> Details

Friedrich, J. [Author]; Janssen, F. [Author]; Aleynik, D. [Author]; Bange, Hermann W. [Author]; Boltacheva, N. [Author]; Çagatay, M .N. [Author]; Dale, Andrew W. [Author]; Etiope, G. [Author]; Erdem, Zeynep [Author]; Geraga, M. [Author]; Gilli, A. [Author]; Gomoiu, M. T. [Author]; Hall, P. O. J. [Author]; Hansson, D. [Author]; He, Yunchang [Author]; Holtappels, M. [Author]; Kirf, M. K. [Author]; Kononets, M. [Author]; Konovalov, S. [Author]; Lichtschlag, A. [Author]; Livingstone, D. M. [Author]; Marinaro, G. [Author]; Mazlumyan, S. [Author]; Naeher, S. [Author]; [...]

Investigating hypoxia in aquatic environments: diverse approaches to addressing a complex phenomenon

Reference
management

Bookmarks

Remove from
bookmarks

Share this on Whatsapp

Close

Bookmarks



You can manage bookmarks using lists, please log in to your user account for this.
  • Media type: E-Article
  • Title: Investigating hypoxia in aquatic environments: diverse approaches to addressing a complex phenomenon
  • Contributor: Friedrich, J. [Author]; Janssen, F. [Author]; Aleynik, D. [Author]; Bange, Hermann W. [Author]; Boltacheva, N. [Author]; Çagatay, M .N. [Author]; Dale, Andrew W. [Author]; Etiope, G. [Author]; Erdem, Zeynep [Author]; Geraga, M. [Author]; Gilli, A. [Author]; Gomoiu, M. T. [Author]; Hall, P. O. J. [Author]; Hansson, D. [Author]; He, Yunchang [Author]; Holtappels, M. [Author]; Kirf, M. K. [Author]; Kononets, M. [Author]; Konovalov, S. [Author]; Lichtschlag, A. [Author]; Livingstone, D. M. [Author]; Marinaro, G. [Author]; Mazlumyan, S. [Author]; Naeher, S. [Author]; [...]
  • Published: Copernicus Publications (EGU), 2014-02
  • Language: English
  • DOI: https://doi.org/10.5194/bg-11-1215-2014
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: In this paper we provide an overview of new knowledge on oxygen depletion (hypoxia) and related phenomena in aquatic systems resulting from the EU-FP7 project HYPOX ("In situ monitoring of oxygen depletion in hypoxic ecosystems of coastal and open seas, and landlocked water bodies", www.hypox.net). In view of the anticipated oxygen loss in aquatic systems due to eutrophication and climate change, HYPOX was set up to improve capacities to monitor hypoxia as well as to understand its causes and consequences. Temporal dynamics and spatial patterns of hypoxia were analyzed in field studies in various aquatic environments, including the Baltic Sea, the Black Sea, Scottish and Scandinavian fjords, Ionian Sea lagoons and embayments, and Swiss lakes. Examples of episodic and rapid (hours) occurrences of hypoxia, as well as seasonal changes in bottom-water oxygenation in stratified systems, are discussed. Geologically driven hypoxia caused by gas seepage is demonstrated. Using novel technologies, temporal and spatial patterns of water-column oxygenation, from basin-scale seasonal patterns to meter-scale sub-micromolar oxygen distributions, were resolved. Existing multidecadal monitoring data were used to demonstrate the imprint of climate change and eutrophication on long-term oxygen distributions. Organic and inorganic proxies were used to extend investigations on past oxygen conditions to centennial and even longer timescales that cannot be resolved by monitoring. The effects of hypoxia on faunal communities and biogeochemical processes were also addressed in the project. An investigation of benthic fauna is presented as an example of hypoxia-devastated benthic communities that slowly recover upon a reduction in eutrophication in a system where naturally occurring hypoxia overlaps with anthropogenic hypoxia. Biogeochemical investigations reveal that oxygen intrusions have a strong effect on the microbially mediated redox cycling of elements. Observations and modeling studies of the sediments demonstrate the effect of ...
  • Access State: Open Access