High latitude fish in a high CO2 world: Synergistic effects of elevated temperature and carbon dioxide on the metabolic rates of Antarctic notothenioids
High latitude fish in a high CO2 world: Synergistic effects of elevated temperature and carbon dioxide on the metabolic rates of Antarctic notothenioids
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DOI：
10.1016/j.cbpa.2012.07.016
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发表时间：
2013-01-01
影响因子：
2.3
通讯作者：
Place, Sean P.
中科院分区：
文献类型：
--
作者：
Enzor, Laura A.;Zippay, Mackenzie L.;Place, Sean P.
虽然硬骨鱼对温度升高的生理反应已经有了很好的记录，但只有一小部分文献研究了在生态相关情景下海洋酸化对鱼类的影响。此外，很少有数据可以检验海面温度升高和pCO(2)水平可能产生的协同效应，尽管可以确定的是，这两者将在未来几个世纪共同发生变化。在这项研究中，我们研究了温度升高、pCO(2)增加以及这些处理组合对四种南极鱼（Trematomus bernachii， T. hansoni， T. newnesi和Pagothenia borchgrevinki）静息代谢率（RMR）的影响，这些鱼适应了7天、14天和28天的处理条件。虽然大多数物种似乎能够迅速适应增加的pCO(2)，但温度继续影响rmr长达28天。特别是有一种。与驯化时间无关，对任何处理均无驯化反应，可能对环境变化的响应能力降低。此外，我们提供的证据表明，与温度或pCO(2)单独增加相比，温度和pCO(2)协同作用进一步提高RMR和减缓驯化。(C) 2012爱思唯尔公司版权所有。
Although the physiological response of teleost fishes to increased temperature has been well documented, there is only a small body of literature that examines the effects of ocean acidification on fish under ecologically relevant scenarios. Furthermore, little data exists which examines the possible synergistic effects of increased sea surface temperatures and pCO(2) levels, although it is well established that both will co-committedly change in the coming centuries. In this study we examined the effects of increased temperature, increased pCO(2), and a combination of these treatments on the resting metabolic rate (RMR) of four species of notothenioid fish, Trematomus bernacchii, T. hansoni, T. newnesi, and Pagothenia borchgrevinki, acclimated to treatment conditions for 7, 14 or 28 days. While most species appear capable of rapidly acclimating to increased pCO(2), temperature continues to impact RMRs for up to 28 days. One species in particular. T. newnesi, displayed no acclimatory response to any of the treatments regardless of acclimation time and may have a reduced capacity to respond to environmental change. Furthermore, we present evidence that temperature and pCO(2) act synergistically to further elevate the RMR and slow acclimation when compared to temperature or pCO(2) increases alone. (C) 2012 Elsevier Inc. All rights reserved.