Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile; Center for the Study of Multiple-drivers on Marine Socio-Ecological System (MUSELS), Universidad de Concepción, Concepción, Chile.
Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andrés Bello, Santiago, Chile; Center for the Study of Multiple-drivers on Marine Socio-Ecological System (MUSELS), Universidad de Concepción, Concepción, Chile.
Mar Pollut Bull. 2017 May 15;118(1-2):57-63. doi: 10.1016/j.marpolbul.2017.02.011. Epub 2017 Feb 16.
Tide pools habitats are naturally exposed to a high degree of environmental variability. The consequences of living in these extreme habitats are not well established. In particular, little it is known about of the effects of hypercanic seawater (i.e. high pCO levels) on marine vertebrates such as intertidal pool fish. The aim of this study was to evaluate the effects of increased pCO on the physiology and behavior in juveniles of the intertidal pool fish Girella laevifrons. Two nominal pCO concentrations (400 and 1600μatm) were used. We found that exposure to hypercapnic conditions did not affect oxygen consumption and absorption efficiency. However, the lateralization and boldness behavior was significantly disrupted in high pCO conditions. In general, a predator-risk cost of boldness is assumed, thus the increased occurrence of shy personality in juvenile fishes may result in a change in the balance of this biological interaction, with significant ecological consequences.
潮池生境自然会受到高度的环境可变性的影响。在这些极端生境中生活的后果尚未得到充分证实。特别是，对于高二氧化碳海水（即高 pCO 水平）对海洋脊椎动物（如潮池鱼类）的影响知之甚少。本研究的目的是评估增加 pCO 对潮池鱼类 Girella laevifrons 幼鱼生理和行为的影响。使用了两个名义上的 pCO 浓度（400 和 1600μatm）。我们发现，暴露在高二氧化碳条件下不会影响耗氧量和吸收效率。然而，在高 pCO 条件下，侧化和大胆行为显著受到干扰。一般来说，人们认为大胆行为存在着捕食者风险成本，因此，幼年鱼类中害羞个性的增加可能导致这种生物相互作用的平衡发生变化，从而产生重大的生态后果。
