7 results
Industry
Environment
PROJECT NUMBER • 1998-132
PROJECT STATUS:
COMPLETED

Distribution, abundance and population dynamics of beachworms (Onuphidae) in Queensland/NSW and the impact of commercial and recreational fishing

To date, very little research has been done on Australian beachworms (Family: Onuphidae), yet recreational fishing is a very popular activity in Australia and a variety of invertebrates, including beachworms, is used for bait. Exploitation of these animals for use as bait may remove considerable...
ORGANISATION:
University of Queensland (UQ)

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

Project number: 2001-258
Project Status:
Completed
Budget expenditure: $20,000.00
Principal Investigator: Glen Shaw
Organisation: University of Queensland (UQ)
Project start/end date: 28 Mar 2002 - 30 Mar 2003
Contact:
FRDC

Need

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.

Objectives

1. A comprehensive study has been undertaken in which the aims are to (i) develop a robust method for extraction, purification and quantification of pectenotoxins in shellfish, (ii) investigate the pathology caused by the pectenotoxins when ingested orally, (iii) investigate P450 metabolism of the purified PTXs with the use of microarray technology and (iv) conduct a health risk assessment for the consumption of seafood contaminated with pectenotoxins. This study will provide a greater understanding of the metabolism and mechanisms of toxicity for the PTXs and provide information useful in the clinical assessment of poisoned patients and also provide information to be used in the setting of guideline values for pectenotoxins in seafood.

Final report

Environment
Blank
PROJECT NUMBER • 2019-013
PROJECT STATUS:
COMPLETED

Modelling environmental changes and effects on wild-caught species in Queensland

This project studied environmental factors which may be influencing the recruitment, catchability or productivity of Snapper, Pearl Perch, and Spanner Crab stocks in Queensland. Two environmental variables: GSLA and Chl-a were found to have strong associations with either abundance or catchability...
ORGANISATION:
University of Queensland (UQ)
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