Dataset

Phytoplankton composition, biomass and abundance in Estonian territorial waters 1993-2016

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

The dataset contains abundance and biomass for different taxonomical units of phytoplankton (from phylum to species, according to identification accuracy) sampled from Estonian open and coastal waters in the Baltic Sea. Samples are collected with Ferrybox method (sampling depth appr. 5m) or by pooling samples from discrete depths (1, 5 and 10m) in national monitoring stations. Phytoplankton identification and enumeration was carried out using microscopy, biomass calculations were done using volume formulas provided by HELCOM-PEG (phytoplankton expert group) and published in http://www.ices.dk/marine-data/data-portals/Pages/DOME.aspx (PEG BIOVOLUME).

Citation: Estonian Marine Institute, University of Tartu and Marine Systems Institute, Tallinn University of Technology (2019): Phytoplankton composition, biomass and abundance in Estonian territorial waters 1993-2016

Published: September 17, 2025 at 08:37

URL: http://ipt.vliz.be/eurobis/resource?r=phytoplankton_data_from_estonian_marine_monitoring_1993-2016

University of Tartu; Estonian Marine Institute
University of Tartu; Estonian Marine Institute

Tallinn University of Technology; Marine Systems Institute
Tallinn University of Technology; Marine Systems Institute

Asko Põder
Ministry of the Environment of the Estonian Republic

Lara Podkuiko
Tallinn University of Technology

122,564
occurrence records
340,224
measurements and facts
234
taxa
123
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 122,564
100.0%
scientificNameID 12,908
10.5%

Quality flags

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

Flag Dropped Records
NO_MATCH 12,908
10.5%
NO_ACCEPTED_NAME 5,010
4.1%
MARINE_UNSURE 3,871
3.2%
NOT_MARINE 2,794
2.3%
ON_LAND 998
0.8%

Measurement types

DNA derived data