Skomer Marine Conservation Zone (MCZ) - Subtidal Monitoring
In 2015 Skomer Marine Nature Reserve changed designation to Skomer Marine Conservation Zone (MCZ). Skomer Marine Nature Reserve (MNR) was designated in 1990. Data collected during the development and implementation of low budget stereo-photographic monitoring of rocky subtidal epibenthic communities in within Skomer marine reserve. The data includes descriptions of communities present and subsequent changes in these communities over a one year period (1982 - 1983). The Skomer subtidal monitoring project was established as an ongoing project however this dataset includes the results from the first year only. Purpose of this data capture was to locate and permanently mark suitable monitoring stations and to observe and record the topography and epibenthic communities present in order to enable the assessment of the natural fluctuations in subtidal communities.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS111149
- Alternative Title
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- Skomer Marine Conservation Zone (MCZ) formally a Marine Nature Reserve ( MNR ) subtidal monitoring
- 1982-83 Bullimore Skomer sublittoral monitoring JNCCMNCR10000156
- Metadata Language
- English
- Lineage
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Stereophotography was chosen as sampling technique due to it being a non-destructive technique which requires minimal manpower and biological expertise. It also provides three dimensional images. Having considered accessibility, seabed topography etc, the north-east coast of Skomer was chosen as a location for establishing the permanent transect. A transect line was run from 30m to 5m and secured to pitons at intervals, marker tags were fixed to the line at 5m depth intervals from 5m to 25m and at these depths 1.5m fixed quadrats were secured with pitons. The photographs taken were analysed by viewing slides through two stereomicroscopes, using a hand-held commercial stereoslide viewer and examining the prints with photogrammetric apparatus. Each identifiable species or groups of species and biotic or non-biotic substrate is defined as a category, the occurrence of categories in quadrats is recorded quantitatively. The abundance of categories was estimated using two methods- percentage cover of categories was estimated by systematic point counting, and counts of numbers per unit area were made of certain categories.
- Dataset Reference Date (Publication)
- 1983-12-31
Temporal Extent
- Begin date
- 1982-05-01
- End date
- 1983-11-30
- Topic category
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- Biota
Extent
Extent
- Geographic Extent
- SIR BENFRO - PEMBROKESHIRE
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
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benthic boundary layer
Distribution
- Format Type and Description
-
-
Documents
(
)
- Specification
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[A] Hardcopy report. [B] JNCC's copy of Marine Recorder.
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Documents
(
)
Quality
Data quality
- Quality Scope
- Dataset
- Conformity
- 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
- Explanation
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This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Degree
- false
- Lineage
-
Stereophotography was chosen as sampling technique due to it being a non-destructive technique which requires minimal manpower and biological expertise. It also provides three dimensional images. Having considered accessibility, seabed topography etc, the north-east coast of Skomer was chosen as a location for establishing the permanent transect. A transect line was run from 30m to 5m and secured to pitons at intervals, marker tags were fixed to the line at 5m depth intervals from 5m to 25m and at these depths 1.5m fixed quadrats were secured with pitons. The photographs taken were analysed by viewing slides through two stereomicroscopes, using a hand-held commercial stereoslide viewer and examining the prints with photogrammetric apparatus. Each identifiable species or groups of species and biotic or non-biotic substrate is defined as a category, the occurrence of categories in quadrats is recorded quantitatively. The abundance of categories was estimated using two methods- percentage cover of categories was estimated by systematic point counting, and counts of numbers per unit area were made of certain categories.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
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NRW Thesaurus
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- Subtidal
- monitoring (see specific types of monitoring eg. woodland monitoring)
- marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore)
- transect (transects) (transect profile) (transect profiles)
- permanent monitoring site
- Skomer MNR
- Skomer (Skomer Island)
- Type
- Theme
Citation
- Date (Publication)
- 2026-08-27
Keywords
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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Skomer Marine Reserve subtidal monitoring project : development and implementation of low-budget stereophotographic monitoring of rocky subtidal epibenthic communities
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313131313439 XML
- Metadata Language
- English
- Parent Identifier
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Skomer Marine Conservation Zone ( MCZ ) - Marine Monitoring Programme Overview
NRW_DS110059
- Resource type
- Dataset
- Metadata Date
- 2026-09-28T14:14:22.451Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0