HLY-09-02 Lipofuscin and Euphausiid Aging https://data.eol.ucar.edu/dataset/102.156 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 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. Identifiers * Local archive identifier: 102.156 * doi:10.5065/D6N58JDK https://doi.org/10.5065/D6N58JDK Versions 1.0 Citation Harvey, H., Pleuthner, R., Pleuthner, R. 2010. HLY-09-02 Lipofuscin and Euphausiid Aging. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6N58JDK Accessed 29 Mar 2024. Additional citation styles can be generated by entering the DOI at CrossCite (https://citation.crosscite.org/). Acknowledgement In addition to the citation reference and any other acknowledgements, please acknowledge NCAR/EOL in your publications with text such as: Data provided by NCAR/EOL under the sponsorship of the National Science Foundation. https://data.eol.ucar.edu/ Related projects * BEST: Bering Ecosystem Study https://data.eol.ucar.edu/project/BEST Additional information * Spatial Type: unknown * Frequency: no set schedule * Language: English ISO Topic Categories * biota * oceans Categories * Arctic * Biology * Chemistry Platforms * Ships * USCGC Healy - HLY Instruments * Spectrometers Events * HLY-09-02 GCMD Science Keywords * EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON Related links * homepage: BEST Project Homepage https://www.eol.ucar.edu/field_projects/best * info: BEST Catalog https://catalog.eol.ucar.edu/best/ * info: BEST Data Policy https://www.eol.ucar.edu/content/data-policy-1 Temporal coverage * Begin datetime: 2009-04-05 00:00:00 * End datetime: 2009-04-30 23:59:00 Spatial coverage * Maximum (North) Latitude: 59.9093 * Minimum (South) Latitude: 56.0364 * Minimum (West) Longitude: -179.4126 * Maximum (East) Longitude: -167.7978 Primary contact information * pointOfContact: H. Rodger Harvey https://data.eol.ucar.edu/contact/show/402 Additional contact information * author: H. Rodger Harvey https://data.eol.ucar.edu/contact/show/402 * principalInvestigator: H. Rodger Harvey https://data.eol.ucar.edu/contact/show/402 * author: Rachel Pleuthner https://data.eol.ucar.edu/contact/show/831 * originator: Rachel Pleuthner https://data.eol.ucar.edu/contact/show/831 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/102.156?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/102.156?format=isotc211