Living coccolithophore abundance from the Ebro Delta coastal area during MERS-BLUEISLAND cruise (November 2019)


The present dataset contains coccolithophores abundances (coccospheres/L). The samples were collected between Barcelona and the Ebro Delta (Western Mediterranean), during the MERS-BLUEISLAND cruise in November 2019, with rosette Niskin bottles investigating the photic zone (0-200 m). Quantitative analyses were performed using a polarized light microscope at 1000× magnification. Abundances were determined by counting at least 300 coccospheres per sample when possible. Coccosphere density and species relative abundances were calculated using the following formula: CD = (A × N)/(a × V) where A is the filtration area (mm2), N is the total number of coccospheres, a is the scanned area (mm2) and V is the volume of the filtered water (L). The Upper Photic Zone (UPZ) group includes Rhabdosphaera clavigera, Syracosphaera pulchra, Coronosphaera mediterranea, Umbellosphaera tenuis, Umbellosphaera spp., Discosphaera tubifera, Umbilicosphaera sibogae, Syracosphaera anthos, while Florisphaera profunda and Gladiolithus flabellatus were grouped as Lower Photic Zone (LPZ) taxa. The diversity of the total assemblage was estimated according to Harper (1999, doi:10.1017/S0016756800334410).

Related Identifier References
Metadata Access
Creator Addante, Marina ORCID logo; Grelaud, Michaël ORCID logo; Langer, Gerald ORCID logo; Maiorano, Patrizia ORCID logo; Bonomo, Sergio (ORCID: 0000-0001-7077-494X); Álvarez, Marta ORCID logo; Johnson, Roberta ORCID logo; Ziveri, Patrizia ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Ministerio de Ciencia e Innovación Crossref Funder ID PID2020-113526RB-100 Global biodiversity of marine planktonic calcifiers (BIOCAL); Universitat Politècnica de Catalunya Crossref Funder ID MERS, 2014 SGR – 1356 Generalitat de Catalunya
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 2926 data points
Discipline Earth System Research
Spatial Coverage (0.796W, 40.074S, 2.382E, 41.112N); Western Mediterranean Sea
Temporal Coverage Begin 2019-11-24T12:44:52Z
Temporal Coverage End 2019-11-27T22:04:30Z