Painted Goby Larvae under High-CO2 Fail to Recognize Reef Sounds.
Painted Goby Larvae under High-CO2 Fail to Recognize Reef Sounds.
复制标题
在高co2下绘制的哥比幼虫无法识别礁声。
DOI：
10.1371/journal.pone.0170838
复制
发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Faria AM
中科院分区：
文献类型：
--
作者：
Castro JM;Amorim MC;Oliveira AP;Gonçalves EJ;Munday PL;Simpson SD;Faria AM
由于人类活动，大气二氧化碳水平一直在以前所未有的速度增加。因此，海洋二氧化碳浓度上升，pH值下降，影响了包括鱼类在内的海洋生物。对于许多沿海海洋鱼类，成鱼栖息地的选择发生在中上层幼体阶段的末期。鱼类幼虫使用包括声音在内的一系列感官线索来确定栖息地的位置。这项研究测试了二氧化碳浓度升高对定居阶段温带鱼类使用成年沿海珊瑚礁栖息地听觉信号的能力的影响。在本世纪末可能发生在近岸地区的上升流事件发生的近岸地区，野生彩虎虎鱼(Pomatoschistus Pictus)的野生晚期幼体暴露在控制二氧化碳(532μatm，pH 8.06)和高二氧化碳(1503μatm，pH 7.66)的条件下，并在听觉选择室中测试它们对夜间珊瑚礁记录的偏好或回避。在控制二氧化碳的条件下饲养的鱼可以辨别珊瑚礁的声音，并被珊瑚礁的记录所吸引。在高二氧化碳条件下饲养的鱼的这种行为发生了变化，定居阶段的幼虫强烈地避免了珊瑚礁的记录。这项研究提供的证据表明，海洋酸化可能会影响温带珊瑚礁鱼类幼体阶段的听觉反应，并可能对它们的生存产生重大影响。
Atmospheric CO2 levels have been increasing at an unprecedented rate due to anthropogenic activity. Consequently, ocean pCO2 is increasing and pH decreasing, affecting marine life, including fish. For many coastal marine fishes, selection of the adult habitat occurs at the end of the pelagic larval phase. Fish larvae use a range of sensory cues, including sound, for locating settlement habitat. This study tested the effect of elevated CO2 on the ability of settlement-stage temperate fish to use auditory cues from adult coastal reef habitats. Wild late larval stages of painted goby (Pomatoschistus pictus) were exposed to control pCO2 (532 μatm, pH 8.06) and high pCO2 (1503 μatm, pH 7.66) conditions, likely to occur in nearshore regions subjected to upwelling events by the end of the century, and tested in an auditory choice chamber for their preference or avoidance to nighttime reef recordings. Fish reared in control pCO2 conditions discriminated reef soundscapes and were attracted by reef recordings. This behaviour changed in fish reared in the high CO2 conditions, with settlement-stage larvae strongly avoiding reef recordings. This study provides evidence that ocean acidification might affect the auditory responses of larval stages of temperate reef fish species, with potentially significant impacts on their survival.