A Multidisciplinary Approach to Investigate Deep-Pelagic Ecosystem Dynamics in the Gulf of Mexico Following Deepwater Horizon
作者： April B Cook , Andrea M Bernard , Kevin M Boswell , Heather Bracken-Grissom , Marta D’Elia
DOI: 10.3389/FMARS.2020.548880
关键词: Oceanography 、 Hydrography 、 Ecosystem 、 Water column 、 Pelagic zone 、 Ecosystem health 、 Environmental science 、 Physical oceanography 、 Diel vertical migration 、 Biogeochemical cycle
摘要: The pelagic Gulf of Mexico (GoM) is a complex system dynamic physical oceanography (western boundary current, mesoscale eddies), high biological diversity, and community integration via diel vertical migration lateral advection. Humans also heavily utilize this system, including its deep-sea components, for resource extraction, shipping, tourism, other commercial activity. Deepwater Horizon oil spill (DWHOS) occurred at depth ~1500 m (Macondo wellhead), creating persistent toxic mixture hydrocarbons dispersant in the deep-pelagic (water column below 200 depth) habitat. In order to assess impacts DWHOS on habitat, two large-scale research programs, described herein, were designed executed. These ONSAP DEEPEND, aimed quantitatively characterize oceanic ecosystem northern GoM establish time-series with which natural anthropogenic changes could be detected. approach was multi-disciplinary nature included situ sampling, acoustic sensing, water profiling satellite remote AUV numerical modeling, genetic sequencing, biogeochemical analyses. synergy these methodologies has provided new unprecedented perspectives an respect composition, connectivity, drivers, variability.
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