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Ecosystem impacts of hypoxia: thresholds of hypoxia and pathways to recovery

Steckbauer, A.; Duarte, C. M.; Carstensen, J.; Vaquer-Sunyer, R. and Conley, Daniel LU (2011) In Environmental Research Letters 6(2).
Abstract
Coastal hypoxia is increasing in the global coastal zone, where it is recognized as a major threat to biota. Managerial efforts to prevent hypoxia and achieve recovery of ecosystems already affected by hypoxia are largely based on nutrient reduction plans. However, these managerial efforts need to be informed by predictions on the thresholds of hypoxia (i.e. the oxygen levels required to conserve biodiversity) as well as the timescales for the recovery of ecosystems already affected by hypoxia. The thresholds for hypoxia in coastal ecosystems are higher than previously thought and are not static, but regulated by local and global processes, being particularly sensitive to warming. The examination of recovery processes in a number of... (More)
Coastal hypoxia is increasing in the global coastal zone, where it is recognized as a major threat to biota. Managerial efforts to prevent hypoxia and achieve recovery of ecosystems already affected by hypoxia are largely based on nutrient reduction plans. However, these managerial efforts need to be informed by predictions on the thresholds of hypoxia (i.e. the oxygen levels required to conserve biodiversity) as well as the timescales for the recovery of ecosystems already affected by hypoxia. The thresholds for hypoxia in coastal ecosystems are higher than previously thought and are not static, but regulated by local and global processes, being particularly sensitive to warming. The examination of recovery processes in a number of coastal areas managed for reducing nutrient inputs and, thus, hypoxia (Northern Adriatic; Black Sea; Baltic Sea; Delaware Bay; and Danish Coastal Areas) reveals that recovery timescales following the return to normal oxygen conditions are much longer than those of loss following the onset of hypoxia, and typically involve decadal timescales. The extended lag time for ecosystem recovery from hypoxia results in non-linear pathways of recovery due to hysteresis and the shift in baselines, affecting the oxygen thresholds for hypoxia through time. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
hypoxia, recovery
in
Environmental Research Letters
volume
6
issue
2
publisher
IOP Publishing
external identifiers
  • wos:000295326800027
  • scopus:79960313127
ISSN
1748-9326
DOI
10.1088/1748-9326/6/2/025003
project
BECC
language
English
LU publication?
yes
id
ff82ee60-883e-4df6-bf3b-af867f6682dc (old id 2212829)
date added to LUP
2011-11-23 13:17:35
date last changed
2017-10-01 04:13:50
@article{ff82ee60-883e-4df6-bf3b-af867f6682dc,
  abstract     = {Coastal hypoxia is increasing in the global coastal zone, where it is recognized as a major threat to biota. Managerial efforts to prevent hypoxia and achieve recovery of ecosystems already affected by hypoxia are largely based on nutrient reduction plans. However, these managerial efforts need to be informed by predictions on the thresholds of hypoxia (i.e. the oxygen levels required to conserve biodiversity) as well as the timescales for the recovery of ecosystems already affected by hypoxia. The thresholds for hypoxia in coastal ecosystems are higher than previously thought and are not static, but regulated by local and global processes, being particularly sensitive to warming. The examination of recovery processes in a number of coastal areas managed for reducing nutrient inputs and, thus, hypoxia (Northern Adriatic; Black Sea; Baltic Sea; Delaware Bay; and Danish Coastal Areas) reveals that recovery timescales following the return to normal oxygen conditions are much longer than those of loss following the onset of hypoxia, and typically involve decadal timescales. The extended lag time for ecosystem recovery from hypoxia results in non-linear pathways of recovery due to hysteresis and the shift in baselines, affecting the oxygen thresholds for hypoxia through time.},
  articleno    = {025003},
  author       = {Steckbauer, A. and Duarte, C. M. and Carstensen, J. and Vaquer-Sunyer, R. and Conley, Daniel},
  issn         = {1748-9326},
  keyword      = {hypoxia,recovery},
  language     = {eng},
  number       = {2},
  publisher    = {IOP Publishing},
  series       = {Environmental Research Letters},
  title        = {Ecosystem impacts of hypoxia: thresholds of hypoxia and pathways to recovery},
  url          = {http://dx.doi.org/10.1088/1748-9326/6/2/025003},
  volume       = {6},
  year         = {2011},
}