Climate Change Data Portal
DOI | 10.1016/j.jtherbio.2018.12.021 |
Effects of an unprecedented summer heatwave on the growth performance, flesh colour and plasma biochemistry of marine cage-farmed Atlantic salmon (Salmo salar) | |
Wade, Nicholas M.1; Clark, Timothy D.2,3; Maynard, Ben T.2; Atherton, Stuart4; Wilkinson, Ryan J.5; Smullen, Richard P.5; Taylor, Richard S.2 | |
发表日期 | 2019 |
ISSN | 0306-4565 |
卷号 | 80页码:64-74 |
英文摘要 | Global seawater temperatures are increasing and becoming more variable, with consequences for all marine animals including those in food production systems. In several countries around the world,arming of Atlantic salmon (Salmo solar) occurs towards the upper end of the thermal tolerance window for this species, and marked effects on salmon production during summers have been experienced but never empirically investigated. This project tracked the effects of an extreme summer heatwave on two different cohorts of fish stocked into farm cages either during early winter (EW) or late winter (LW). The farm site experienced an unprecedented high water temperature event, with a peak water temperature of 22.9 degrees C and 117 days above 18 degrees C. Fish in both EW and LW cohorts experienced a temperature-induced cessation of voluntary feed intake as well as inefficient osmoregulatory, liver and renal function during high temperature periods. Flesh colour declined primarily in the dorsal and ventral regions of the fillet and secondarily along the midline, with over 20% of fish demonstrated a complete loss of flesh colour during the months of March and April. A return to feeding in autumn occurred faster in some fish and caused a marked bimodal size distribution to appear within both the EW and LW cohorts as autumn progressed. However, the LW cohort returned to feeding at seawater temperatures of 20.2 degrees C, compared with 18.6 degrees C for the EW cohort. There was a strong positive relationship between fillet colour recovery and residual condition index (RCI). These findings identified alkaline phosphatase as a potential marker to non-destructively track individual fish for signs of recovery after a thermal stress event, and shed light on the physiological consequences of marine heatwaves on fishes. This study also identified that supporting feed intake or promoting a return to feeding may help mitigate the negative impacts of climate warming on cultured Atlantic salmon. |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Zoology |
来源期刊 | JOURNAL OF THERMAL BIOLOGY
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/92448 |
作者单位 | 1.CSIRO Agr & Food, Queensland Biosci Precinct, St Lucia, Qld 4067, Australia; 2.CSIRO Agr & Food, Hobart, Tas 7000, Australia; 3.Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas 7001, Australia; 4.Petuna Aquaculture, 134 Tarleton St, East Devonport, Tas 7310, Australia; 5.Ridley Aquafeed, 31 Robart Court, Narangba, Qld 4504, Australia |
推荐引用方式 GB/T 7714 | Wade, Nicholas M.,Clark, Timothy D.,Maynard, Ben T.,et al. Effects of an unprecedented summer heatwave on the growth performance, flesh colour and plasma biochemistry of marine cage-farmed Atlantic salmon (Salmo salar)[J],2019,80:64-74. |
APA | Wade, Nicholas M..,Clark, Timothy D..,Maynard, Ben T..,Atherton, Stuart.,Wilkinson, Ryan J..,...&Taylor, Richard S..(2019).Effects of an unprecedented summer heatwave on the growth performance, flesh colour and plasma biochemistry of marine cage-farmed Atlantic salmon (Salmo salar).JOURNAL OF THERMAL BIOLOGY,80,64-74. |
MLA | Wade, Nicholas M.,et al."Effects of an unprecedented summer heatwave on the growth performance, flesh colour and plasma biochemistry of marine cage-farmed Atlantic salmon (Salmo salar)".JOURNAL OF THERMAL BIOLOGY 80(2019):64-74. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。