Hill, Claudia E L; Rücker, Julia; Eichhorn, Nele; Mezger, Selma D; Caporale, Giulia; El-Khaled, Yusuf C; Blanco, Sahara; Wild, Christian; Tilstra, Arjen (2025): Algal symbiont density of coral Xenia umbellata in a aquarium experiment [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974806, In: Hill, CEL et al. (2025): Excess particulate organic matter negatively affects the ecophysiology of the widespread soft coral Xenia umbellata [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.974797
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Published: 2025-02-10 • DOI registered: 2025-03-11
Abstract:
One colony per tank was randomly selected every 7 days and stored at -20°C. On analysis day, colonies were thawed, homogenised in 10 ml demineralised water, and the slurry volume was measured. 2ml of the slurry was aliquoted, centrifuged twice to separate algal cells from coral tissue, and resuspended in demineralised water. After vortexing 10 µL was loaded onto a haemocytometer. Cells in the outer grids of both chambers were counted under a light microscope (two counts per sample). Data were normalised to the initial slurry volume and colony surface area. Xenia umbellata originates from the Red Sea.
Comment:
Study location: Aquarium experiment at the University of Bremen, Germany
Treatments: 3 carbon enrichment treatments of 20 mg C/L. DOM (glucose), 2. POM (phytoplankton), 3. POM (zooplankton)
Date of study: May 2022
Duration of study: 28 days
Species information: Xenia umbellata native to the Indo-Pacific and Red Sea
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Hill, Claudia E L | |||
| 2 | Tank number | Tank No | Hill, Claudia E L | |||
| 3 | Treatment | Treat | Hill, Claudia E L | |||
| 4 | Day of experiment | DOE | day | Hill, Claudia E L | ||
| 5 | Algae, cell density | Alg cells | #/cm2 | Hill, Claudia E L | Haemocytometer counting, Improved Neubauer [depth 0.1 mm] |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
300 data points
Data
| 1 Study type | 2 Tank No | 3 Treat | 4 DOE [day] | 5 Alg cells [#/cm2] |
|---|---|---|---|---|
| Laboratory experiment | T1 | Zooplankton | 1 | 437666.02220 |
| Laboratory experiment | T2 | Control | 1 | 72148.90041 |
| Laboratory experiment | T3 | DOC | 1 | 229319.58400 |
| Laboratory experiment | T4 | Phytoplankton | 1 | 281343.96340 |
| Laboratory experiment | T5 | Phytoplankton | 1 | 144932.35140 |
| Laboratory experiment | T6 | DOC | 1 | 246591.50500 |
| Laboratory experiment | T7 | Zooplankton | 1 | 229106.79130 |
| Laboratory experiment | T8 | Control | 1 | 133926.39640 |
| Laboratory experiment | T9 | Zooplankton | 1 | 332074.80740 |
| Laboratory experiment | T10 | Phytoplankton | 1 | 155636.57010 |
| Laboratory experiment | T11 | Control | 1 | 132507.33960 |
| Laboratory experiment | T12 | DOC | 1 | 79813.62570 |
| Laboratory experiment | T1 | Zooplankton | 7 | 385431.01780 |
| Laboratory experiment | T2 | Control | 7 | 133331.16800 |
| Laboratory experiment | T3 | DOC | 7 | 201776.68310 |
| Laboratory experiment | T4 | Phytoplankton | 7 | 126267.82250 |
| Laboratory experiment | T5 | Phytoplankton | 7 | 171855.42590 |
| Laboratory experiment | T6 | DOC | 7 | 98203.10053 |
| Laboratory experiment | T7 | Zooplankton | 7 | 93804.41999 |
| Laboratory experiment | T8 | Control | 7 | 146576.18710 |
| Laboratory experiment | T9 | Zooplankton | 7 | 223581.64790 |
| Laboratory experiment | T10 | Phytoplankton | 7 | 157097.51590 |
| Laboratory experiment | T11 | Control | 7 | 107409.64120 |
| Laboratory experiment | T12 | DOC | 7 | 145408.33500 |
| Laboratory experiment | T1 | Zooplankton | 14 | 83540.83205 |
| Laboratory experiment | T2 | Control | 14 | 37884.79593 |
| Laboratory experiment | T3 | DOC | 14 | 92919.47263 |
| Laboratory experiment | T4 | Phytoplankton | 14 | 52213.02003 |
| Laboratory experiment | T5 | Phytoplankton | 14 | 137842.37290 |
| Laboratory experiment | T6 | DOC | 14 | 71489.03989 |
| Laboratory experiment | T7 | Zooplankton | 14 | 179911.14900 |
| Laboratory experiment | T8 | Control | 14 | 51151.64061 |
| Laboratory experiment | T9 | Zooplankton | 14 | 172138.08290 |
| Laboratory experiment | T10 | Phytoplankton | 14 | 177917.15820 |
| Laboratory experiment | T11 | Control | 14 | 188583.15690 |
| Laboratory experiment | T12 | DOC | 14 | 160303.82300 |
| Laboratory experiment | T1 | Zooplankton | 21 | 168752.48070 |
| Laboratory experiment | T2 | Control | 21 | 107517.05090 |
| Laboratory experiment | T3 | DOC | 21 | 118843.57080 |
| Laboratory experiment | T4 | Phytoplankton | 21 | 160234.05490 |
| Laboratory experiment | T5 | Phytoplankton | 21 | 315619.09960 |
| Laboratory experiment | T6 | DOC | 21 | 205271.75880 |
| Laboratory experiment | T7 | Zooplankton | 21 | 183312.45430 |
| Laboratory experiment | T8 | Control | 21 | 112447.43850 |
| Laboratory experiment | T9 | Zooplankton | 21 | 72020.99100 |
| Laboratory experiment | T10 | Phytoplankton | 21 | 238959.86510 |
| Laboratory experiment | T11 | Control | 21 | 64589.95874 |
| Laboratory experiment | T12 | DOC | 21 | 145637.32450 |
| Laboratory experiment | T1 | Zooplankton | 28 | 181861.96520 |
| Laboratory experiment | T2 | Control | 28 | 114386.67770 |
| Laboratory experiment | T3 | DOC | 28 | 71799.95836 |
| Laboratory experiment | T4 | Phytoplankton | 28 | 214211.30330 |
| Laboratory experiment | T5 | Phytoplankton | 28 | 125311.24810 |
| Laboratory experiment | T6 | DOC | 28 | 103729.86650 |
| Laboratory experiment | T7 | Zooplankton | 28 | 123836.99810 |
| Laboratory experiment | T8 | Control | 28 | 72962.28882 |
| Laboratory experiment | T9 | Zooplankton | 28 | 150984.77210 |
| Laboratory experiment | T10 | Phytoplankton | 28 | 157649.63470 |
| Laboratory experiment | T11 | Control | 28 | 161834.89230 |
| Laboratory experiment | T12 | DOC | 28 | 56390.06164 |