KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: phytoplankton pigments and composition


Pigment concentration and pigment-based phytoplankton community composition data from the mesocosm experiment conducted in the Canary Islands in autumn 2019. Depth-integrated (0-2.5m) water samples were taken in 2-days intervals over the course of 33 days. One set of filters (one filter per sampling day and mesocosm) was analysed fluorometrically for Chl a. Another set of filters was analysed for a range of photosynthetic pigments using reverse-phase high-performance liquid chromatography (HPLC). Based on pigment concentrations, phytoplankton community composition was approximated using the CHEMTAX software with the original pigment ratios from Mackey et al (1996, doi:10.3354/meps144265). The input included Chl a, b, c2, and c3, peridinin, 19'-butanoyloxyfucoxanthin, fucoxanthin, neoxanthin, prasinoxanthin, violaxanthin, 19'-hexanoyloxyfucoxanthin, alloxanthin, and zeaxanthin. Divinyl Chl a was instead fully associated with Prochlorophyceae. The presence of the main phytoplankton groups is expressed in Chl a equivalents and their contribution to the phytoplankton community as percentage to total Chl a. The upwelling treatment started on day 6. Methodological details in Goldenberg et al. (doi:10.3389/fmars.2022.1015188).

The values marked with ? (HPLC day 19 mesocosm 1) must be errornous. Exclude from analysis.

DOI https://doi.org/10.1594/PANGAEA.954424
Related Identifier https://doi.org/10.3389/fmars.2022.1015188
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.954424
Creator Goldenberg, Silvan Urs ; Ortiz Cortes, Joaquin
Publisher PANGAEA
Publication Year 2023
Funding Reference Federal Ministry of Education and Research, 03F0897A; Horizon 2020, 695094; Horizon 2020, 731065
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 5984 data points
Discipline Earth System Research
Spatial Coverage (-15.369 LON, 27.990 LAT); Canarias Sea
Temporal Coverage Begin 2019-09-07T00:00:00Z
Temporal Coverage End 2019-10-09T00:00:00Z