Climatic, physical, and biogeochemical changes drive rapid oxygen loss and recovery in a marine ecosystem.

ABSTRACT: Dissolved oxygen (DO) concentrations shape the biogeochemistry and ecological structure of aquatic ecosystems; as a result, understanding how and why DO varies in space and time is of fundamental importance. Using high-resolution, in situ DO time-series collected over the course of a year in a novel marine ecosystem (Jellyfish Lake, Palau), we show that DO declined throughout the marine lake and subsequently recovered in the upper water column. These shifts were accompanied by variations in water temperature and were correlated to changes in wind, precipitation, and especially sea surface height that occurred during the 2015-2016 El Niño-Southern Oscillation event. Multiple approaches used to calculate rates of community respiration, net community production, and gross primary production f

SUBMITTER: Wilson J 

PROVIDER: S-EPMC6834605 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature