Heyen, Simone; Töpker, Verena; Kopke, Bernd; Cakić, Nevenka; Hüppe, Lukas; Meyer, Bettina; Wilkes, Heinz: Free amino acids in the digestive system of Antarctic krill, Euphausia superba, sampled in January, March and May [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973181 (dataset in review), In: Heyen, S et al.: Coenzyme A thioester, free and protein-bound amino acid, B vitamin and respiratory quinone compositions in the digestive system of Antarctic krill, Euphausia superba, sampled in January, March and May [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973179 (dataset in review)
Abstract:
Antarctic krill, Euphausia superba, is a key species in the Southern Ocean with an immense biomass. Ongoing climate change affects their food availability, habitat and survivability. Therefore, markers documenting changes in this species are important to monitor and discover future issues, also because krill-derived products are manufactured for human consumption. Several studies have focused on the composition of krill-derived lipids. However, they may be a potential in other metabolites to serve as tracers identifying shifts in the Antarctic environment. Krill was caught with a continuous krill pumping system in May of 2021 in the Bransfield Strait and in January and March of 2022 at the South Orkney Islands aboard the commercial krill fishing vessel Antarctic Endurance. The stomach, digestive gland and hind gut were dissected and analysed individually. Samples were initially extracted by bead-beating, with individual subsequent extraction steps adjusted for the different metabolic classes. Free amino acids from the digestive system of Antarctic krill, Euphausia superba, were measured in derivatised bead-beater extracts. Measurement of methoxycarbonyl esters was performed with gas chromatography - mass spectrometry. Identification of amino acids was based on standards.
Keyword(s):
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 161B0871A: BioProMare: KiGuMi
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 161B0871C: BioProMare: KiGuMi - Biotechnologisches Potential des Darm-Mikrobioms des Antarktischen Krills, Teilprojekt
Coverage:
Median Latitude: -61.331618 * Median Longitude: -51.814505 * South-bound Latitude: -62.580780 * West-bound Longitude: -57.439960 * North-bound Latitude: -60.100880 * East-bound Longitude: -46.178760
Date/Time Start: 2021-05-13T15:20:00 * Date/Time End: 2022-03-08T14:20:00
Minimum DEPTH, water: 62.5 m * Maximum DEPTH, water: 138.0 m
Event(s):
ANT_END_KiGuMi_1 * Latitude: -62.496970 * Longitude: -57.290300 * Date/Time: 2021-05-13T15:20:00 * Elevation: -183.9 m * Location: Bransfield Strait * Campaign: ANT_END_LEG2 * Basis: Antarctic Endurance * Method/Device: Continous krill pumping system * Comment: cloudy, ice bergs near by, humpback whales around
ANT_END_KiGuMi_5 * Latitude: -62.580780 * Longitude: -57.439960 * Date/Time: 2021-05-31T09:30:00 * Elevation: -151.2 m * Location: Bransfield Strait * Campaign: ANT_END_LEG2 * Basis: Antarctic Endurance * Method/Device: Continous krill pumping system * Comment: some clouds, ice bergs around, sea ice starts forming (slush and pancacke ice in patches)
ANT_END_KiGuMi_17 * Latitude: -60.100880 * Longitude: -46.178760 * Date/Time: 2022-01-19T16:30:00 * Elevation: -1039.0 m * Location: South Orkney Islands * Campaign: ANT_END_LEG_3 * Basis: Antarctic Endurance * Method/Device: Continous krill pumping system
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Meyer, Bettina | |||
| 2 | Latitude of event | Latitude | Meyer, Bettina | |||
| 3 | Longitude of event | Longitude | Meyer, Bettina | |||
| 4 | Date/Time of event | Date/Time | Meyer, Bettina | |||
| 5 | Elevation of event | Elevation | m | Meyer, Bettina | ||
| 6 | Location of event | Location | Meyer, Bettina | |||
| 7 | Sample ID | Sample ID | Heyen, Simone | |||
| 8 | DEPTH, water | Depth water | m | Meyer, Bettina | Geocode | |
| 9 | Krill, length | Krill l | mm | Meyer, Bettina | ||
| 10 | Sex | Sex | Meyer, Bettina | |||
| 11 | Organ | Organ | Meyer, Bettina | |||
| 12 | Alanine | Ala | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 13 | Arginine | Arg | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 14 | Asparagine | Asn | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 15 | Aspartic acid | Asp | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 16 | Cysteine | Cys | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 17 | Glutamic acid | Glu | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 18 | Glycine | Gly | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 19 | Isoleucine | Ile | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 20 | Leucine | Leu | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 21 | Methionine | Met | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 22 | Phenylalanine | Phe | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 23 | Proline | Pro | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 24 | Serine | Ser | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 25 | Threonine | Thr | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 26 | Valine | Val | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 27 | beta-Alanine | b-ala | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) | |
| 28 | Sarcosine | Sarcosine | % | Heyen, Simone | Gas chromatograph-mass spectrometer (GC-MS) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1716 data points