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Earth Observing Laboratory
Field Data Archive

TN249-10 - Lipofuscin and Euphausiid Aging

Project:

Summary

Age determination in crustaceans relies on quantification of a fluorescent age pigment, lipofuscin, that accumulates in eye stalks of krill over time. Lipofuscin includes a mixture of protein oxidation products formed in neural tissues. The extracted products are quantified using a fluorescence detector. The concentration of lipofuscin is normalized to the protein content from the same tissues. The ratio of lipofuscin to protein concentration is the Lipofuscin Index and is calculated for each individual organism. In order for the index to reflect chronological age, a calibration is required using euphausiids of known age. A comparison of the calculated ages to the specific lengths for each krill provides the ages for those krill analyzed during each cruise. These data were collected aboard the UNOLS R/V Thompson ship.

Data were collected during the Bering Sea Ecosystem Study-Bering Sea Integrated Ecosystem Research Program (BEST-BSIERP). BEST-BSIERP together are the Bering Sea project. 

Data access

  • ORDER data for delivery by FTP

Additional information

Identifier
Versions
  • 1.0 (2010-07-20)
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Related projects
Spatial Type unknown
Frequency weekly
Language English
ISO Topic Categories
  • biota
  • oceans
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Events
GCMD Science Keywords Expand keywords
Documentation
Related links

Temporal coverage

Begin datetime 2010-05-14 15:50:00
End datetime 2010-06-09 15:50:00

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 62.188, Minimum (South) Latitude: 55.434
Minimum (West) Longitude: -178.899, Maximum (East) Longitude: -164.504

Primary point of contact information

Rachel Pleuthner <pleuthne@cbl.umces.edu>

Additional contact information

Citation

Harvey, H., Pleuthner, R., Pleuthner, R. 2010. TN249-10 - Lipofuscin and Euphausiid Aging. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D69P2ZPX. Accessed 05 Dec 2024.

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NSF

This material is based upon work supported by the NSF National Center for Atmospheric Research, a major facility sponsored by the U.S. National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.