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首页> 外文期刊>Marine biology >Withstanding multiple stressors: ephyrae of the moon jellyfish (Aurelia aurita, Scyphozoa) in a high-temperature, high-CO2 and low-oxygen environment
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Withstanding multiple stressors: ephyrae of the moon jellyfish (Aurelia aurita, Scyphozoa) in a high-temperature, high-CO2 and low-oxygen environment

机译：承受多种压力：高温，高CO2和低氧环境下的月水母（海藻，海藻）的zo

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摘要

Global change is affecting marine ecosystems through a combination of different stressors such as warming, ocean acidification and oxygen depletion. Very little is known about the interactions among these factors, especially with respect to gelatinous zooplankton. Therefore, in this study we investigated the direct effects of pH, temperature and oxygen availability on the moon jellyfish Aurelia aurita, concentrating on the ephyral life stage. Starved one-day-old ephyrae were exposed to a range of pCO(2) (400-4000 ppm) and three different dissolved oxygen levels (from saturated to hypoxic conditions), in two different temperatures (5 and 15 degrees C) for 7 days. Carbon content and swimming activity were analysed at the end of the incubation period, and mortality noted. General linearized models were fitted through the data, with the best fitting models including two-and three-way interactions between pCO(2), temperature and oxygen concentration. The combined effect of the stressors was small but significant, with the clearest negative effect on growth caused by the combination of all three stressors present (high temperature, high CO2, low oxygen). We conclude that A. aurita ephyrae are robust and that they are not likely to suffer from these environmental stressors in a near future.
机译：全球变化通过变暖，海洋酸化和耗氧等不同压力因素的组合，正在影响海洋生态系统。关于这些因素之间的相互作用，尤其是关于胶状浮游动物的相互作用知之甚少。因此，在这项研究中，我们研究了pH，温度和氧气供应量对月水母Aurelia aurita的直接影响，并着重于其生命周期。饥饿的一日大麦e在两种不同的温度（5和15摄氏度）下暴露于一定范围的pCO（2）（400-4000 ppm）和三种不同的溶解氧水平（从饱和到低氧），持续7天天。在潜伏期结束时分析碳含量和游泳活动，并记录死亡率。通用线性化模型通过数据进行拟合，最佳拟合模型包括pCO（2），温度和氧气浓度之间的双向相互作用和三向相互作用。压力源的综合作用很小但很明显，最明显的负面影响是由于存在的所有三种压力源（高温，高CO2，低氧）的组合引起的。我们得出结论，金黄色葡萄球菌很健壮，并且在不久的将来它们不太可能遭受这些环境压力。

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  • 来源
    《Marine biology》 |2016年第9期|185.1-185.12|共12页
  • 作者

    Alguero-Muniz Maria; Meunier Cedric L.; Holst Sabine; Alvarez-Fernandez Santiago; Boersma Maarten;

  • 作者单位

    Alfred Wegener Inst, Helmholtz Zentrum Polar & Meeresforsch, Biol Anstalt Helgoland, Helgoland, Germany;

    Alfred Wegener Inst, Helmholtz Zentrum Polar & Meeresforsch, Biol Anstalt Helgoland, Helgoland, Germany;

    German Ctr Marine Biodivers Res, Senckenberg Meer, Bioctr Grindel, Martin Luther King Pl 3, D-20146 Hamburg, Germany|German Ctr Marine Biodivers Res, Senckenberg Meer, Zool Museum, Martin Luther King Pl 3, D-20146 Hamburg, Germany;

    Alfred Wegener Inst, Helmholtz Zentrum Polar & Meeresforsch, Biol Anstalt Helgoland, Helgoland, Germany;

    Alfred Wegener Inst, Helmholtz Zentrum Polar & Meeresforsch, Biol Anstalt Helgoland, Helgoland, Germany|Univ Bremen, Bremen, Germany;

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