https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51291 Wed 30 Aug 2023 10:28:28 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51662 Wed 13 Sep 2023 10:00:39 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33206 Wed 12 Sep 2018 16:43:08 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:31099 Wed 11 Apr 2018 13:02:45 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14058 Wed 11 Apr 2018 09:29:33 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50883 Tue 15 Aug 2023 10:19:15 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:43086 n = 1,130 fish) and incorporated into a bioenergetic model (the “primary” model) that included diet variability (n = 144 prey sources) and ontogenetic changes in metabolism (1–7 year) to estimate lifetime consumption. We quantified error by building nine model scenarios that each incorporated different spatiotemporal diet data of four published studies. The model scenarios produced individual lifetime consumption estimates that were between 25% lower and 15% higher than the primary model (maximum difference was 53%, range 11.7–17.8 kg). When consumption (in mass) was held constant, differences in diet quality among models caused a several-fold range in growth rate (0.04–1.07 g day^–1). Our findings showcase the large uncertainty in consumption rate estimates due to diet diversity, and illustrate that caution is required when considering bioenergetic results among locations, times, and ontogeny.]]> Tue 13 Sep 2022 12:33:26 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53634 Tue 12 Dec 2023 15:47:17 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44300 Tue 11 Oct 2022 16:05:32 AEDT ]]> 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: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:166 Thu 25 Jul 2013 09:09:46 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40989 70% for salinity treatments other than the lowest salinity. Survival was 0% in the lowest salinity and all prawns had died within 3 days. Salinity did not appear to impact relative growth across the range of salinities examined. In contrast, relative somatic condition was greater at lower salinities and was negatively correlated with salinity, indicating lower salinities promote enhanced somatic condition in School Prawn. Total fatty acid concentration showed no relationship with salinity or somatic condition index. However, total fatty acid concentration did have a significant positive relationship with total amino acid concentration. Total amino acid concentration showed no linear relationship with salinity or somatic condition index. Quantitative profiling of individual fatty acids and amino acids showed some changes in response to salinity. Alpha-aminoadipic acid showed a significant positive relationship with salinity. These complex patterns suggest several shifts in cellular chemistry may occur throughout the salinity range investigated, potentially with metabolic consequences. These results highlight the complex responses of estuarine crustaceans to changes in salinity.]]> Thu 21 Jul 2022 09:34:25 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:56014 Thu 18 Jul 2024 08:52:29 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7702 Sat 24 Mar 2018 10:47:55 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13563 Sat 24 Mar 2018 10:35:57 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7612 Sat 24 Mar 2018 08:34:42 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1652 Sat 24 Mar 2018 08:30:28 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1165 Sat 24 Mar 2018 08:28:43 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12301 Sat 24 Mar 2018 08:11:38 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19190 Sat 24 Mar 2018 07:55:02 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:21025 Sat 24 Mar 2018 07:50:33 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:3476 Sat 24 Mar 2018 07:20:29 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:24116 Sat 24 Mar 2018 07:11:43 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40787 Mon 18 Jul 2022 16:07:20 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40434 500 μg L−1(acetamiprid). To assess uptake and elimination, shrimp were exposed to a fixed 5 μg L−1 water concentration for eight days (uptake) or four days of exposure followed by four days of depuration (elimination). Neonicotinoid water and tissue concentrations were measured by liquid chromatography-mass spectrometry following solid-phase extraction and QuEChER extraction respectively. The lower toxicity associated with acetamiprid could be associated with lower accumulation in the tissue, with concentrations remaining below 0.01 μg g−1. The activity of acetylcholinesterase, catalase and glutathione S-transferase in abdominal tissues was determined by spectrophotometric assay, with significant sublethal effects detected for all four neonicotinoids. Depuration reduced the tissue concentration of the active ingredient and reduced the activity of oxidative stress enzymes. Given acetamiprid showed no acute toxicity and reduced impact on the enzymatic activity of P. monodon, it may be an appropriate alternative to other neonicotinoids in shrimp producing areas.]]> Mon 08 Aug 2022 13:25:28 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37668 Dendronephthya australis, with its limited distribution along the central New South Wales (NSW) coastline, forms a habitat within the benthic estuarine environment that supports commercially significant and protected marine species. However, the functional role of the soft coral within this system is unknown. Organisms from primary producers through to secondary consumers were sampled from soft coral and sponge habitats inside the Port Stephens estuary, NSW, Australia in 2014. A food web model of the benthic habitat, created using stable isotopes of carbon and nitrogen, was used to describe the functional role of the soft coral in comparison to sponges, another important habitat for commercially significant and protected marine species. Primary consumers accessed a range of benthic and pelagic energy sources; however, secondary consumers were almost entirely dependent on pelagic energy sources. Soft coral and sponges accessed different primary sources for their energy requirements. There was no evidence that D. australis was used as a direct food source by consumers other than nudibranchs. In contrast, sponges were trophically linked with secondary consumers and are likely to play a direct role in pelagic energy transfer. Amphipods collected from the branches of D. australis were identified as major prey components in the diet of protected syngnathids, suggesting that while the soft coral functions as critical habitat, it is indirectly linked to higher trophic levels.]]> Fri 25 Jun 2021 13:34:15 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33047 Fri 24 Aug 2018 11:32:01 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41757 Fri 12 Aug 2022 11:42:23 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53609 Fri 08 Dec 2023 16:08:17 AEDT ]]>