Anticipated Effects of Climate Change on Coastal Upwelling Ecosystems

Ecosystem productivity in coastal ocean upwelling systems is threatened by climate change. Increases in spring and summer upwelling intensity, and associated increases in the rate of offshore advection, are expected. While this could counter effects of habitat warming, it could also lead to more fre...

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Bibliographic Details
Published in:Current climate change reports 2015-06, Vol.1 (2), p.85-93
Main Authors: Bakun, A., Black, B. A., Bograd, S. J., García-Reyes, M., Miller, A. J., Rykaczewski, R. R., Sydeman, W. J.
Format: Article
Language:English
Subjects:
Acidity
Advection
Aquatic birds
Atmospheric Sciences
Biogeography
Carbonates
Climate Change
Climate Change Management and Policy
Climate effects
Climatology
Coastal upwelling
Community composition
Diffusion rate
Earth and Environmental Science
Ecological Impacts of Climate Change (A Baker
Ecosystems
Eddy diffusion
El Nino
El Nino phenomena
El Nino-Southern Oscillation event
Environment
Fish
Fish larvae
Fishery resources
General circulation models
Greenhouse gases
Hypoxia
Larvae
Marine ecosystems
Marine mammals
Mixed layer depth
Nesting
Ocean circulation
Oceanography
Oceans
Offshore
Overfishing
Pelagic fish
Plankton
Prey
Seabirds
Section Editor
Southern Oscillation
Stratification
Temperature
Thermocline
Topical Collection on Ecological Impacts of Climate Change
Turbulent diffusion
Upwelling
Wind
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Summary:Ecosystem productivity in coastal ocean upwelling systems is threatened by climate change. Increases in spring and summer upwelling intensity, and associated increases in the rate of offshore advection, are expected. While this could counter effects of habitat warming, it could also lead to more frequent hypoxic events and lower densities of suitable-sized food particles for fish larvae. With upwelling intensification, ocean acidity will rise, affecting organisms with carbonate structures. Regardless of changes in upwelling, near-surface stratification, turbulent diffusion rates, source water origins, and perhaps thermocline depths associated with large-scale climate episodes (ENSO) maybe affected. Major impacts on pelagic fish resources appear unlikely unless couples with overfishing, although changes toward more subtropical community composition are likely. Marine mammals and seabirds that are tied to sparsely distributed nesting or resting grounds could experience difficulties in obtaining prey resources, or adaptively respond by moving to more favorable biogeographic provinces.
ISSN:2198-6061
2198-6061
DOI:10.1007/s40641-015-0008-4