there are three broad, historicalconcerns associated with penaeid fishing: (i) poor selectivity (and∗Corresponding author. Tel.: +61 2 6648 3905; fax: +61 2 6651 6580.E-mail address: matt.broadhurst@dpi.nsw.gov.au (M.K. Broadhurst).subsequent discarding; Andrew and Pepperell, 1992); (ii) highenergy usage