Skip to data content Skip to data search
Corporate computing and storage systems supporting the EOL data archive will be powered off for maintenance and unavailable 26 July to 02 August 2021. The EOL data archive website should remain up and available however some connectivity outages may occur. Most data orders and downloads will not be available. Please try again after 03 August 2021.

TN249-10 - Lipofuscin and Euphausiid Aging

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)
Subscribe Subscribe to receive email when new or updated data is available.
Related projects
Spatial Type unknown
Frequency weekly
Language English
ISO Topic Categories
  • biota
  • oceans
Categories
Platforms
Instruments
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

Example citation following ESIP guidelines:

Harvey, H., Pleuthner, R. 2010. TN249-10 - Lipofuscin and Euphausiid Aging. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D69P2ZPX. Accessed 01 Aug 2021.

Today's date is shown: please replace with the date of your most recent access.

Additional citation styles

The citation text below is from the DataCite Content Resolver service and may take a few seconds to load. The styles and locales are obtained from CrossCite, which also provides a citation formatter. See ReFindit for another alternative. Formatting is not perfect: please verify and edit before use. Today's date is shown: please replace with the date of your most recent access.

Style: Locale:

Ancillary information

Metadata download

Note that your browser may not display the above metadata links, but automatically save them as files in a folder such as "Downloads"