BGS Hosted Metadata
Leaf growth, nutrient, and stable isotope responses of seagrass exposed to nutrient enrichment, Laamu Atoll, Maldives, 2022-2023
The data consist of leaf extension rates of seagrass growth as the primary response variable; elemental and isotopic compositions of seagrass above- and below-ground biomass; seagrass morphological parameters; site-characterisation environmental parameters and temperature recorded over the experimental windows. This dataset contains in-situ experimental information relating two separate nutrient enrichment experiments that were conducted in January/February 2022 and January 2023 over 2-week periods. The experiments were designed to understand the growth response of seagrass to elevated nutrient concentrations relative to controls plots. We used agricultural fertilisers to elevate local concentrations. In 2022, we used a slow-release fertiliser and compared growth response rates at two contrasting site types with 3 treatment levels (Control, Low N and High N). In 2023, we used an all-purpose granular fertiliser, the same 3 treatment levels but varied how the fertiliser was delivered to the seagrass, i.e., water-column diffusion vs below-ground diffusion. Both experiments were conducted on the same island of Gan, in Laamu atoll, Maldives. The work has been undertaken has been funded by the GCRF-UKRI South Asian Nitrogen Hub and enabled through the University of Edinburgh and Maldivian non-governmental organisation, Maldives Resilient Reefs. Full details about this dataset can be found at https://doi.org/10.5285/8760a6d4-b9df-406d-b910-678ab0f6557f
Simple
- Date (Publication)
- 2026-02-17
- Citation identifier
- https://catalogue.ceh.ac.uk/id/8760a6d4-b9df-406d-b910-678ab0f6557f
- Citation identifier
- doi: / 10.5285/8760a6d4-b9df-406d-b910-678ab0f6557f
- Other citation details
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Arnull, J., Tudhope, A.W., Wilson, A.M.W., Ganeshram, R.S., Hashim, A.S., Ziyadh, A.M. (2026). Leaf growth, nutrient, and stable isotope responses of seagrass exposed to nutrient enrichment, Laamu Atoll, Maldives, 2022-2023. NERC EDS Environmental Information Data Centre 10.5285/8760a6d4-b9df-406d-b910-678ab0f6557f
- Point of contact
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Organisation name Individual name Electronic mail address Role University of Edinburgh
Jessica Arnull
Point of contact University of Edinburgh Arnull, J. Author University of Edinburgh Tudhope, A.W. Author University of Edinburgh Wilson, A.M.W.
Author University of Edinburgh Ganeshram, R.S. Author Maldives Resilient Reefs
Hashim, A.S. Author Maldives Resilient Reefs
Ziyadh, A.M.
Author University of Edinburgh
EMAIL NOT PROVIDED
Owner NERC EDS Environmental Information Data Centre Publisher NERC EDS Environmental Information Data Centre Custodian
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GEMET - INSPIRE themes, version 1.0
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Environmental Monitoring Facilities
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GEMET - Concepts, version 4.1.3
- Keywords
- 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: Arnull, J., Tudhope, A.W., Wilson, A.M.W., Ganeshram, R.S., Hashim, A.S., Ziyadh, A.M. (2026). Leaf growth, nutrient, and stable isotope responses of seagrass exposed to nutrient enrichment, Laamu Atoll, Maldives, 2022-2023. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/8760a6d4-b9df-406d-b910-678ab0f6557f
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Biota
- Environment
- Oceans
- Begin date
- 2022-01-01
- End date
- 2022-02-28
- Begin date
- 2023-01-01
- End date
- 2023-01-31
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- Unique resource identifier
- WGS 84
- 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/8760a6d4-b9df-406d-b910-678ab0f6557f Download the data
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/sd/8760a6d4-b9df-406d-b910-678ab0f6557f.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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Seagrass biomass was collected from each plot and then analysed for elemental and isotopic compositions (percent carbon, percent nitrogen δ13C and δ15N). Seagrass morphological parameters were recorded at the start and end of the experiment, including information on percent cover of seagrass and algae, canopy height and leaf density. Seagrass sheath density was calculated by randomly throwing 20 x 0.25m2 quadrats around the perimeter of the experimental sites and the number of sheaths counted. Environmental data about the experimental sites was collected at the start of the experiments to characterise the environment. This included water quality sampling, sediment organic nitrogen and carbon content, water depth, sediment depth and grain size analysis. Temperature was logged throughout the experiments using HOBO loggers. Manual checks were performed on the data points to look for any error in data entry or values reported outside the expected range. Any outliers were then investigated and corrected where appropriate.
Metadata
- File identifier
- 8760a6d4-b9df-406d-b910-678ab0f6557f XML
- Metadata language
- English
- Character set
- 8859 Part 1
- Hierarchy level
- Dataset
- Hierarchy level name
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dataset
- Date stamp
- 2026-02-17T16:00:54
- 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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