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Phytoplankton abundance data from the Gibraltar coastline 2009-2019
Phytoplankton Analysis Team, Cefas & HM Government of Gibraltar (2020). Phytoplankton abundance data from the Gibraltar coastline 2009-2019. Cefas, UK. V1
Contact: The Archive for Marine Species and Habitats Data (MBA-DASSH)

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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.

Full community phytoplankton analysis results, expressed as cells per litre, from samples collected from the Gibraltar coastline between 2009 to 2019. The data were derived from water samples collected at a 2m depth using a Niskin sampler on an quarterly basis at four sites by HM Government of Gibraltar. Site positions are included in the dataset, and are accurate to +/- 30m. more

Samples were preserved with acidified Lugol's Iodine and sent immediately after collection. Once received by Cefas, samples were analysed using the Utermohl method detailed in the UKNRL SOP for phytoplankton (, using high-power inverted microscopes, as soon as possible after receipt in order to reduce deterioration of the cells. Identification was to genera or species level where possible, according to light microscopy limitations, and was otherwise to taxonomic or morphological groupings. Size categories are available for some species and for morphological/taxonomic groups. Between 2009 and 2015, the counting methods consisted of either Whole Baseplate or Fields of View. From late 2015, the counting method of Transects was introduced, and used alongside Whole Base and Fields of View.

Biology > Plankton > Phytoplankton
Marine/Coastal, Abundance, Coastlines, Niskin samplers, Phytoplankton, EurOBIS calculated BBOX, MED, Gibraltar Strait

Geographical coverage
EurOBIS calculated BBOX Stations
Bounding Box
Coordinates: MinLong: -5,3681; MinLat: 36,1191 - MaxLong: -5,3388; MaxLat: 36,1526 [WGS84]
MED, Gibraltar Strait [Marine Regions]

Temporal coverage
3 July 2009 - 3 March 2019


Abundance of biological entity specified elsewhere per unit volume of the water body [BODC]

Marine Biological Association of the UK; The Archive for Marine Species and Habitats Data (DASSH)
Centre for Environment, Fisheries and Aquaculture Science (CEFAS), moredata creator

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

Dataset status: Completed
Data type: Data
Data origin: Monitoring: field survey
Metadatarecord created: 2021-10-01
Information last updated: 2024-06-21
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