NDLI: Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula

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Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula

Content Provider	Scilit
Author	Lynch, Heather J. Ratcliffe, Norman Passmore, Jennifer Foster, Emma Trathan, Philip N.
Copyright Year	2012
Description	Krill consumption by natural predators represents a critical link between surveys and models of standing krill biomass and the design of a sustainable krill fishery for the Scotia Sea. Antarctic krill (Euphausia superba) is a significant component of diet for penguins breeding in this region and, consequently, uncertainties regarding penguin population abundances contribute to uncertainties in krill predation estimates. We use a comprehensive database of Antarctic penguin abundances to identify 14 breeding colonies that contribute most significantly to uncertainty regarding the total number of pygoscelid penguins breeding in this region. We find that a high quality survey of Zavodovski Island alone would decrease uncertainty in total population by 24.8%, whereas high quality surveys of all 14 “high-influence” locations would decrease uncertainty by almost 72%. Updated population estimates at these sites should be considered top priority for future fieldwork in the region. Our results are based on a robust quantitative method for assessing data priorities in estimating krill consumption that is easily extended to other groups of krill predators.
Related Links	http://nora.nerc.ac.uk/id/eprint/500106/1/displayFulltext.pdf https://core.ac.uk/download/pdf/9703275.pdf https://www.cambridge.org/core/services/aop-cambridge-core/content/view/F06BE5D93CB5C769EF19E716460B9D8A/S0954102012000600a.pdf/div-class-title-sensitivity-analysis-identifies-high-influence-sites-for-estimates-of-penguin-krill-consumption-on-the-antarctic-peninsula-div.pdf
Ending Page	23
Page Count	5
Starting Page	19
ISSN	09541020
e-ISSN	13652079
DOI	10.1017/s0954102012000600
Journal	Antarctic Science
Issue Number	1
Volume Number	25
Language	English
Publisher	Cambridge University Press (CUP)
Publisher Date	2013-02-01
Access Restriction	Open
Subject Keyword	Antarctic Science Fisheries Sciences Marine and Freshwater Biology Adélie Penguin Chinstrap Penguin Krill Management Penguin Population Estimates Zavodovski Island
Content Type	Text
Resource Type	Article
Subject	Geology Ecology, Evolution, Behavior and Systematics Oceanography

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