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Annual wrack biomass of the northern Portugal sandy beaches
Citable as data publication
Guerrero-Meseguer L.; Veiga P. and Rubal M. CIIMAR - Interdisciplinary Centre of Marine and Environmental Research: Portugal; (2022): Annual wrack biomass of the northern Portugal sandy beaches.
Contact: Guerrero Meseguer, Laura

Access data
Archived data
Availability: CC0 To the extent possible under law, the person who associated CC0 with this dataset has waived all copyright and related or neighboring rights to this dataset.

Wrack accumulations are a source of nutrients on sandy beaches and host invertebrate species, increasing local biodiversity. The distribution of these important accumulations varies in space and time depending on the environmental conditions of the area and the biological factors of the species that compose it. Consequently, this spatio-temporal variability in the wrack accumulations remains poorly understood in some regions. This database compiles the monthly variability in dry weight biomass of six seaweed taxa(Saccorhiza polyschides, Fucus spp., Ascophyllum nodosum, Cystoseira spp., Ulva spp. and Sargassum muticum) which forming the wrack of four sandy beaches in the northern Portugal (Âncora, Cabedelo, Paramos and São Pedro de Maceda)through a year. more

Samples of wrack of the taxa Saccorhiza polyschides, Fucus spp., Ascophyllum nodosum, Cystoseira spp., Ulva spp. and Sargassum muticum were collected along a 10 m transect at each beach and date (May 2019, June 2019, July 2019, August 2019, September 2019, October 2019, November 2019, December 2019, January 2020, February 2020, March 2020 and May 2020). The fresh and decomposed wrack of each taxa was collected and transported to the laboratory where it was cleaned and dried at 60°C until it reached a constant weight to quantify the total biomass per 10 m transect.

Biology > Macroalgae, Biology > Productivity - biomass
Biometrics, Portugal, Seagrass, ANE, Portuguese Exclusive Economic Zone, EurOBIS calculated BBOX, Phaeophyceae

Geographical coverage
ANE, Portuguese Exclusive Economic Zone [Marine Regions]
EurOBIS calculated BBOX Stations
Bounding Box
Coordinates: MinLong: -8,8658; MinLat: 40,932 - MaxLong: -8,6511; MaxLat: 41,807 [WGS84]

Temporal coverage
1 May 2019 - 1 May 2020

Taxonomic coverage
Phaeophyceae [WoRMS]

Biomass Methodology
Dry weight biomass (in assayed sample) of biological entity specified elsewhere [BODC]
Biomass: Drying and wheighing
during night in stove at 105 °C ; during 2 hours ashed on 550 °C; determining wheight difference

Universitat de les Illes Balears; Instituto Mediterraneo de Estudios Avanzados (IMEDEA)data creator
Guerrero Meseguer, Laura
University of Porto; Interdisciplinary Centre for Marine and Environmental Research (Porto) (CIIMAR), moredata creatordata creator
Veiga, Puri
Rubal Garcia, Marcos

Related datasets
Published in:
EurOBIS: European Ocean Biodiversity Information System, more

Dataset status: Completed
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2022-03-31
Information last updated: 2022-04-12
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