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Metadata: Intertidal Monitoring of Sabellaria alveolata Reefs in Pen Llyn ar Sarnau Special Areas of Conservation (SAC) (2004/2005)
Abstract:
The Habitats Directive establishes that the management of Special Areas of Conservation (SACs) should aim to achieve the favourable conservation status of habitat and species features listed within its Annex I and Annex II. For SACs in Wales, the Countryside Council for Wales (CCW) is therefore required to report on a regular basis on whether features are in favourable conservation status. Honeycomb reef worm Sabellaria alveolata is a sedentary, tube-dwelling polychaete most commonly found on rocky substrata in the lower shore and shallow subtidal zones of marine and estuarine areas. The honeycomb reef worm is a UK BAP Priority Habitat (BAP habitats are now Habitats of Principal Importance/Priority Habitats). Dense congregations of S. alveolata tubes form large biogenic reef structures, which can be up to a metre thick and take the form of hummocks, sheets or more massive formations. This dataset combines the results of two monitoring events carried out on Sabellaria alveolata reef features within the Pen Llyn a'r Sarnau SAC during 2004 and 2005. In 2004 the purpose of this data capture was to identify specific survey locations, measure the extent of S. alveolata reef along agreed transects, assess the quality of S. alveolata reef present. Map and make notes on any sightings of wireweed Sargassum muticum. In 2005 the purpose of this data capture was more detailed monitoring of selected reef areas to thoroughly characterise small patches of reef and make an assessment of the impacts of anthropogenic disturbance on reef diversity.
Data holder:
Natural Resources Wales (NRW)
Click on the red button for resource contact details:
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| Other details | ||
| Internal code | Internally assigned metadata identifier | 8578 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | Intertidal Monitoring of Sabellaria alveolata Reefs in Pen Llyn ar Sarnau Special Areas of Conservation (SAC) (2004/2005) |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | 2004 CCW / IECS Pen Llyn a'r Sarnau SAC Sabellaria alveolata reef monitoring MRCCW30200000010, 2005 CCW / IECS Pen Llyn a'r Sarnau SAC Sabellaria alveolata reefs monitoring MRCCW30200000019 |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | NRW_DS102008 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313032303038 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2004-07-05 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2005-08-10 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | The Habitats Directive establishes that the management of Special Areas of Conservation (SACs) should aim to achieve the favourable conservation status of habitat and species features listed within its Annex I and Annex II. For SACs in Wales, the Countryside Council for Wales (CCW) is therefore required to report on a regular basis on whether features are in favourable conservation status. Honeycomb reef worm Sabellaria alveolata is a sedentary, tube-dwelling polychaete most commonly found on rocky substrata in the lower shore and shallow subtidal zones of marine and estuarine areas. The honeycomb reef worm is a UK BAP Priority Habitat (BAP habitats are now Habitats of Principal Importance/Priority Habitats). Dense congregations of S. alveolata tubes form large biogenic reef structures, which can be up to a metre thick and take the form of hummocks, sheets or more massive formations. This dataset combines the results of two monitoring events carried out on Sabellaria alveolata reef features within the Pen Llyn a'r Sarnau SAC during 2004 and 2005. In 2004 the purpose of this data capture was to identify specific survey locations, measure the extent of S. alveolata reef along agreed transects, assess the quality of S. alveolata reef present. Map and make notes on any sightings of wireweed Sargassum muticum. In 2005 the purpose of this data capture was more detailed monitoring of selected reef areas to thoroughly characterise small patches of reef and make an assessment of the impacts of anthropogenic disturbance on reef diversity. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The 2004 monitoring was carried out using a revised methodology with untested field application methodology defined by Allen et al. (2002). In 2005 the four areas of S. alveolata reef within the Pen Llyn a'r Sarnau SAC intertidal area were surveyed in July and August 2004, working two hours either side of low water. Transect lines were mapped using an ORMTEC GIS412 portable dGPS, with software and logger developed specifically for this type of mapping. This system provides continuous or point logging facilities using the IRLA network, providing a temporal repeatable accuracy of between 1-5m with the data subsequently downloaded onto a PC for input into GIS. In order to achieve repeatability in survey techniques between sites, a working protocol was used. Sabellaria alveolata reef had previously been mapped along this coastline during Phase 1 surveys carried out by CCW. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Species distribution |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Tonfanau | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Pen Llyn a'r Sarnau SAC | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | sabellaria alveolata | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Friog | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Clarach | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Criccieth | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Shell Island | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | honeycomb worm | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | polychaete worms | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Borth | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Cae-du | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Special Areas of Conservation (SAC) - SAC monitoring | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Llandanwg | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | biogenic reef | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos taxonomy-related counts | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 52.94984614 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.02054288 |
| South | The southern-most limit of the data resource in decimal degrees | 51.97991891 |
| West | The western-most limit of the data resource in decimal degrees | -5.04520831 |
| Regional sea | Wales (WLS) | |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Countryside Council for Wales (CCW) | |
| Delivery point | Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresourceswales.gov.uk/splash?orig=/ | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Hull University. Institute Of Estuarine And Coastal Studies | |
| Delivery point | The University of Hull, Cottingham Road, Hull, HU6 7RX | |
| iecs@hull.ac.uk | ||
| URL | http://www.hull.ac.uk/iecs/ | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | This states any limitations on access to the data. Multiple occurences are allowed here. One entry shall be from the INSPIRE Metadata registry and the other free text should be part of the resource `Have specific limitations`. | There are no access restrictions to this data. NRW may release, publish or disseminate it freely. |
| no limitations | ||
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | © CNC/NRW 2008. 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. |
| This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. | |
| https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ | ||
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Documents |
| Format in which digital data can be provided for transfer | Geographic Information System | |
| Format in which digital data can be provided for transfer | Delimited | |
| Format in which digital data can be provided for transfer | Image | |
| Format in which digital data can be provided for transfer | Database | |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2008-12-31 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-03-03 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.2 |
| Metadata parent | NRW_DS114501 | |