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Cover of Intertidal Macroalgae along the N and NW Coast of the Iberian Peninsula in 2011
Citation
Ramos, E., Puente, A., Juanes, J.A. (Environmental Hydraulics Institute, IHCantabria), Spain (2019): Cover of intertidal macroalgae along the N and NW coast of the Iberian Peninsula in 2011. https://marineinfo.org/id/dataset/5973
Contact:
Ramos Manzanos, Elvira
Availability: 
This dataset is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
This dataset is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.Description
A standardized sampling methodology was carried out in 21 sites along the N and NW Iberian Peninsula. Field surveys were carried out during the low spring tides in April 2011. At each site, three transects perpendicular to the coast were selected. A stratified and systematic sampling procedure was carried out, dividing each transect into four areas: lower intertidal, middle intertidal, upper intertidal and supralittoral. The sampling stations were distributed at equal distances, three in the lower and middle intertidal and two in the upper intertidal and supralittoral. The sampling unit was standardized using a 50 x 50 cm grid. more
Algae were identified to the species level in situ or assigned to higher taxonomic categories when species identification was not possible. The taxa cover was obtained by photographic analysis. For this purpose, at least one photo of the grid was taken at each station. Then, the photographs were georeferenced and adjusted to the actual size of the field of view in ARCGIS. Macroalgae taxa were identified and outlined to create polygons whose areas were measured and recorded.
Algae were identified to the species level in situ or assigned to higher taxonomic categories when species identification was not possible. The taxa cover was obtained by photographic analysis. For this purpose, at least one photo of the grid was taken at each station. Then, the photographs were georeferenced and adjusted to the actual size of the field of view in ARCGIS. Macroalgae taxa were identified and outlined to create polygons whose areas were measured and recorded.
Scope
Themes:
Biology > Macroalgae
Keywords:
Marine/Coastal, Coverage, Polygons, ANE, Europe, Iberian Peninsula, EurOBIS calculated BBOX, Chromista, Chromista, Chromista, Plantae
Geographical coverage
ANE, Europe, Iberian Peninsula [Marine Regions]
EurOBIS calculated BBOX Stations
Bounding Box
Coordinates: MinLong: -9,2496; MinLat: 42,2343 - MaxLong: -2,0743; MaxLat: 43,6298 [WGS84]
Coordinates: MinLong: -9,2496; MinLat: 42,2343 - MaxLong: -2,0743; MaxLat: 43,6298 [WGS84]
Temporal coverage
15 April 2011 - 20 April 2011
Parameters
Contributors
University of Cantabria; Environmental Hydraulics Institute (IH Cantabria), data creator
Ramos Manzanos, Elvira
Publication
Based on this dataset
Ramos, E. et al. (2015). An ecological classification of rocky shores at a regional scale: a predictive tool for management of conservation values. Mar. Ecol. (Berl.) 37(2): 311-328. https://dx.doi.org/10.1111/maec.12280
Dataset status: Completed
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2018-07-18
Information last updated: 2022-08-01
