BGS Hosted Metadata
Biogeochemistry and phytoplankton data from Loch Etive, Scotland, October 2022
This dataset contains biogeochemical measurements of surface water, sampled across Loch Etive, Scotland, between the 3rd and 7th of October 2022. The dataset encompasses 23 locations including nine open loch stations, four fish-farm adjacent loch sites, six river inflows, and four process experiment river sites, enabling a comparison of water chemistry across marine, freshwater, and anthropogenically influenced environments. Surface water samples were collected and analysed for an extensive range of biogeochemical parameters. In-field measurements included water temperature, pH, dissolved oxygen, and specific conductivity. Laboratory analyses comprised: - Alkalinity - Major nutrients, including nitrate, nitrite, ammonium, soluble reactive phosphorus (SRP), and silica - Dissolved and total organic and inorganic carbon and nitrogen (DOC, TIC, TDN) - Trace elements and rare earth elements (REEs), including lithium, barium, aluminium, and a full suite of lanthanides - Stable isotope composition of oxygen (δ18O), determined via isotope ratio mass spectrometry - Chromophoric and fluorescent dissolved organic matter (CDOM/FDOM), with derived indices such as fluorescence index (FI), biological index (BIX), and humification index (HIX) In addition to water chemistry, particulate samples were collected and analysed for total suspended solids (TSS), particulate organic matter (POM), particulate inorganic matter (PIM), chlorophyll-a concentration, and particulate organic carbon/nitrogen (POC/PON). Phytoplankton community composition was assessed by flow cytometry, quantifying major groups including diatoms, pico- and nano-chlorophytes, cryptophytes, and cyanobacteria. This comprehensive dataset is intended to inform biogeochemical process understanding in polar analogue environments and to validate analytical workflows and inter-institutional protocols. Full details about this dataset can be found at https://doi.org/10.5285/50f4344e-a79a-4e1f-a9ee-e7985ed847cd
Simple
- Date (Publication)
- 2025-07-24
- Citation identifier
- https://catalogue.ceh.ac.uk/id/50f4344e-a79a-4e1f-a9ee-e7985ed847cd
- Citation identifier
- doi: / 10.5285/50f4344e-a79a-4e1f-a9ee-e7985ed847cd
- Other citation details
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Grant, A.L., Arrowsmith, C., Barry, C., Bowes, M.J., Callaghan, N., Eades, L.J., Fournier, I., Hendry, K., Mawji, E., O'Brien, A., Olszewska, J.P., Pickard, A.E., Tandy, S., Spears, B.M. (2025). Biogeochemistry and phytoplankton data from Loch Etive, Scotland, October 2022. NERC EDS Environmental Information Data Centre 10.5285/50f4344e-a79a-4e1f-a9ee-e7985ed847cd
- Point of contact
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Organisation name Individual name Electronic mail address Role UK Centre for Ecology & Hydrology Grant, A.
Point of contact UK Centre for Ecology & Hydrology Grant, A.L. Author British Geological Survey Arrowsmith, C. Author UK Centre for Ecology & Hydrology Barry, C.
Author UK Centre for Ecology & Hydrology Bowes, M.J. Author UK Centre for Ecology & Hydrology Callaghan, N. Author University of Edinburgh Eades, L.J.
Author UK Centre for Ecology & Hydrology Fournier, I. Author British Antarctic Survey Hendry, K. Author National Oceanography Centre Mawji, E. Author UK Centre for Ecology & Hydrology O'Brien, A. Author UK Centre for Ecology & Hydrology Olszewska, J.P. Author UK Centre for Ecology & Hydrology Pickard, A.E. Author UK Centre for Ecology & Hydrology Tandy, S. Author UK Centre for Ecology & Hydrology Spears, B.M. Author UK Centre for Ecology & Hydrology Owner NERC EDS Environmental Information Data Centre Custodian NERC EDS Environmental Information Data Centre Publisher
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GEMET - INSPIRE themes, version 1.0
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Hydrography
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GEMET - Concepts, version 4.1.3
- Keywords
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- Water quality
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Loch Etive
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Scotland
- Access constraints
- Other restrictions
- Other constraints
- no limitations
- Use constraints
- Other restrictions
- Use constraints
- Other restrictions
- Other constraints
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If you reuse this data, you should cite: Grant, A.L., Arrowsmith, C., Barry, C., Bowes, M.J., Callaghan, N., Eades, L.J., Fournier, I., Hendry, K., Mawji, E., O'Brien, A., Olszewska, J.P., Pickard, A.E., Tandy, S., Spears, B.M. (2025). Biogeochemistry and phytoplankton data from Loch Etive, Scotland, October 2022. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/50f4344e-a79a-4e1f-a9ee-e7985ed847cd
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Environment
- Begin date
- 2022-10-03
- End date
- 2022-10-07
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- Unique resource identifier
- OSGB 1936 / British National Grid
- Distribution format
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Name Version Comma-separated values (CSV)
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre
Distributor
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/data/50f4344e-a79a-4e1f-a9ee-e7985ed847cd Download the data
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/sd/50f4344e-a79a-4e1f-a9ee-e7985ed847cd.zip Supporting information
- Hierarchy level
- Dataset
- Other
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dataset
Conformance result
- Title
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Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Statement
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Surface water was collected via grab sampling at 23 sites across loch, river, and fish farm locations. In situ parameters were measured immediately using a HACH HQ4300 multimeter with calibrated pH, conductivity, and dissolved oxygen probes. Vacuum filtration units and portable pumps were used for sample processing. Samples were transported to the lab within 6 hours for processing. Nutrient concentrations were measured using segmented flow analysis; DOC, TIC, and TDN by thermal oxidation and chemiluminescence; metals and REEs by ICP-MS and ICP-OES; δ18O via isotope mass spectrometry. Phytoplankton were quantified using flow cytometry; particulate analyses followed gravimetric and spectrophotometric methods. Units include: Temperature (°C), pH (unitless), DO (mg/L, % saturation), conductivity (mS/cm) Nutrients: µmol/L or µg/L (e.g. nitrate, phosphate) DOC/TIC/TDN: mg/L Metals: µg/L or ppm Particulates: mg/L Phytoplankton: cells/mL CFDOM indices: Raman units or unitless indices (FI, HIX, BIX) Raw readings were calibrated and corrected; fluorescence data were processed in R; compiled data include site metadata and documented exclusions. Calibrations, reference standards, replicates, blanks, and internal controls were used. Analytical QA procedures were followed across all labs. Some data are missing due to instrument errors or lost samples. Not all parameters were measured at all sites.
Metadata
- File identifier
- 50f4344e-a79a-4e1f-a9ee-e7985ed847cd XML
- Metadata language
- English
- Character set
- 8859 Part 1
- Hierarchy level
- Dataset
- Hierarchy level name
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dataset
- Date stamp
- 2025-11-13T16:15:02
- Metadata standard name
- UK GEMINI
- Metadata standard version
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2.3
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre Point of contact
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