标题:AZFP论文:从海冰到海豹:北极的一个系泊海洋生态系统观测站
Abstract
Although Arctic marine ecosystems are changing rapidly, year-round monitoring is currently very limited and presents multiple challenges unique to this region. The Chukchi Ecosystem Observatory (CEO) described here uses new sensor technologies to meet needs for continuous, highresolution, and year-round observations across all levels of the ecosystem in the biologically productive and seasonally ice-covered Chukchi Sea off the northwest coast of Alaska. This mooring array records a broad suite of variables that facilitate observations, yielding better understanding of physical, chemical, and biological couplings, phenologies, and the overall state of this Arctic shelf marine ecosystem. While cold temperatures and 8 months of sea ice cover present challenging conditions for the operation of the CEO, this extreme environment also serves as a rigorous test bed for innovative ecosystem monitoring strategies. Here, we present data from the 2015–2016 CEO deployments that provide new perspectives on the seasonal evolution of sea ice, water column structure, and physical properties, annual cycles in nitrate, dissolved oxygen, phytoplankton blooms, and export, zooplankton abundance and vertical migration, the occurrence of Arctic cod, and vocalizations of marine mammals such as bearded seals. These integrated ecosystem observations are being combined with ship-based observations and modeling to produce a time series that documents biological community responses to changing seasonal sea ice and water temperatures while establishing a scientific basis for ecosystem management.
摘要:
尽管北极海洋生态系统正在迅速变化,但目前全年监测非常有限,并带来了该地区特有的多重挑战。这里描述的楚科奇生态系统观测站(CEO)使用新的传感器技术来满足对阿拉斯加西北海岸生物生产力和季节性冰层覆盖的楚科奇海各级生态系统进行连续、高分辨率和全年观测的需求。该系泊阵列记录了一系列有助于观测的变量,从而更好地了解物理、化学和生物耦合、物候以及北极陆架海洋生态系统的整体状态。尽管寒冷的气温和8个月的海冰覆盖对首席执行官的运营构成了挑战,但这种极端环境也是创新生态系统监测策略的严格试验台。在这里,我们展示了2015-2016年首席执行官部署的数据,这些数据为海冰的季节性演变、水柱结构和物理性质、硝酸盐、溶解氧、浮游植物水华和出口的年度周期、浮游动物丰度和垂直迁移、北极鳕鱼的出现以及胡须海豹等海洋哺乳动物的发声提供了新的视角。这些综合生态系统观测正在与基于船舶的观测和建模相结合,以产生一个时间序列,记录生物群落对季节性海冰和水温变化的反应,同时为生态系统管理奠定科学基础。
关键词:AZFP鱼类浮游动物声学剖面仪,系泊海洋生态系统观测站,Echosounder 回声探测仪,海洋鱼类调查