Measuring deoxygenation effects on marine predators: A new animal-attached archival tag recording in situ dissolved oxygen, temperature, fine-scale movements and behaviour

IF 6.3 2区 环境科学与生态学 Q1 ECOLOGY
Ivo da Costa, David W. Sims, Bruno Loureiro, Matt J. Waller, Freya C. Womersley, Alexandra Loveridge, Nicolas E. Humphries, Emily J. Southall, Marisa Vedor, Gonzalo Mucientes, Sophie Prendergast, Jorge Fontes, Pedro Afonso, Bruno C. L. Macena, Yuuki Y. Watanabe, Nuno Queiroz
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引用次数: 0

Abstract

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测量脱氧对海洋捕食者的影响:一种新的动物附着档案标签,可就地记录溶解氧、温度、细尺度运动和行为
全球气候导致的海洋变暖使溶解氧(DO)水平下降(海洋脱氧),从而导致缺氧区扩大,这将影响海洋动物的活动、行为、生理和分布。然而,人们对动物对低溶解氧的精确反应仍然知之甚少,因为很少在现场记录动物的运动和活动水平以及瞬时溶解氧。我们介绍了一种新的动物附着(溶解氧测量,DOME)档案标签,除了记录溶解氧的光学氧传感器外,还有温度和深度传感器、用于精细运动和活动的三轴加速度计以及用于标签回收的全球定位系统。所有传感器都集成在一块电子板上。校准测试表明,DOME 标签与出厂校准的溶解氧传感器之间的平均差很小(平均相对误差为 5%)。在比最长部署时间长三倍的测试期间,没有发生时间漂移。在北大西洋中部对四条大青鲨(Prionace glauca)进行的部署显示,从海面到最大 404 米处有规律的垂直摆动。潜水鲨鱼的剖面记录到的溶解氧浓度范围为 217 到 272 μmol L-1,温度在 13°C 到 23°C 之间,并在大约 45 米深处发现了氧气最大值,所有这些都与船上的测量结果一致。有趣的是,与更深的水层相比,鲨鱼在最上层 85 米处爆发性游动的时间比例更大,这可能是因为表层有更多的猎物。DOME 标签描述了与精确测量的原位溶解氧和温度相关的大青鲨精细尺度运动和活动水平,有可能为了解动物在低氧环境中的表现提供新的视角。开发在一块电子板上安装物理化学和运动传感器的标签,是在更大的时空尺度(数千公里上的数月)上卫星转发这些数据,以确定海洋动物对热浪和脱氧事件的直接和间接反应的第一步。
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来源期刊
CiteScore
11.60
自引率
3.00%
发文量
236
审稿时长
4-8 weeks
期刊介绍: A British Ecological Society journal, Methods in Ecology and Evolution (MEE) promotes the development of new methods in ecology and evolution, and facilitates their dissemination and uptake by the research community. MEE brings together papers from previously disparate sub-disciplines to provide a single forum for tracking methodological developments in all areas. MEE publishes methodological papers in any area of ecology and evolution, including: -Phylogenetic analysis -Statistical methods -Conservation & management -Theoretical methods -Practical methods, including lab and field -This list is not exhaustive, and we welcome enquiries about possible submissions. Methods are defined in the widest terms and may be analytical, practical or conceptual. A primary aim of the journal is to maximise the uptake of techniques by the community. We recognise that a major stumbling block in the uptake and application of new methods is the accessibility of methods. For example, users may need computer code, example applications or demonstrations of methods.
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