Cited by 3,253Marine and coastal ecosystemsMarine Biology and Ecology ResearchMarine and fisheries research

Declining oxygen in the global ocean and coastal waters

Open access
Breitburg, Denise, Levin, Lisa A., Oschlies, Andreas, Grégoire, Marilaure, Chavez, Francisco P., Conley, Daniel J., Garçon, Véronique, Gilbert, Denis +14 more·2018·Science

Abstract

Beneath the waves, oxygen disappears: As plastic waste pollutes the oceans and fish stocks decline, unseen below the surface another problem grows: deoxygenation. Breitburg et al. review the evidence for the downward trajectory of oxygen levels in increasing areas of the open ocean and coastal waters. Rising nutrient loads coupled with climate change—each resulting from human activities—are changing ocean biogeochemistry and increasing oxygen consumption. This results in destabilization of sediments and fundamental shifts in the availability of key nutrients. In the short term, some compensatory effects may result in improvements in local fisheries, such as in cases where stocks are squeezed between the surface and elevated oxygen minimum zones. In the longer term, these conditions are unsustainable and may result in ecosystem collapses, which ultimately will cause societal and economic harm. Science , this issue p. eaam7240

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Crossref · 10.1126/science.aam7240

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  • As climate change accelerates, earlier onset and later termination of hypoxic conditions and latitudinal expansions may make co-occurrence of HABs and hypoxia more common.

    “As climate change accelerates, an earlier onset and later termination of hypoxic conditions along with latitudinal expansions (Breitburg et al., 2018), may also make the co-occurrence of HABs and hypoxia more common.”

    From Harmful algal blooms: A climate change co-stressor in marine and freshwater ecosystems (2020) · cites this paper as Breitburg et al., 2018

    The ‘Climate change in coastal waters’ section says higher air temperatures can cause earlier onset and longer durations of hypoxia in eutrophic systems, broadly supporting the seasonal-timing claim. The paper also describes expansion of low-oxygen areas, but the passages found do not establish specifically latitudinal expansion of hypoxic conditions or explicitly predict later termination. The proposed increase in HAB–hypoxia co-occurrence is the citing authors’ inference, not the part directly attributed to this source. (LLM, conf=0.84)

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  • The interactive effects between HABs and hypoxia are relatively unknown.

    “Despite the awareness of ocean deoxygenation as an emergent climate change stressor (Levin and Breitburg, 2015;Breitburg et al., 2018), the interactive effects between HABs and hypoxia are relatively unknown.”

    From Harmful algal blooms: A climate change co-stressor in marine and freshwater ecosystems (2020) · cites this paper as Breitburg et al., 2018

  • Climate change likely contributes to coastal warming and dissolved oxygen declines because shallow bathymetries and complex topographies can lead to rapid warming and shifts in watershed processes accelerate dissolved oxygen declines in many regions.

    “Climate change likely contributes to these trends as the shallow bathymetries and complex topographies can lead to rapid warming (Scanes et al., 2020), and shifts in watershed processes (e.g.nutrient delivery) accelerate DO declines in many regions (Breitburg et al., 2018;Howarth et al., 2011).”
  • Large amounts of organic matter associated with algal blooms can stimulate microbial respiration that depletes dissolved oxygen and produces CO2, promoting hypoxia and acidification.

    “Large amounts of organic matter associated with algal blooms can stimulate microbial respiration that depletes dissolved oxygen and produces CO 2 , promoting hypoxia (Fig. 1; Diaz and Rosenberg, 2008;Gilbert et al., 2010;Breitburg et al., 2018) and acidification (Fig. 1; Cai et al., 2011;Waldbusser et al., 2011;Wallace et al., 2014;Baumann et al., 2015).”

    From Harmful algal blooms: A climate change co-stressor in marine and freshwater ecosystems (2020) · cites this paper as Breitburg et al., 2018

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Research works printed but not linked: 1

  1. [13]13. K. Isensee et al., "The ocean is losing its breath" in Ocean and Climate Scientific Notes, ed. 2 (2016), pp. 20-32; www.ocean-climate.org.

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Authors
Breitburg, D., Levin, L. A., Oschlies, A., Grégoire, M., Chavez, F. P., Conley, D. J., Garçon, V., Gilbert, D., Gutiérrez, D., Isensee, K., Jacinto, G. S., Limburg, K. E., Montes, I., Naqvi, S. W. A., Pitcher, G. C., Rabalais, N. N., Roman, M. R., Rose, K. A., Seibel, B. A., Telszewski, M., Yasuhara, M., & Zhang, J.
Affiliations
  • Smithsonian Environmental Research Center (US)
  • Scripps Institution of Oceanography (US)
  • GEOMAR Helmholtz Centre for Ocean Research Kiel (DE)
  • University of Liège (BE)
  • Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039, USA.
  • Lund University (SE)
  • CNRS/Laboratoire d’Etudes en Géophysique et Océanographie Spatiales, 31401 Toulouse, CEDEX 9, France.
  • Fisheries and Oceans Canada (CA)
  • Universidad Peruana Cayetano Heredia (PE)
  • Intergovernmental Oceanographic Commission of UNESCO (FR)
  • University of the Philippines Diliman (PH)
  • SUNY College of Environmental Science and Forestry (US)
  • Instituto Geofísico del Perú, Lima, Perú.
  • Kuwait Institute for Scientific Research (KW)
  • University of Cape Town (ZA)
  • Louisiana State University (US)
  • University of Maryland Center for Environmental Science (US)
  • University of South Florida St. Petersburg (US)
  • Instytut Oceanologii Polskiej Akademii Nauk (PL)
  • University of Hong Kong (HK)
  • State Key Laboratory of Estuarine and Coastal Research (CN)
Corresponding author
Breitburg, Denise
Venue
Science
Published
2018-01-05
Volume
359
Issue
6371
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2781567654
Cited by
3,253
References
129
Citations by year
2026: 402 · 2025: 446 · 2024: 528 · 2023: 449 · 2022: 383 · 2021: 450 · 2020: 281 · 2019: 212 · 2018: 96 · 2017: 1 · 2015: 1
FWCI
21.83
Type
journal article
Language
en
Licence
public-domain
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Helmholtz Centre for Ocean Research Kiel (GEOMAR) (acceptedVersion)
  • NOAA Institutional Repository (submittedVersion, public-domain)
  • Civil War Book Review (submittedVersion)
  • Digital Commons - University of South Florida (University of South Florida) (submittedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
  • Open Repository and Bibliography (University of Liège) (submittedVersion)
  • Smithsonian Digital Repository (Smithsonian Institution) (submittedVersion)
Funders
  • DFG (SFB754)
  • NOAA-CSCOR (NA10NOS4780138)
  • Maryland Sea Grant (SA75281450-P)
  • NSF-EAR (1324095)
  • FNRS and the BENTHOX program (T.1009.15)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Biology and Ecology Research
  • Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
Keywords
ocean deoxygenation, coastal waters, microbial respiration, oxygen solubility, nutrient loading, global warming, marine fisheries, estuarine ecosystems
MeSH terms
Adaptation, Biological, Animals, Conservation of Natural Resources, Environmental Monitoring, Fisheries, Oceans and Seas, Oxygen, Seawater, Global Warming, Aquatic Organisms

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