IEDA
Dataset Information
Carbon and nitrogen stable isotope values of Antarctic Krill from the South Shetland Islands and the northern Antarctic Peninsula 2007 and 2009
Data DOI:
https://doi.org/10.15784/601210
Cite as
Polito, M. (2019) "Carbon and nitrogen stable isotope values of Antarctic Krill from the South Shetland Islands and the northern Antarctic Peninsula 2007 and 2009" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601210.
AMD - DIF Record(s)
Abstract
This data set contains measurements of carbon (δ13C) and nitrogen (δ15N) stable isotope values of whole-body Antarctic krill (Euphausia superba) collected from trawl surveys of waters surrounding the South Shetland Islands and the northern Antarctic Peninsula during the 2006-07 and 2008-90 Austral summers. Stable isotope analyses were conducted using an elemental analyzer coupled to a continuous flow stable isotope ratio mass spectrometer. Individual krill were lipid-extracted prior to analyses. The data set also includes latitude, longitude, month, and year of sample collection, standard length of the krill to the nearest mm, age class, sex, and carbon to nitrogen ratios. Details of the data set and all relevant methods are provided in Polito et al., 2013 and Polito et al., 2019.
Creator(s):
Date Created:
2019-09-13
Repository:
USAP-DC (current)
Spatial Extent(s)
West: -63, East: -54, South: -64, North: -60
Temporal Extent(s)
Start: 2007-01-01 - End: 2009-01-31
Version:
1
References
  1. Polito, M. J., Trivelpiece, W. Z., Reiss, C. S., Trivelpiece, S. G., Hinke, J. T., Patterson, W. P., & Emslie, S. D. (2019). Intraspecific variation in a dominant prey species can bias marine predator dietary estimates derived from stable isotope analysis. Limnology and Oceanography: Methods, 17(4), 292-303. (doi:10.1002/lom3.10314)
  2. Polito, M. J., Reiss, C. S., Trivelpiece, W. Z., Patterson, W. P., and Emslie, S. D. (2013). Stable isotopes identify an ontogenetic niche expansion in Antarctic krill (Euphausia superba) from the South Shetland Islands, Antarctica. Marine biology, 160(6), 1311-1323. (doi:10.1007/s00227-013-2182-z)
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Polito_2019_Krill_SIA_Data.xlsx

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