© OpenStreetMap contributors
- Add External Layer
- Upload Shapefile
- Layer Tutorial
- Close
Use the checkbox () to show or hide a layer.
Use the radio buttons () to select a layer to use with the identify function.
- Layers
- Opacity
Available layers
(ctrl+c)
Search for marine data across UK organisations
- API
- How-To
- About
- Contact MEDIN
- Share
Metadata: Sediment Core Sampling of Seagrass (Zostera) Bed and Sediment Areas in Porth Dinllaen
Abstract:
As part of the management of the Pen Llyn a'r Sarnau Special Area of Conservation (SAC), the SAC Officer has been working with the National Trust, local fishermen, boat owners and others to look at options to reduce the impact of moorings on the seagrass (Zostera marina) bed at Porth Dinllaen, North Wales. This is a joint project between Countryside Council for Wales (CCW) and Gwynedd County Council as part of the Pen Llyn a'r Sarnau SAC. As part of the Porth Dinllaen seagrass project a variety of studies are being undertaken to secure an appropriate baseline to establish a detailed picture of the current condition of the seagrass bed that can be used as a reference point to monitor recovery in the future as the project proceeds. These were conducted to aid in the management of the seagrass bed (Zostera marina) present, listed as an important feature under Regulation 35 for the Pen Llyn a'r Sarnau Special Area of Conservation. This project was a component of a much larger venture which aims to better understand the local ecology and biology of Porth Dinllaen seagrass bed, with an ultimate goal of developing more seagrass friendly moorings and management techniques. The project has been let in 4 stages: 1) The core and sediment samples and field notes were collected by MES on the 10th October 2) The cores were sent to Thomson Unicomarine for infauna and sediment analysis (By CCW) 3) The species data was sent to MES analysed in PRIMER (Paid by GCC) 4) The analysed data was entered into Marine Recorder under the PKC data capture contract
Data holder:
Natural Resources Wales (NRW)
Click on the red button for resource contact details:
- Click on the red button for resource contact details
| Other details | ||
| Internal code | Internally assigned metadata identifier | 8820 |
| 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. | Sediment Core Sampling of Seagrass (Zostera) Bed and Sediment Areas in Porth Dinllaen |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | 2012 CCW Porth Dinllaen Seagrass Bed Infauna and Sediments Survey MRCCW31700000008 |
| 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_DS115274 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313135323734 |
| 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 | 2012-10-10 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2012-10-10 |
| 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. | As part of the management of the Pen Llyn a'r Sarnau Special Area of Conservation (SAC), the SAC Officer has been working with the National Trust, local fishermen, boat owners and others to look at options to reduce the impact of moorings on the seagrass (Zostera marina) bed at Porth Dinllaen, North Wales. This is a joint project between Countryside Council for Wales (CCW) and Gwynedd County Council as part of the Pen Llyn a'r Sarnau SAC. As part of the Porth Dinllaen seagrass project a variety of studies are being undertaken to secure an appropriate baseline to establish a detailed picture of the current condition of the seagrass bed that can be used as a reference point to monitor recovery in the future as the project proceeds. These were conducted to aid in the management of the seagrass bed (Zostera marina) present, listed as an important feature under Regulation 35 for the Pen Llyn a'r Sarnau Special Area of Conservation. This project was a component of a much larger venture which aims to better understand the local ecology and biology of Porth Dinllaen seagrass bed, with an ultimate goal of developing more seagrass friendly moorings and management techniques. The project has been let in 4 stages: 1) The core and sediment samples and field notes were collected by MES on the 10th October 2) The cores were sent to Thomson Unicomarine for infauna and sediment analysis (By CCW) 3) The species data was sent to MES analysed in PRIMER (Paid by GCC) 4) The analysed data was entered into Marine Recorder under the PKC data capture contract |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | A total of 24 subtidal infaunal sediment cores and 8 sediment particle analysis cores have been collected from three different habitats within the area of the Porth Dinllaen seagrass bed: -mooring scar areas (3 sample locations with 3 replicate infaunal cores and 1 sediment core at each location), -seagrass bed areas with good seagrass cover (3 sample locations with 3 replicate infaunal cores and 1 sediment core at each location) -sediment areas outside of the seagrass bed and mooring scars (2 sample locations with 3 replicate infaunal cores and 1 sediment core at each location) In addition to the core data, diver observations of sediment composition, sediment features and characteristics, and epifauna have been collected for each sample location. The aims of these cores were to assess any significant difference between the infaunal communities and sediment profiles of these three habitat types. |
| 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 | seagrasses (see also potamogetonaceae and hydrocharitaceae) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | marine sediments (coastal sediments) (intertidal sediments) (subtidal sediments) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | posidoniaceae | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | sediment infauna | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | sediment sample | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | anchor damage | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | zostera | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos taxonomic abundance | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sedimentary structure | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos generic abundance | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Macroalgae and seagrass infection and damage | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 52.95115279 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.52893256 |
| South | The southern-most limit of the data resource in decimal degrees | 52.93406222 |
| West | The western-most limit of the data resource in decimal degrees | -4.5668596 |
| Regional sea | soil and sediment | |
| GWYNEDD - GWYNEDD | ||
| 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 | Marine Ecological Solutions Ltd | |
| Delivery point | Marine Ecological Solutions Ltd, 41 High Street, Menai Bridge, Ynys Mon, LL59 5EF, Wales | |
| info@marine-ecosol.com | ||
| URL | http://www.marine-ecosol.co.uk | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Thomson Unicomarine | |
| Delivery point | Business Centre East, Fifth Avenue, Letchworth, Hertfordshire, SG6 2TS | |
| enquiries@thomsonunicomarine.com | ||
| URL | http://www.thomsonunicomarine.com | |
| 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 2012. 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 | Database | |
| Format in which digital data can be provided for transfer | Delimited | |
| 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. | 2012-12-31 |
| 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 |