KN195-10 Lipofuscin and Euphausiid Aging

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 organisms. 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 United States Coast Guard Icebreaker Healy. 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.

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Temporal Range

  • Begin:  2009-06-19T00:00:00Z
    End:  2009-07-11T23:59:00Z

Keywords

Resource Type dataset
Temporal Range Begin 2009-06-19T00:00:00Z
Temporal Range End 2009-07-11T23:59:00Z
Temporal Resolution N/A
Bounding Box North Lat 59.90120
Bounding Box South Lat 55.28120
Bounding Box West Long -177.58200
Bounding Box East Long -166.22775
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format XLS: Excel (application/vnd.ms-excel)
Standardized Resource Format Excel
Asset Size 1 MB
Legal Constraints

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Access Constraints none
Software Implementation Language N/A

Resource Support Name EOL Data Support
Resource Support Email datahelp@eol.ucar.edu
Resource Support Organization N/A
Distributor N/A
Metadata Contact Name EOL Data Support
Metadata Contact Email datahelp@eol.ucar.edu
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Author H. Rodger Harvey
Rachel Pleuthner
Publisher N/A
Publication Date 2010-01-13T10:56:20
Digital Object Identifier (DOI) https://doi.org/10.5065/D6RX993J
Alternate Identifier 102.157
Resource Version 1.0
Topic Category biota
oceans
Progress completed
Metadata Date 2025-10-07T21:43:32Z
Metadata Record Identifier edu.ucar.eol::102.157
Metadata Language eng; USA
Suggested Citation H. Rodger Harvey, Rachel Pleuthner. (2010). KN195-10 Lipofuscin and Euphausiid Aging. 1.0. https://doi.org/10.5065/D6RX993J. Accessed 28 October 2025.

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