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Meyer, Bettina; Fuentes, Veronica; Guerra, Citlali; Schmidt, Katrin; Atkinson, Angus; Spahic, Susanne; Cisewski, Boris; Freier, Ulrich; Olariaga, Alejandro; Bathmann, Ulrich (2009): Physiology, growth and development of larval krill ''Euphausia superba'' in autumn and winter in the Lazarev Sea, Antarctica [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.707193, Supplement to: Meyer, B et al. (2009): Physiology, growth and development of larval krill ''Euphausia superba'' in autumn and winter in the Lazarev Sea, Antarctica. Limnology and Oceanography, 54(5), https://doi.org/10.4319/lo.2009.54.5.1595

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Abstract:
The physiological condition of larval Antarctic krill was investigated during austral autumn 2004 and winter 2006 in the Lazarev Sea, to provide better understanding of a critical period of their life cycle. The condition of larvae was quantified in both seasons by determining their body length (BL), dry mass (DM), elemental- and biochemical composition, as well as stomach content analysis, and rates of metabolism and growth. Overall the larvae in autumn were in better condition under the ice than in open water, and for those under the ice there was a decrease in condition from autumn to winter. Thus growth rates of furcilia larvae in open water in autumn were similar to winter values under the ice (mean 0.008 mm/d), whereas autumn, under ice values were higher: 0.015 mm/d. Equivalent larval stages had up to 30% lower BL and 70% lower DM in winter compared to autumn, with mean oxygen consumption 44% lower (0.54 µl O2 DM/h). However, their ammonium excretion rates doubled (from 0.03-0.06 µg NH4 DM/h) so their mean O:N ratio was 46 in autumn and 15 in winter. Thus differing metabolic substrates were used between autumn and winter, suggesting a flexible overwintering strategy, as suggested for adults. The larvae were eating small copepods (Oithona spp.) and/or protozoans as well as autotrophic food under the ice. However, pelagic Chlorophyll a (Chl a) was a good predictor for growth in both seasons. The physics (current speed/ice topography) probably has a critical part to play in whether larval krill can exploit the food that may be associated with sea ice or be advected away from such suitable feeding habitat.
Project(s):
Biological Oceanography @ AWI (AWI_BioOce)
Coverage:
Median Latitude: -66.358543 * Median Longitude: -0.843554 * South-bound Latitude: -69.621400 * West-bound Longitude: -5.999600 * North-bound Latitude: -63.452600 * East-bound Longitude: 2.955400
Date/Time Start: 2004-04-07T22:04:00 * Date/Time End: 2006-08-02T15:00:00
Event(s):
PS65/609-4 * Latitude: -65.035200 * Longitude: -5.988500 * Date/Time: 2004-04-07T22:04:00 * Elevation: -5116.0 m * Campaign: ANT-XXI/4 (PS65) * Basis: Polarstern * Method/Device: Bongo net (BONGO) * Comment: open water
PS65/612-3 * Latitude: -66.027800 * Longitude: -5.999600 * Date/Time: 2004-04-08T08:11:00 * Elevation: -4934.0 m * Campaign: ANT-XXI/4 (PS65) * Basis: Polarstern * Method/Device: Bongo net (BONGO) * Comment: open water
PS65/615-4 * Latitude: -67.052400 * Longitude: -5.965700 * Date/Time: 2004-04-08T20:32:00 * Elevation: -4858.0 m * Campaign: ANT-XXI/4 (PS65) * Basis: Polarstern * Method/Device: Bongo net (BONGO) * Comment: open water
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
33 datasets

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Datasets listed in this publication series

  1. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length and dry mass of Euphausia superba, larvae, calyptopis II. https://doi.org/10.1594/PANGAEA.682724
  2. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba larvae, calyptopis III. https://doi.org/10.1594/PANGAEA.682699
  3. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia I. https://doi.org/10.1594/PANGAEA.682727
  4. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia II. https://doi.org/10.1594/PANGAEA.682726
  5. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia III. https://doi.org/10.1594/PANGAEA.682725
  6. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Metabolic rates of Euphasia superba larvae. https://doi.org/10.1594/PANGAEA.682698
  7. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS65/609-4. https://doi.org/10.1594/PANGAEA.682690
  8. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS65/612-3. https://doi.org/10.1594/PANGAEA.682692
  9. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS65/615-4. https://doi.org/10.1594/PANGAEA.682693
  10. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS65/628-7. https://doi.org/10.1594/PANGAEA.682694
  11. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS65/661-5. https://doi.org/10.1594/PANGAEA.682695
  12. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS65/665-5. https://doi.org/10.1594/PANGAEA.682696
  13. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length and dry mass of Euphausia superba, larvae, calyptopis III, at staion PS69/478-3. https://doi.org/10.1594/PANGAEA.683837
  14. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length and dry mass of Euphausia superba, larvae, furcilia I, at station PS69/478-3. https://doi.org/10.1594/PANGAEA.683841
  15. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length and dry mass of Euphausia superba, larvae, furcilia II, at station PS69/478-3. https://doi.org/10.1594/PANGAEA.683839
  16. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length and dry mass of Euphausia superba, larvae, furcilia III, at station PS69/478-3. https://doi.org/10.1594/PANGAEA.683838
  17. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length and dry mass of Euphausia superba, larvae, furcilia IV, at station PS69/478-3. https://doi.org/10.1594/PANGAEA.683840
  18. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length and dry mass of Euphausia superba, larvae, furcilia V, at station PS69/478-3. https://doi.org/10.1594/PANGAEA.683843
  19. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length and dry mass of Euphausia superba, larvae, furcilia VI, at station PS69/478-3. https://doi.org/10.1594/PANGAEA.683842
  20. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS69/478-3. https://doi.org/10.1594/PANGAEA.683853
  21. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia IV, at station PS69/498. https://doi.org/10.1594/PANGAEA.683844
  22. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia V, at station PS69/498. https://doi.org/10.1594/PANGAEA.683846
  23. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia VI, at station PS69/498. https://doi.org/10.1594/PANGAEA.683845
  24. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS69/498-A. https://doi.org/10.1594/PANGAEA.683854
  25. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Metabolic rates of Euphasia superba larvae at station PS69/498-A. https://doi.org/10.1594/PANGAEA.683850
  26. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS69/498-B. https://doi.org/10.1594/PANGAEA.683855
  27. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Metabolic rates of Euphasia superba larvae at station PS69/498-B. https://doi.org/10.1594/PANGAEA.683851
  28. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS69/498-C. https://doi.org/10.1594/PANGAEA.683856
  29. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia IV, at station PS69/515. https://doi.org/10.1594/PANGAEA.683847
  30. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia V, at station PS69/515. https://doi.org/10.1594/PANGAEA.683849
  31. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Body length, dry mass, carbon, nitrogen, lipid, and protein of Euphausia superba, larvae, furcilia VI, at station PS69/515. https://doi.org/10.1594/PANGAEA.683848
  32. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Growth rates of Euphausia superba at station PS69/515-A. https://doi.org/10.1594/PANGAEA.683857
  33. Meyer, B; Fuentes, V; Guerra, C et al. (2009): Metabolic rates of Euphasia superba larvae at station PS69/515-A. https://doi.org/10.1594/PANGAEA.683852