Moreira-Saporiti, Agustín; Teichberg, Mirta (2022): Seagrass canopy height and leaf area in Changuu Island (Unguja Island, Zanzibar Archipelago, Tanzania) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.942660, In: Moreira-Saporiti, A; Teichberg, M (2022): Seagrass abundance and morphological, nutritional and biochemical traits in relation to sea urchin Tripneustes gratilla overgrazing [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.942667
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Abstract:
We measured seagrass leaf area and canopy height. We took six biomass cores in random points in the study site Changuu Island. We then measured with a ruler the canopy height (centimeters) as the length of the leaves (from meristem to the tip of the leaf) of each seagrass species in each core. For T. ciliatum, we measured the length of the stem separately and coupled it to the corresponding shoot. Stem and leaf lengths were then summed to obtain canopy height. The length (centimeters) and width (centimeters) of each leaf was measured with a ruler and then multiplied to calculate the leaf area per species (squared centimeters). Special case for T. ciliatum: Some of the datapoints show no data for leaf lenght and width for this species. In these cases, the shoot has been overgrazed and therefore there was no leaf material to measure, and only the stem length was measured.
Supplement to:
Moreira-Saporiti, Agustín; Hoeijmakers, Dieuwke; Reuter, Hauke; Msuya, Flower E; Gese, Katrin; Teichberg, Mirta (2023): Bottom‐up and top‐down control of seagrass overgrazing by the sea urchin Tripneustes gratilla. Marine Ecology, 44(1), e12734, https://doi.org/10.1111/maec.12734
Funding:
German Research Foundation (DFG), grant/award no. DFG TE 1046/3-1: Seagrass and Macroalgal Community Dynamics and Performance under Environmental Change (SEAMAC)
Coverage:
Latitude: -6.117806 * Longitude: 39.167383
Date/Time Start: 2015-11-24T00:00:00 * Date/Time End: 2015-11-24T00:00:00
Minimum Elevation: 0.0 m * Maximum Elevation: 0.0 m
Event(s):
Unguja_Island_Changuu1 * Latitude: -6.117806 * Longitude: 39.167383 * Date/Time: 2015-11-24T00:00:00 * Elevation: 0.0 m * Location: Zanzibar Archipealgo, Tanzania * Method/Device: Core (CORE) * Comment: The sampling sites consisted of subtidal meadows (1-4 meters depth) of around 2500 square meters, delimited by the coastline and a fringing reef.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Site | Site | Moreira-Saporiti, Agustín | |||
| 2 | Number | No | Moreira-Saporiti, Agustín | Transect | ||
| 3 | Species | Species | Moreira-Saporiti, Agustín | Of seagrass | ||
| 4 | Core | Core | Moreira-Saporiti, Agustín | Biomass core ID | ||
| 5 | Identification | ID | Moreira-Saporiti, Agustín | Seagrass shoot ID | ||
| 6 | Identification | ID | Moreira-Saporiti, Agustín | Seagrass leaf ID | ||
| 7 | Seagrass, leaf length | Seagr leaf l | cm | Moreira-Saporiti, Agustín | Ruler tape | |
| 8 | Seagrass, leaf width | Seagr leaf w | cm | Moreira-Saporiti, Agustín | Ruler tape | |
| 9 | Thalassodendron ciliatum, stem length | T. ciliatum stem l | cm | Moreira-Saporiti, Agustín | Ruler tape | |
| 10 | Seagrass, leaf area | Seagr leaf area | cm2 | Moreira-Saporiti, Agustín | Calculated, see abstract | |
| 11 | Seagrass, canopy height | Seagr canopy h | cm2 | Moreira-Saporiti, Agustín | Calculated, see abstract |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
19385 data points
Download Data
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