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Metadata: Intertidal Monitoring of Sediment Flats in Menai Strait and Conwy Bay Special Area of Conservation (SAC) in 2008
Abstract:
Menai Strait and Conwy Bay Special Area of Conservation (SAC) is designated for five Annex 1 habitats: Sandbanks which are slightly covered by sea water all the time, Mudflats and sandflats not covered by seawater at low tide, Reefs, Large shallow inlets and bays and Submerged or partially submerged sea caves. Of these mudflats, sandflats and reefs are the main habitats of interest within intertidal areas of Menai Strait and Conwy Bay SAC. Conservation objectives for these habitats are given in the Regulation 33 advice for the SAC. The overriding objective of the survey was to establish the reference condition for the Menai Strait and Conwy Bay SAC and develop monitoring stations for recording the level of natural change. This would enable the development of conservation objectives for the appropriate management of the features of the SAC.
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 | 8746 |
| 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 Sediment Flats in Menai Strait and Conwy Bay Special Area of Conservation (SAC) in 2008 |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | 2008 CCW / ASML Menai Strait and Conwy Bay SAC Foryd Bay survey MRCCW16300000019 |
| 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_DS112290 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313132323930 |
| 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 | 2008-06-02 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2008-06-06 |
| 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. | Menai Strait and Conwy Bay Special Area of Conservation (SAC) is designated for five Annex 1 habitats: Sandbanks which are slightly covered by sea water all the time, Mudflats and sandflats not covered by seawater at low tide, Reefs, Large shallow inlets and bays and Submerged or partially submerged sea caves. Of these mudflats, sandflats and reefs are the main habitats of interest within intertidal areas of Menai Strait and Conwy Bay SAC. Conservation objectives for these habitats are given in the Regulation 33 advice for the SAC. The overriding objective of the survey was to establish the reference condition for the Menai Strait and Conwy Bay SAC and develop monitoring stations for recording the level of natural change. This would enable the development of conservation objectives for the appropriate management of the features of the SAC. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The Grid Maker tool in the MapInfo GIS package was used to create a grid of 47 stations across the defined survey area, with a north-south distance of 200 m between points and an east-west distance of 330 m. This gave the most appropriate coverage of the flats to enable sampling of the range of biotopes on the Phase 1 map with the manpower available. On site, each survey pair was allocated a section of the grid to survey and GPS units were used to navigate to each station in turn. Where possible, a single 0.01 m2 core sample was taken at each survey station. If the station happened to lie on a rocky outcrop, in a drainage channel or in a pool greater than ~5 cm deep, then a core sample was not taken. The core sample was sieved using a 0.5 mm mesh sieve in a nearby pool. The contents of the sieve were then inspected closely, with the aid of a magnifying glass. All visible animals were identified and counted, to the extent achievable, by the most experienced surveyor in the pair. Phase 1 surveys of intertidal habitats in the SAC were carried out in the SAC between 1999 and 2003 (Brazier et al. 2007), providing detailed mapping of the intertidal biotopes with some information on characterizing species. Considerable historical data exists on the intertidal habitats and communities present at many sites in the SAC, including Y Foryd, Traeth Lafan and the tide-swept boulder shores of the Menai Strait. Methodological trials and surveys, designed for the purposes of SAC monitoring, have been carried out in recent years. Of particular relevance to this report are the surveys of tide-swept boulder biotopes at sites on the Menai Strait (Boyes and Allen 2004, Mazik et al. 2005) and a report of boulder monitoring stations established by ASML/CCW in 2007 (Moore 2008), and a survey of the Zostera noltii bed in Y Foryd (Boyes, Proctor and Mitchell 2004). All survey completed by professional and experienced marine field surveyors. Data quality and confidence considered high. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitats and biotopes |
| 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 | sediment flats | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Infauna | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | zostera marina | |
| 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 | seagrasses (see also potamogetonaceae and hydrocharitaceae) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | eelgrass | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | intertidal | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | zostera angustifolia | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitat extent | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos taxonomy-related counts | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos generic abundance | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 53.28790562 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.06375467 |
| South | The southern-most limit of the data resource in decimal degrees | 53.09414966 |
| West | The western-most limit of the data resource in decimal degrees | -4.38040387 |
| Regional sea | benthic boundary layer | |
| SIR YNYS MON - ISLE OF ANGLESEY | ||
| 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 | CCW Marine Monitoring Team | |
| 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 | Aquatic Survey and Monitoring Ltd (ASML) | |
| Delivery point | Whitfield Brow, Bollihope, Frosterley, Weardale, Co. Durham, DL13 2SZ, England | |
| tom@aquatic-environments.co.uk | ||
| URL | http://www.marineseen.com/aquatic_survey_and_monitoring.htm | |
| 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 Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Documents |
| 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. | 2010-06-30 |
| 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 | |