https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Effects of reduced pH on an estuarine penaeid shrimp (metapenaeus macleayi) https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46025 Metapenaeus macleayi). These fisheries have experienced declining productivity over the last ten years and increasing occurrence of catchment-derived stressors in estuaries contribute to this problem. We evaluated the effect of pH 4–7.5 on School Prawn survival at two salinities (27 and 14.5), pH 5, 6 and 7.5 on the predation escape response (PER) speed at two salinities (27 and 14.5), and pH 4 and 7.5 on respiration rates. While mortality appeared to be greater in the high salinity treatment, there was no significant relationship between proportional survival and pH for either salinity treatment. Respiration was significantly slower under acidic conditions and the average PER was almost twice as fast at pH 7.5 compared to pH 5 (p < 0.05), indicating prawns may fall prey to predation more easily in acidic conditions. These findings confirm the hypothesised impacts of acidic water on penaeid prawns. Given that the conditions simulated in these experiments reflect those encountered in estuaries, acidic runoff may be contributing to bottlenecks for estuarine species and impacting fisheries productivity.]]> Wed 09 Nov 2022 15:45:04 AEDT ]]> Lethal and sub-lethal effects of catchment-derived stressors on fisheries productivity https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:56014 Thu 18 Jul 2024 08:52:29 AEST ]]> Lethal and sublethal effects of simultaneous exposure to hypoxia and aluminium on juvenile eastern school prawn https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40787 Mon 18 Jul 2022 16:07:20 AEST ]]>