Greenhouse gas buildup, sardines, submarine eruptions and the possibility of abrupt degradation of intense marine upwellinq ecosystems

Andrew Bakun, Scarla J. Weeks

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

Widespread hypoxia and massive eruptions of noxious, radiatively active gases currently characterize the world's strongest eastern ocean upwelling zone. Theory, modelling results and observations suggest that the world's coastal upwelling zones will undergo progressive intensification in response to greenhouse gas buildup. This presents the prospect of progressive development of similarly degraded marine ecosystems in additional regions and of a contributing feedback loop involving associated additions to the global buildup rate of greenhouse gases, resulting further increases in upwelling intensity, creation of additional sources of greenhouse gas emissions, and so on. Abundant sardine stocks might be a mitigating factor opposing the process.

Original languageEnglish
Pages (from-to)1015-1023
Number of pages9
JournalEcology Letters
Volume7
Issue number11
DOIs
StatePublished - Nov 1 2004

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sardines
greenhouse gases
marine ecosystem
upwelling
greenhouse gas
volcanic eruption
degradation
greenhouse gas emissions
hypoxia
oceans
gases
ocean
gas
modeling
marine ecosystems
world

Keywords

  • Anaerobic processes
  • Climate change
  • Greenhouse gas buildup
  • Hypoxia
  • Regime shift
  • Sardines
  • Submarine gas eruptions
  • Trophic bottleneck
  • Upwelling intensification

ASJC Scopus subject areas

  • Ecology

Cite this

Greenhouse gas buildup, sardines, submarine eruptions and the possibility of abrupt degradation of intense marine upwellinq ecosystems. / Bakun, Andrew; Weeks, Scarla J.

In: Ecology Letters, Vol. 7, No. 11, 01.11.2004, p. 1015-1023.

Research output: Contribution to journalArticle

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