The blue grenadier stock is potentially the largest fish stock in the SEF, and following the decline in quota of orange roughy, the need to assess its potential became urgent. The stock has been surveyed using traditional trawl methods and acoustics, but both methods provide only 'snapshot'...

1 A method was developed to rapidly assess the effectiveness of trap designs and identify the causes of differences in effectiveness. 2 Fish entry and escape probabilities are correlated across trap designs. The probabilities are very high for '0' and 'S' trap designs and are much lower for the 'Z'...

BACKGROUND Australian mud crab fisheries extend from northern Western Australia (WA) across the Northern Territory (NT) and Queensland (Qld) through to northern New South Wales (NSW) and are managed across the four jurisdictions. The product from each jurisdiction is sold into a...