An overview of commercial fishing in Lake Illawarra: trends in reported catch and effort, bycatch and discarding

摘要: NSW estuaries have supported valuable commercial fisheries since the early 1800’s. The estuarine fishery is most complex multi-method and multi-species in NSW, producing 2001/02 approximately 3900 t of finfish 890 invertebrates, valued at over $18 million. Lake Illawarra relatively productive important to total catch NSW. Between 1997/98 2001/02, average reported finfish, prawns blue swimmer crab was 120 t, 17 12 respectively, which 2.9%, 2.0% 6.5% dominated by sea mullet (47%) luderick (10%), typical general, dusky flathead, silver biddy, bream river garfish also contributed > 5 each per annum. Most were caught gillnets (75% catch), whereas running nets (76% catch). Bycatch discarding prawning gears similar other Current research improve selectivities prawn changes regulations concerning should reduce bycatch some gear types.