Keuter, Sabine; Frada, Miguel J; Koplovitz, Gil; Klaiman, Sivan: Measurements of coccospheres and coccoliths of the species Gephyrocapsa huxleyi and G. ericsonii in natural populations in the Gulf of Aqaba and the Eastern Mediterranean Sea [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.983004 (dataset in review)
Abstract:
To disentangle the effect of macronutrient availability on cell-size in native populations of coccolithophores we surveyed the seasonality of the prevalent coccolithophores in the northern Red Sea and the Eastern Mediterranean and performed a series of incubations assays. The size variations of coccospheres and coccoliths of the species Gephyrocapsa huxleyi and G. ericsonii native populations from samples of monitoring stations in the Gulf of Aqaba (Station A, 29.475 °N, 34.940 °E) and in the Eastern Mediterranean Sea (Themo2, 32.820 °N, 34.380 °E) were analysed using scanning electron microscopy and the relation to specific macronutrient availability was examined.
Supplement to:
Keuter, Sabine; Koplovitz, Gil; Ben Yehouda, Mayaan; Klaiman, Sivan; Frada, Miguel J (in prep.): Phosphate limitation drives the seasonal increase in coccolithophore cell size in marine ecosystems.
Related to:
Oceanographic data from 12 monthly cruises off the Israeli coast in the east Mediterranean conducted between Feb 2018 and Jan 2019 at a continental shelf station (~140m depth) and an open-deep water station (2022). https://hdl.handle.net/1912/27901
Keuter, Sabine; Frada, Miguel J; Koplovitz, Gil; Ben Yehouda, Mayaan (2025): Nutrient limitation bioassays using natural populations of Gephyrocapsa huxleyi from the Gulf of Aqaba in contrasting seasons [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983184
Coverage:
Median Latitude: 31.147500 * Median Longitude: 34.660000 * South-bound Latitude: 29.475000 * West-bound Longitude: 34.380000 * North-bound Latitude: 32.820000 * East-bound Longitude: 34.940000
Date/Time Start: 2017-03-27T00:00:00 * Date/Time End: 2019-01-21T00:00:00
Minimum DEPTH, water: 2.0 m * Maximum DEPTH, water: 125.0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Keuter, Sabine | |||
| 2 | Sample code/label | Sample label | Keuter, Sabine | combination of date and sampling depth | ||
| 3 | Latitude of event | Latitude | Keuter, Sabine | |||
| 4 | Longitude of event | Longitude | Keuter, Sabine | |||
| 5 | DATE/TIME | Date/Time | Keuter, Sabine | Geocode | ||
| 6 | DEPTH, water | Depth water | m | Keuter, Sabine | Geocode – sampling depth | |
| 7 | Depth zone | Depth zone | Keuter, Sabine | winter mixing from November to March; from April to October: above DCM = upper layer during stratification, and DCM and below during stratification | ||
| 8 | Gephyrocapsa huxleyi, diameter | G. huxleyi diam | µm | Keuter, Sabine | Scanning electron microscopy (SEM) | x axis length of G. huxleyi coccosphere |
| 9 | Gephyrocapsa huxleyi, diameter | G. huxleyi diam | µm | Keuter, Sabine | Scanning electron microscopy (SEM) | y axis length of G. huxleyi coccosphere |
| 10 | Coccoliths, distal shield length | Cocco dist shield l | µm | Keuter, Sabine | Scanning electron microscopy (SEM) | distal shield length measurement of coccoliths attached on measured coccosphere |
| 11 | Gephyrocapsa huxleyi, diameter | G. huxleyi diam | µm | Keuter, Sabine | Scanning electron microscopy (SEM) | diameter of G. huxleyi coccosphere of which attached coccolith was measured |
| 12 | Coccoliths, distal shield length | Cocco dist shield l | µm | Keuter, Sabine | Scanning electron microscopy (SEM) | distal shield length measurement of detached coccolith |
| 13 | Gephyrocapsa ericsonii, diameter | G. ericsonii diam | µm | Keuter, Sabine | Scanning electron microscopy (SEM) | coccosphere diameter G. ericsonii |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
30994 data points
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