Dataset

Zooplankton abundance and biomass from the RADIALES time series programme (N-NW Spain)

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

Zooplankton abundance and biomass data collected within the framework of the RADIALES time series monitoring programme, carried out by the IEO-CSIC. The sampling is undertaken monthly from 1988 at a series of stations located along five transects perpendicular to the North and Northwest Spanish coastline.

Sampling protocol varied slightly beween transects: oblique hauls with a 200 µm mesh-size Bongo (stations off Vigo) or Juday-Bogorov (Coruña) net; vertical hauls with 200 µm mesh-size WP2 net (off Cudillero and Gijón transects, and Santander from 2013 onwards); and oblique hauls with 250 µm mesh-size Juday-Bogorov (Santander until 2013). The nets were towed from 100 m (50 m for the Juday-Bogorov at the Santander transect) or 5 m above the bottom at shallower stations to the surface.In all cases, the samples for abundance were preserved in 4% tetraborate-buffered formaldehyde for subsequent counting and taxonomic identification under a stereoscopic microscope. The biomass samples were filtered and dried at 60 ºC during 48 h before weighing to estimate the dry weight. The samples for biomass collected with the WP2 net (Cudillero, Gijón, and Santander since 2013) were split into three size-fractions: 200-500 µm, 500-1000 µm, and > 1000 µm.

Citation
Isla A, González-Quirós R, Valdes L, Bode A, Nogueira E, Louro G, Nieto M, Casas G, Maneiro I (2026). Zooplankton abundance and biomass from the RADIALES time series programme (N-NW Spain). Version 1.2. Instituto Español de Oceanografía. Centro Oceanográfico de Gijón (CSIC). Samplingevent dataset. https://doi.org/10.15468/jd4g6n
Published
July 10, 2026 at 08:14
First registration
June 01, 2023 at 21:30
License
This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License

Contacts

Alejandro Isla
Spanish Institute of Oceanography (IEO-CSIC)

Rafael González-Quirós
Spanish Institute of Oceanography (IEO-CSIC)

Luis Valdes
Spanish Institute of Oceanography (IEO-CSIC)

Antonio Bode
Spanish Institute of Oceanography (IEO-CSIC)

Enrique Nogueira
Spanish Institute of Oceanography (IEO-CSIC)

Gelines Louro
Spanish Institute of Oceanography (IEO-CSIC)

Mar Nieto
Spanish Institute of Oceanography (IEO-CSIC)

Gerardo Casas
Spanish Institute of Oceanography (IEO-CSIC)

Isabel Maneiro
Spanish Institute of Oceanography (IEO-CSIC)

57,913
total submitted occurrences
57,913
accepted occurrences
125,071
measurements and facts
183
taxa
103
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 57,913
100.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
NO_ACCEPTED_NAME 34
0.1%

Measurement types

DNA derived data