CarbonBridge January 2014: Mesozooplankton species composition and abundance


Mesozooplankton was sampled vertically with a Multinet (180 µm mesh size, 0.25 m**2 mouth opening, Hydro-Bios, Kiel, Germany). Hauling speed was 0.5 m/s. Samples were preserved in a solution of 80% seawater and 20% fixation agent (75% formaldehyde buffered with hexamine, 25% anti-bactericide propandiol), resulting in a final concentration of 4% formaline. From the fixed Multinet samples zooplankton was counted and identified to species (most copepods) or to species, genus or family level (other groups). Conspicuous, large zooplankton (> 5 mm, chaetognaths > 10 mm) was identified and enumerated from the entire sample. From the rest of the sample, at least 500 individuals from a minimum of three sub samples (2-5 ml, automatic pipette) were identified, staged and counted. This procedure allows for the analysis of abundance of common species and taxa with 10% precision and at 95% confidence level (Postel et al., 2000, doi:10.1016/B978-012327645-2/50005-0). Copepods of the genus Calanus were identified to species based on their size (Kwasniewski et al., 2003, doi:10.1093/plankt/25.1.1). Specimens other than copepods were measured and sorted into different size categories (< 5, 5-10, and 10-20 mm).

Metadata Access
Creator Halvorsen, Elisabeth; Kwasniewski, Slawomir
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Contributor The Arctic University of Norway
Publication Year 2017
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 7801 data points
Discipline Earth System Research
Spatial Coverage (4.371W, 79.001S, 20.003E, 81.772N); Arctic Ocean; North Greenland Sea
Temporal Coverage Begin 2014-01-10T03:40:00Z
Temporal Coverage End 2014-01-13T11:45:00Z