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Cited by 52Marine and fisheries researchMarine animal studies overviewOceanographic and Atmospheric Processes

Advection and starvation cause krill (Euphausia pacifica) decreases in 2005 Northern California coastal populations: Implications from a model study: KRILL DECREASES IN 2005 OFF CALIFORNIA

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Dorman, Jeffrey G., Powell, Thomas M., Sydeman, William J., Bograd, Steven J.·2011·Geophysical Research Letters
DOI 10.1029/2010gl046245
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Abstract

A decrease in krill abundance during 2005 in regions of the California Current has been hypothesized to have had immediate (seabird) and long-term (salmon) negative impacts on upper trophic level predators. We use a suite of coupled models to examine the population biology and spatial and temporal distribution of the krill species Euphausia pacifica during the winter/spring of 2001, a “normal” year, and 2005, an “anomalous” year, to determine if this hypothesis is supported mechanistically. Ocean conditions were simulated using the Regional Ocean Modeling System (ROMS), which forced an individual-based model parameterized to simulate the population biology of E. pacifica. Poleward transport during winter 2005 advected particles north of Cape Mendocino, away from seabirds and salmon feeding in the Gulf of the Farallons region. Few of the particles that were advected north in 2005 returned to their region of release throughout the model run time (200 days). Moreover, the “condition” of those particles remaining within the domain was poor in 2005, with greater mortality from starvation and a decreased mean particle weight. Our results indicate that both physical processes (anomalous northern advection) and biological processes (greater starvation and less weight per individual) contributed to reduced krill availability to predators in the northern California region during 2005, and that the productivity and survival of seabirds and salmonids is dependent on krill during critical life history stages.

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  • The match-mismatch hypothesis has been applied to cod stocks in the North Sea and salmon and seabirds in California.

    “and has been applied to cod stocks in the North Sea [90] as well as salmon and seabirds in California [82,91].”

    From Anticipated Effects of Climate Change on Coastal Upwelling Ecosystems (2015) · cites this paper as [91]

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Cited by

Sorted by citations

Authors
Dorman, J. G., Powell, T. M., Sydeman, W. J., & Bograd, S. J.
Affiliations
  • University of California, Berkeley (US)
  • Farallon Institute (US)
  • National Oceanic and Atmospheric Administration (US)
ORCID
Venue
Geophysical Research Letters
Publisher
American Geophysical Union (AGU)
Published
2011-02
Volume
38
Issue
4
Pages
n/a-n/a
ISSN
0094-8276 (ISSN-L)
DOI
10.1029/2010gl046245
OpenAlex
W1503788897
Cited by
52
References
2
Citations by year
2024: 2 · 2023: 3 · 2022: 3 · 2021: 2 · 2020: 5 · 2019: 2 · 2018: 2 · 2016: 6 · 2015: 8 · 2014: 4 · 2013: 8 · 2012: 4
FWCI
5.20
Type
journal article
Language
en
Open access
Licence
doi.wiley.com/10.1002/tdm_license_1.1 (tdm, 1673 d)
Locations
Geophysical Research Letters (publishedVersion)
Funders
  • National Science Foundation
  • National Aeronautics and Space Administration
  • California Energy Commission
  • California Ocean Protection Council
  • California Sea Grant, University of California, San Diego
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
  • Physical Sciences › Environmental Science › Ecology › Marine animal studies overview
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
Keywords
Euphausia pacifica, advection, starvation mortality, agent-based modeling, coupled physical-biological model, seabird foraging, poleward transport, particle tracking, predator-prey interactions

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