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SHARK - National marine bacterioplankton monitoring in Sweden since 1989
SMHI S (2021). SHARK - National marine bacterioplankton monitoring in Sweden since 1989. Version 1.5. SMHI. Sampling event dataset
Contact: Sundqvist, Lisa ;

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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.

Bacterial cell carbon content, cell volume and concentration at various sampling stations in the Swedish part of the Baltic Sea. Sampling is performed with a rosette sampler or Niskin bottles attached to a wire. Bacterioplankton has been monitored in Sweden since 1989. The national monitoring program was initiated by the Swedish Environmental Protection Agency and is now financed by the Swedish Agency for Marine and Water Management. Monitoring is performed by Umeå University. Data is stored in the Swedish Ocean Data Archive (SHARK) database by the Swedish Meteorological and Hydrological Institute. more

Bacterioplankton growth rate is an indicator of nutrient status in aquatic environments. Growth rate is an estimate of the consumption of organic carbon in the ecosystem and therefore closely related to the in situ biochemical oxygen demand (cf. BOD7). The growth rate thereby indicates the rate of oxygen consumption that may lead to oxygen deficiency in the water column when exceeding the oxygen supply. Data is collected and analyzed according to the Helcom COMBINE Manual - Part C Annex C11 Guidelines concerning bacterioplankton growth determination ( Information about the program and the methods are also available in Swedish at It is recommended to take at least 2 samples at different representative depths of the monitored layers of the water column. Surface layer and deepest layer are prioritised. A sampling frequency of 10 samples per year is perfered for confident annual estimates. Samples should be distributed in the seasonal curve to provide a good coverage of different levels.

Biology, Biology > Plankton > Bacterioplankton
Marine/Coastal, Carbon content, Oxygen deficiency, ANE, Baltic, ANE, Baltic, Bothnia Gulf, EurOBIS calculated BBOX, Bacteria

Geographical coverage
ANE, Baltic [Marine Regions]
ANE, Baltic, Bothnia Gulf [Marine Regions]
EurOBIS calculated BBOX Stations
Bounding Box
Coordinates: MinLong: 17,3568; MinLat: 61,0833 - MaxLong: 24,0392; MaxLat: 65,8967 [WGS84]

Temporal coverage
1989 - 2018

Taxonomic coverage
Bacteria [WoRMS]

Abundance of biological entity specified elsewhere per unit volume of the water body [BODC]
Bacterial cell carbon content
Bacterial cell volume
Bacterial concentration
Cell volume of biological entity specified elsewhere by cell size measurements and computation using stereometric formulas [BODC]
Depth (spatial coordinate) maximum relative to water surface in the water body [BODC]
Visibility in the water body by Secchi disk [BODC]

Swedish Agency for Marine and Water Managementdata creator
Swedish Meteorological and Hydrological Institute (SMHI)data creatordata provider
Sundqvist, Lisa
Umea University (UU)data creator
Swedish Environmental Protection Agency (SEPA)data creator

Related datasets
Parent dataset:
SHARK: Marine biological data of Sweden
Published in:
EurOBIS: European Ocean Biodiversity Information System, more

Dataset status: In Progress
Data type: Data
Data origin: Monitoring: field survey
Metadatarecord created: 2015-05-26
Information last updated: 2022-08-09
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