European Directory of Marine Environmental Data (EDMED)

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Data set name

Benthic microflora and productivity in the intertidal area of Ria de Arosa, Galicia (Spain)

Data holding centreIEO/Spanish Oceanographic Institute
CountrySpain  Spain
Time periodFrom October 1980 to November 1981
Geographical area

Ria de Arosa (Galicia, NW Spain)


Chlorophyll pigment concentrations in water bodies; Dissolved organic carbon concentration in the water column; Concentration of dissolved organic matter in the water column; Sediment grain size parameters; Nitrate concentration parameters in the water column; Nitrite concentration parameters in the water column; Phosphate concentration parameters in the water column; Primary production in the water column; Dissolved inorganic nitrogen concentration in the water column; Ammonium and ammonia concentration parameters in water bodies


Autoanalysers; spectrophotometers; liquid scintillation counters


Data were obtained in the course of a year, with monthly samples taken in the intertidal area of the Ria de Arosa in Carril, Pontevedra. 3 clear samples and 1 dark (from the upper cm. of the sediment) for primary production. Means of production at low and high tide. Sample-taking at midday, coinciding with low tide. Processing of samples in accordance with Van Raalte (1974). Separation of epipelic (free forms) from episammic (forms adhered to sand grains) production. Stimulation of plankton production in the column of water and comparison with production in sediment. 5 samples of the superficial layer for pigment analysis (Lorenzen 1967 and Whitney and Darley 1979 techniques). 3 replicates for organic matter (dry weight free of ashes) and CN (Perkin Elmer analyzer). Monthly data on solar radiation provided by the meteorological centre near to the location.

OriginatorsIEO/ La Coruna Oceanographic Centre
OrganisationIEO/Spanish Oceanographic Institute
ContactAlvaro Fernandez (Director)

IEO/Spanish Oceanographic Institute
Corazon de Maria,8


Telephone+34 91 5974443
Facsimile+34 915 974770
Collating centreIEO/Spanish Oceanographic Institute
Local identifier8036070
Global identifier2719
Last revised2009-01-12