Description
The objective of this dataset is to compile 0.25 m2 quadrats and the abundance of macro vegetation covering area beneath these quadrats taken across the intertidal areas of the Tagus Estuary and Aveiro Lagoon over the boreal summer of 2022. The data recorded percentage cover of the Seagrass (Zostera noltei (Hornemann 1832)) and macroalgae, Ulva sp., Chaetomorpha sp., Bladder Wrack (Fucus vesiculosus (Linnaeus 1853)) and Agarophyton vermiculophyllum (Ohmi Gurgel, J.N. Norris & Fredericq, 2018.) quadrats were taken between the 13th and 17th of June 2022. This dataset has been acquired to validate maps of the spatial distribution of Zostera noltei obtained at the ecosystem scale with remote sensing images and notably Sentinel 2 with a 10 to 20 m pixel resolution. Therefore, some quadrats were spatially arranged to form a cross shape to fill a 10 m satellite pixel.
Data Records
The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 419 records.
1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Davies B F R, Figueira R, Oiry S, Sousa A, Gernez P, Barillé L (2022): Benthic Intertidal Vegetation from the Tagus Estuary and Aveiro Lagoon. v1.2. No organisation. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=bentic-vegetation-tagus-aveiro&v=1.2
Rights
Researchers should respect the following rights statement:
This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
This resource has not been registered with GBIF
Keywords
Samplingevent; Intertidal; Vegetation; Seagrass; Macroalgae; Portugal
Contacts
- Metadata Provider ●
- Originator ●
- Point Of Contact
http://orcid.org/0000-0001-6462-4347
- Originator
- Originator
- Originator
- Originator
- Originator ●
- Point Of Contact
Geographic Coverage
Atlantic Coast of Portugal
| Bounding Coordinates | South West [36.386, -12.92], North East [42.876, -6.064] |
|---|
Taxonomic Coverage
Seagrass (Zostera noltei) and Bladder wrack (Fucus vesiculosus) and the rhodophyte Agarophyton vermiculophyllum were ranked to species level, while Ulva spp. and Chaetomorpha spp. are ranked at the genus level. Nomenclature follows WoRMs.
| Class | Magnoliopsida (Angiosperms), Phaeophyceae (Brown Algae), Ulvophyceae (Green Algae), Florideophyceae (Red Algae) |
|---|
Temporal Coverage
| Start Date / End Date | 2022-06-13 / 2022-06-17 |
|---|
Project Data
No Description available
| Title | Biodiversity of the Coastal Ocean: Monitoring with Earth Observation (BiCOME) |
|---|---|
| Funding | This research was funded by a grant by the European Space Agency (ESA). |
The personnel involved in the project:
- Author
- Author
Sampling Methods
Sampling was carried out across areas of intertidal area accessible on foot.
| Study Extent | Quadrat Photographed alongside taking dGPS location (Trimble Geo 7). |
|---|---|
| Quality Control | Images were analysed consistently, with 10% of images being checked by expert commentators. The dataset was adjusted to the Darwin Core specifications (Wieczorek et al. 2012) in order to be published in the GBIF network. |
Method step description:
- Quadrat images were loaded into ImageJ software where polygons were drawn around visible extent of vegetation types, which allowed the percentage cover of each quadrat to be calculated.
Bibliographic Citations
- Wieczorek, J.; Bloom, D.; Guralnick, R.; Blum, S.; Döring, M.; Giovanni, R.; Robertson, T. & Vieglais D. (2012) Darwin Core: An evolving community-developed biodiversity data standard. PLOS One 7: e29715. https://doi.org/10.1371/journal.pone.0029715 https://doi.org/10.1371/journal.pone.0029715
Additional Metadata
| Alternative Identifiers | http://ipt.gbif.pt/ipt/resource?r=bentic-vegetation-tagus-aveiro |
|---|