Aquatic Animal Health Subprogram: development of management strategies for herpes-like virus infection of abalone
Workshop on Shark Interactions with Aquaculture
There is general agreement between government, environment groups, researchers and various industry groups that interactions between users of the marine environment and large marine animals are already a problem, and that interactions are likely to increase as populations of marine mammals recover and industries further develop. There is considerable public concern about such interactions, both nationally and internationally, as recent incidents have demonstrated. There is a growing interest from consumers in buying “clean and green” seafood, and in “ecotourism”. The problems have been well documented; however, there has been less focus on solutions. The most effective way to deal with the problems is to summarise existing information, identify the most pressing issues (including scientific, conservation and industry perspectives), and determine the status of efforts to resolve these issues. The next step is to select key issues to workshop. The workshop is needed to develop solutions and suggest policies which will prevent interactions from occurring in the first place if possible, and minimise harm. Where interactions cannot be prevented, innovative technologies should be identified that may minimise impact. The discussion paper will inform the workshop. Both the discussion paper and the workshop are expected to provide data for the development of appropriate government policies.
Final report
Investigations into the toxicology of pectenotoxin 2 seco acid and 7-epi pectenotoxin 2 seco acid to aid in a health risk assessment for the consumption of shellfish contaminated with these diarrhetic shellfish toxins in Australia
The need for the research lies in the fact that no guideline values exist for pectenotoxins in shellfish. To produce these guidelines toxicological data need to be produced and currently there is a lack of knowledge of the PTX metabolism and mechanisms of toxicity. There is currently no oral toxicology data on the PTX2- seco acids and thus their inpact on human health cannot be assessed. There have been no published works of their metabolism in mammals or humans, and their chronic effects on health are unknown. The clinical symptoms are non-specific to DSP poisoning and it is believed that cases of bacterial poisoning and DSP are mis-diagnosed due to lack of toxicological information.
The presence of pectenotoxins can impose significant economic burden on the shellfish industry. Clear toxicological data on pectenotoxins will be used to undertake a risk assessment of pectenotoxins to enable the shellfish industry and regulators to make informed decisions about the withdrawal of product from sale or closure of farms in the presence of pectenotoxins in shellfish.