
Environment
PROJECT NUMBER • 2006-243
PROJECT STATUS:
COMPLETED

Aquatic Animal Health Subprogram: development of management strategies for herpes-like virus infection of abalone

In January 2006, a previously unknown herpes‐like virus was identified as being the most likely cause of mass mortalities of abalone (Haliotis spp.) in a number of aquaculture farms in south‐west and central Victoria (Hardy‐Smith, 2006). The disease caused by the virus was named abalone viral...
ORGANISATION:
Agriculture Victoria
Environment
PROJECT NUMBER • 2015-001
PROJECT STATUS:
COMPLETED

Aquatic Animal Health Subprogram: Bonamiasis in farmed Native Oysters (Ostrea angasi)

This project was a collaborative study across three research organisations: Agriculture Victoria, CSIRO (Victoria) and the South Australian Research and Development Institute (SARDI). The overall aim of this collaborative project was to better understand many aspects of infection with the parasite...
ORGANISATION:
Agriculture Victoria

SCRC: IB: Study tour of Chile

Project number: 2012-747
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Brad Evans
Organisation: Salmon Enterprises of Tasmania Pty Ltd
Project start/end date: 29 Aug 2012 - 30 Mar 2013
Contact:
FRDC

Final report

ISBN: 978-1-925983-12-8
Author: Brad Evans
Final Report • 2013-03-31 • 139.28 KB
2012-747-DLD-RTG.pdf

Summary

The Tasmanian Atlantic Salmon Selective Breeding Program (SBP) operates in an environment in which there is no current high level threat of viral disease, and as such, the biosecurity level within the industry is generally low when compared to world standards. The Chilean industry has suffered from one of the greatest and most catastrophic viral outbreaks in the history of aquaculture and has since rebuilt with much greater government and industry self-regulation, leading to stringent biosecurity requirements which are monitored and enforced by government, and independent testing laboratories.

The goal of this visit was to determine which areas of biosecurity are essential to protect the Australian industry from biological threats, and how can we most effectively integrate them into our commercial systems in order to avoid the potentially catastrophic results of a viral outbreak within the Tasmanian industry.

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