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
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Spatial Type | unknown |
Frequency | weekly |
Language | English |
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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
- author: H. Rodger Harvey <rharvey@odu.edu>
- author: Rachel Pleuthner <pleuthne@cbl.umces.edu>
- principalInvestigator: H. Rodger Harvey <rharvey@odu.edu>
- originator: Rachel Pleuthner <pleuthne@cbl.umces.edu>
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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