8 results
People
PROJECT NUMBER • 2002-652
PROJECT STATUS:
COMPLETED

Aquatic Animal Health Subprogram: enhancement of the emergency disease management capability in Victoria - developing a Victorian Control Centres Management Manual

AQUAVETPLAN and its associated manuals, and in particular the ‘AQUAVETPLAN Control Centres Management Manual’ provide the necessary framework for the development of a Victorian management/operational manual that would meet the planning needs in relation to aquatic animal diseases. The...
ORGANISATION:
Agriculture Victoria
Environment
PROJECT NUMBER • 2019-005
PROJECT STATUS:
COMPLETED

Risk analysis to identify and minimise biosecurity risks arising from recycling bivalve mollusc shell waste during shellfish reef restoration projects in Australia

The assessment indicated that heating recycled mollusc shells in water to 80°C for at least 5 minutes would meet the ALOP for all diseases (despite uncertainly for some disease agents due to lack of information, as indicated by ?), and was within the ALOP for all pests of concern. This method...
ORGANISATION:
DigsFish Services Pty Ltd

Assessing occurrence of pathogenic species of the marine bacteria Vibrio in Tasmanian oysters from St Helens

Project number: 2015-042
Project Status:
Completed
Budget expenditure: $29,520.38
Principal Investigator: Tom Madigan
Organisation: SARDI Food Safety and Innovation
Project start/end date: 29 Feb 2016 - 29 Jun 2016
Contact:
FRDC

Need

This is the first time that an illness associated with Vibrio has been traced-back to Tasmanian oysters. Regrettably, this incident occurred in the only major harvesting area in Tasmania that has not been impacted by the current Pacific oyster mortality event.

In Australia the control of Vibrio is currently limited to temperature controls during storage or transport. Pre-harvest controls used by the shellfish quality assurance programs are predicated on controlling risk posed by faecal contamination and biotoxins and are not suitable for controlling risk from these naturally occurring bacteria. Although the recent implementation of the Codex Standard for pathogenic marine vibrios suggests risk in bivalve growing areas should be assessed to ascertain the risk to public health, there has been limited research undertaken in Australia. The studies undertaken to date have generally been short in nature with no comprehensive longitudinal studies being undertaken and methodologies have now progressed significantly, whereas New Zealand has been undertaking a long-term survey to understand the risk posed by these pathogens (Cruz, Hedderley & Fletcher 2015). This issue may become a risk in accessing key markets that are active in monitoring or who regulate for these pathogens.

There is an immediate need to collect information on prevalence for the remainder of the summer period to understand the risk and evaluate if there is a relationship to salinity, temperature and toxic strains. This information will be immediately useful for developing appropriate management plans in this growing region.

This illness outbreak will likely result in Tasmanian Shellfish Quality Assurance Program and the other state programs having to consider how to manage risk in the growing areas and establish what is an acceptable level. The work proposed here could be used as a framework for future work that assesses risk across the bivalve industry Australia-wide.

Objectives

1. Assess for the prevalence of pathogenic Vibrio species in the St Helens harvesting region
2. Assess for the presence of genes associated with virulence in Vibrio parahaemolyticus
3. Evaluate if a relationship exisits that between prevalance and sea water temperature and salinity

Final report

ISBN: 978-1-921563-92-8
Authors: Tom Madigan Kate Wilson Gayle Smith and Alison Turnbull
Industry
PROJECT NUMBER • 2018-102
PROJECT STATUS:
COMPLETED

Understanding Ostreid herpesvirus type 1 risk: alternative hosts and in situ hybridisation

South Australia (SA) has a large edible oyster industry primarily growing Pacific oysters (Crassostrea gigas). The industry is regionally-based, an important employer and a substantial contributor to regional economies. Pacific oyster mortality syndrome (POMS) is a serious infectious disease of C....
ORGANISATION:
Flinders University
Industry
PROJECT NUMBER • 2010-202
PROJECT STATUS:
COMPLETED

Tackling a critical industry bottleneck: developing methods to avoid, prevent and treat biofouling on mussel farms

Biofouling negatively affects shellfish production through several pathways, including: 1) reducing natural mussel spat settlement rates; 2) preying upon mussel spat and juveniles; 3) competing for food with mussels; and 4) smothering established mussels. These problems are well documented in the...
ORGANISATION:
University of Melbourne
Adoption
Industry
PROJECT NUMBER • 2009-752
PROJECT STATUS:
COMPLETED

Seafood CRC: overseas market access for shellfish

The oyster, scallop and mussel industries currently export product to the EU. Due to the periodic occurrence of Okadaic Acid (OA) and Saxitoxin (STX) group toxins in Australian shellfish the implementation of reduced regulatory levels would reduce the amount of product eligible for EU export....
ORGANISATION:
SARDI Food Safety and Innovation
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