https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:28245 Wed 11 Apr 2018 15:05:52 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40212 Wed 06 Jul 2022 16:05:38 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:54490 Tue 27 Feb 2024 15:13:08 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40846 Tue 19 Jul 2022 11:15:17 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37663 Tue 09 Mar 2021 18:06:03 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36708 Pagrus auratus) where more than 10% of the total catch is comprised of unwanted elasmobranchs and the presence of elasmobranchs reduces the catch of target species. Over 1000 fish traps were deployed in a fishery-dependent survey in New South Wales, Australia. Standardised catch rates indicate that the incorporation of magnets into fish traps significantly reduced incidences of elasmobranch bycatch (mainly Brachaelurus waddi) by over a third, while increasing the amount of target fish caught by an equivalent amount. Together these results suggest that magnets can be used as an effective bycatch reduction device that reduces incidences of elasmobranch bycatch while increasing the profitability of fish traps for fishermen. Future studies should aim to replicate these results in areas where different species of elasmobranchs occur.]]> Thu 25 Jun 2020 15:56:41 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36707 Catostylus mosaicus, can be rapidly estimated over much larger areas than traditional field sampling and without requiring fishing effort. Estimated biomass within Smiths Lake, New South Wales, Australia was roughly 350 kg per hectare, and size frequency distributions were skewed towards larger specimens compared to previous studies in other locations. Drone counts were similar to a visual census which provides further evidence that this rapid and relatively automated method has potential to be used more widely in ecological monitoring.]]> Thu 25 Jun 2020 15:42:42 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42124 Thu 25 Aug 2022 11:57:54 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52213 Thu 05 Oct 2023 10:23:35 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30702 Metapenaeus macleayi) and Mud Crab (Scylla serrata), two commercially important crustaceans in Australia. Perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate (PFHxS), and perfluorooctanoic acid (PFOA) were present in samples of both species collected following exposure under natural conditions in contaminated estuaries. Depuration was tested in uncontaminated water for 33 days. PFOA was present at levels close to LOR in both species, and was not detected after 4.5 h and 72 h in School Prawn and Mud Crab respectively. PFHxS was rapidly depurated by School Prawn, and had a depuration half-life of 5.7 h. PFOS was also depurated by School Prawn, with a depuration half-life of 158.5 h. PFHxS and PFOS concentrations were highly variable in Mud Crab both at the start, and during the depuration experiment, and a depuration model could not be fitted to the data. For School Prawn, depuration of total PFASs to the relevant screening value for protection of human health (9.1 μg kg^{− 1}) occurred within 7.1 h. Rapid depuration of PFASs in School Prawn indicates that human health risks associated with consumption may decrease as this species migrates away from the contamination source. Further research is required to better understand the relationships between contaminant load and life-history characteristics (such as growth, reproduction, and moult cycle) in Mud Crab, and future work should target broader time frames for depuration in this species.]]> Sat 24 Mar 2018 07:35:08 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3680 Sat 24 Mar 2018 07:23:01 AEDT ]]>