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opencc-by-4.0Jan 2024View details →

Cellular morphological trait dataset for extant coccolithophores from the Atlantic Ocean

The Cellular morphological trait dataset for extant coccolithophores from the Atlantic Ocean is a reference dataset for morphological traits from extant coccolithophores (calcifying marine plankton group), including cell-specific data for coccosphere and cell size, coccolith size, number of coccoliths per cell, and morphometric-based cellular calcite estimates. The dataset also includes ancillary information about the sample and taxonomic identification. The dataset contains observations from 1074 individual coccolithophore cells representing 61 species from 25 genera. Samples were obtained during the Atlantic Meridional Transect (AMT) 14 cruise that sailed between the Faulkland Islands and the UK in 2004. Measurements were taken from scanning electron microscopy (SEM) images, which are archived on Zenodo at doi: 10.5281/zenodo.10571819. A description of the parameters included in the dataset can be found in the file "2. Descriptor- Cellular morphological trait dataset for extant coccolithophores from the Atlantic Ocean". Three additional supporting files are included with this dataset: <ul> <li>"3. Coccolith size, coccolith calcite and cellular calcite in collapsed Umbellosphaera coccospheres" contains measurements of coccolith size (CL) and associated coccolith calcite (PIC) for 20 collapsed Umbellosphaera coccospheres. This data was used to derive an adjustment to coccolith length applied to coccolith length measured on intact Umbellosphaera coccosphere measurements to account for the wide variety of coccolith sizes present on individual coccospheres.</li> <li>"4. Sensitivity of cellular calcite contents to uncertainties in coccolith size, number of coccoliths per cell and shape factors" contains re-calculations of cellular calcite data using uncertainties of ±5-30% on coccolith size (CL) and species-specific shape factor (Ks) and variations of ±2 coccoliths and ±5 coccoliths for the number of coccoliths per cell (CN) for coccospheres of Gephyrocapsa mullerae, Umbilicosphaera hulburtiana, Syracosphaera spp., and Discosphaera tubifera.</li> <li>"5. Partial coccolith length and coccolith length measurements" contains measurements used to calculate the uncertainty in coccolith length introduced when partial coccolith length is measured.</li> </ul> Extensive description of the methodology related to this dataset can be found in the associated manuscript: Rosie M. Sheward, Alex J. Poulton, Jeremy R. Young, Joost de Vries, Fanny M. Monteiro, Jens O. Herrle. “Cellular morphological trait dataset for extant coccolithophores from the Atlantic Ocean” in review with Scientific Data. Correspondence should be directed to: Rosie M. Sheward, sheward@em.uni-frankfurt.de

opencc-by-4.0Jun 2024View details →

Isotopic and physiologic data for coccolithophores cultured in various CO2 and pH conditions

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opencc-by-4.0Jun 2024View details →

Proteomics of 3 coccolithophore species in 3 pH conditions

The .xlsx file contains significant protein-groups of each species, along with their LFQ intensity, Log2 fold changes, Genes, protein IDs, associated GO terms (if applicable), and protein names that were obtained through the ID mapping tool in UniProt. This data is associated with the mass spectrometry proteomics data that has been deposited to the ProteomeXchange Consortium (http://proteomecentral.proteomexchange.org) via the PRIDE partner repository (www.ebi.ac.uk/pride/, Perez-Riverol et al., 2022) with the dataset identifier PXD051218.

FIGURE 15 in Coccolithophores in the algal flora from South Urals (Russia) with the description of a new Hymenomonas species

FIGURE 15. Hymenomonas uralensis sp. nov. (SEM). The arrows mark the preserved areas of the organic basal plate. Scale bars: 2 µm.

FIGURES 8–14 in Coccolithophores in the algal flora from South Urals (Russia) with the description of a new Hymenomonas species

FIGURES 8–14. Species of Chrysotila from the reservoirs of the steppe zone of the South Urals (SEM). Figs. 8, 9: Chrysotila carterae. Figs. 10–14: C. roscoffensis. The arrows mark the different types of ornamentation of the distal shield of the placoliths belonging to the single cell. Scale bars: 8–10, 12–14–2 µm, 11–5 µm.

FIGURES 2–7 in Coccolithophores in the algal flora from South Urals (Russia) with the description of a new Hymenomonas species

FIGURES 2–7. Coccolithophores from the reservoirs of the steppe zone of the South Urals (SEM). Figs. 2–4: Hymenomonas roseola. Figs. 5–7: Jomonlithus littoralis. The arrows mark the preserved areas of the organic basal plate. Scale bars: 2, 6–5 µm, 3, 4, 7–2 µm, 5–1 µm.

FIGURE 1 in Coccolithophores in the algal flora from South Urals (Russia) with the description of a new Hymenomonas species

FIGURE 1. Schematic map of the study area and sampling sites: 1, 2—Ural River, 3—Ushkotinsky Reservoir, 4, 5—Zhetykol Lake, 6—Aschisaysky Рond.

publicAug 2021View details →

dryad32/100

Data from: Vertical biogeography and realized niche traits of living coccolithophore community in the eastern Indian Ocean

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opencc-by-4.0Nov 2020View details →

Scanning electron microscopy image dataset -- Abundances and morphotypes of the coccolithophore Emiliania huxleyi in southern Patagonian fjords and channels

Data set 1: E.huxleyi_morphotypes_Patagonia.zip Scanning electron microscopy images of Emiliania huxleyi cells found inhabit the southern Patagonia fjords during the late-spring 2015 and early-spring 2017.   Data set 2: E.huxleyi_abundances_Patagonia.zip Scanning electron microscope images of filters of plankton samples taken in 2015 and 2017 throughout southern Patagonia fjords. The "m" in sample name refer to the depth from which the sample was obtained.  Tables are provided to associate Emiliania huxleyi morphotypes' counts and taxonomic identifications to environmental variables from the samples for which data was used in statistical analysis.

opencc-by-4.0Jan 2024View details →

Atlantic Meridional Transect (AMT) 14: scanning electron microscopy images of the coccolithophore community

Legacy scanning electron microscopy (SEM) images of plankton samples that were taken during Atlantic Meridional Transect cruise 14 (AMT 14), which sailed between the Faulkland Islands and the UK in 2004 (for more information see https://www.amt-uk.org/Cruises/AMT14 and the link to the cruise report therein). The SEM methodology applied to generate these images is described in Poulton et al. (2017) Coccolithophore ecology in the tropical and subtropical Atlantic Ocean: New perspectives from the Atlantic meridional transect (AMT) programme. Prog. Oceanogr. 158, 150–170 and follows Charalampopoulou et al. (2011) Irradiance and pH affect coccolithophore community composition on a transect between the North Sea and the Arctic Ocean. Mar. Ecol. Prog. Ser. 431, 25–43.  The 16 samples currently in this entry are from nine CTD stations of AMT14. There is a unique, compressed (.zip) file of SEM images for each sample (CTD station and water depth) with the following naming scheme:  AMT14_CTD#_A_WD, where CTD# denotes CTD number (e.g. CTD6), A denotes percentage of surface irradience level (e.g. 55 is 55% of surface irradience), and WD is water depth (m) of sample.    Each compressed sample folder contains ca. 600-700 SEM images in TIF file format. The name of each image relates to the date (day_month_image number) the image was taken on.    Correspondence should be directed to: Alex J. Poulton, Heriot-Watt University (a.poulton@hw.ac.uk) Please cite this compilation of SEM images in full (including doi) and acknowledge the Atlantic Meridional Transect programme if you are using these images: "AMT 14 was supported by the UK Natural Environment Research Council (NERC) through the Atlantic Meridional Transect consortium (NER/O/S/2001/00680)"   Associated publications: Poulton, A. J., Holligan, P. M., Charalampopoulou, A. & Adey, T. R. Coccolithophore ecology in the tropical and subtropical Atlantic Ocean: New perspectives from the Atlantic meridional transect (AMT) programme. Prog. Oceanogr. 158, 150–170 (2017). Sheward, R. M., Poulton, A.J., Young, J.R., de Vries, J., Monteiro, F.M. & Herrle, J.O. Cellular morphological trait dataset for extant coccolithophores from the Atlantic Ocean. Submitted to Scientific Data in Janurary 2024.

opencc-by-4.0Feb 2024View details →

Growth and morphological measurements of the coccolithophore Emiliania huxleyi under three salinity conditions

Three datasets presenting results from laboratory culture experiments with the coccolithophore Emiliania huxleyi (Norwegian coastal strain PLYB11 and Mediterranean Sea strain RCC1232) grown for a duration of 156 h under salinity 25 (hyposaline/low salinity), salinity 35 (control) and salinity 45 (hypersaline/high salinity) conditions. Cell concentrations and cell size (mean and standard deviation of triplicate counts) were measured using a CASY automated cell counter. Morphometric measurements of coccolith length, coccosphere size and number of coccoliths per cell were measured on scanning electron microscopy images.  Supplementary Fig. S1 shows scanning electron microscopy (SEM) images of E. huxleyi coccosphere from strains PLYB11 and RCC1232 under salinity 25, 35, 45 conditions during the early (first 48 h), middle (76-100 h), and end (last 48 h) of each 156-h experiment. A full caption is included within the image file. These datasets are associated with the following manuscript: Sheward, R. M., Gebühr, C., Bollmann, J. and Herrle, J. O. Short-term response of Emiliania huxleyi growth and morphology to abrupt salinity stress. EGUsphere (preprint), https://doi.org/10.5194/egusphere-2024-349.   Correspondence to: Rosie M. Sheward (sheward@em.uni-frankfurt.de)