Guan, Chi; Weinberger, Florian (2019): Seasonal dynamics in the chemical defence of eelgrass against microfoulers [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.899567, Supplement to: Guan, Chi; Saha, Mahasweta; Weinberger, Florian (2019): Chemical Defence of a Seagrass against Microfoulers and Its Seasonal Dynamics. Applied Sciences, 9(6), 1258, https://doi.org/10.3390/app9061258
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Abstract:
We assessed the seasonality of bacterial settlement pressure, defense against microsettlers and concentrations of a previously identified defense compound, Rosmarinic acid, on surfaces of the eelgrass Zostera marina, sampled monthly at four plots in the Kiel Fjord (SW Baltic Sea). Water temperature, salinity, nutrient concentrations in water and light intensity were also measured, as well as photosynthetically active radiation.
Coverage:
Latitude: 54.393861 * Longitude: 10.190456
Date/Time Start: 2015-05-01T00:00:00 * Date/Time End: 2015-11-30T00:00:00
Minimum Elevation: -1.4 m * Maximum Elevation: -0.6 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sampling date | Sampling date | Guan, Chi | |||
| 2 | Plot | Plot | Guan, Chi | |||
| 3 | Species | Species | Guan, Chi | |||
| 4 | Bacteria | Bact | Guan, Chi | Fluorescence after DNA staining | Density of bacteria on Zostera leaf surface per 0.2 cm2 | |
| 5 | Bacteria | Bact | Guan, Chi | Fluorescence after DNA staining | Fouling pressure, Density of bacteria on glass slides per 0.2 cm2 | |
| 6 | Ratio | Ratio | % | Guan, Chi | Density of bacteria on Zostera relative to density of bacteria on glass slides | |
| 7 | Defense strength | Defense str | Guan, Chi | Optical density measurements | log(treatment/control); Tendency of B. aquimaris for settlement on Zostera extract, relative to settlement on control | |
| 8 | Defense strength | Defense str | Guan, Chi | Optical density measurements | log(treatment/control); Tendency of A. stellipolaris for settlement on Zostera extract, relative to settlement on control | |
| 9 | Defense strength | Defense str | Guan, Chi | Optical density measurements | log(treatment/control); Tendency of L. rosea for settlement on Zostera extract, relative to settlement on control | |
| 10 | Defense strength | Defense str | Guan, Chi | Optical density measurements | log(treatment/control); Tendency of P. dokdonensis for settlement on Zostera extract, relative to settlement on control | |
| 11 | Defense strength | Defense str | Guan, Chi | log(treatment/control); Mean tendency of 4 bacteria for settlement on Zostera extract, relative to settlement on control | ||
| 12 | Rosmarinic acid | C18H16O8 | µg/ml | Guan, Chi | High Performance Liquid Chromatography (HPLC) | |
| 13 | Temperature, water | Temp | °C | BSH | CTD | |
| 14 | Radiation, photosynthetically active | PAR | µmol/m2/s | Guan, Chi | Radiometer (RM) | provided by GEOMAR meteorology department; unit relates to photons |
| 15 | Salinity | Sal | BSH | CTD | ||
| 16 | Nitrate | [NO3]- | µmol/l | Guan, Chi | Photometric assay | |
| 17 | Nitrite | [NO2]- | µmol/l | Guan, Chi | Photometric assay | |
| 18 | Ammonium | [NH4]+ | µmol/l | Guan, Chi | Photometric assay | |
| 19 | Phosphate | [PO4]3- | µmol/l | Guan, Chi | Photometric assay |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
516 data points