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Metadata: Countryside Council for Wales (CCW) Acoustic Habitat Survey (multibeam) of Habitat and Feature Distribution in Pembrokeshire Marine Candidate Special Area of Conservation (cSAC)
Abstract:
Pembrokeshire Marine candidate Special Area of Conservation (cSAC) is a large area including open coast and the Milford Haven Waterway that has been identified as being of European marine conservation importance. Features of this site include marine species and seabed habitats. The purpose of the Acoustic Habitat Survey was to provide information on the nature and characteristics of the seabed within defined areas of the Pembrokeshire coastline. The dataset contains the results of a project to gather topographical and seabed characterisation information to improve the knowledge of the site and to aid in future site management and feature monitoring. Primary focus- areas of topographical distinction such as reefs, other hard substrata and sandbanks. Areas covered in the Pembrokeshire cSAC survey include; Skomer, Grassholm, Hats & Barrels, Welshmans Bay, East side of Skokholm, St Ann's Head, Milford Approaches and the majority of the Milford Haven estuary upstream as far as Picton Point.
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 | 8636 |
| 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. | Countryside Council for Wales (CCW) Acoustic Habitat Survey (multibeam) of Habitat and Feature Distribution in Pembrokeshire Marine Candidate Special Area of Conservation (cSAC) |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Longdin and Browning Acoustic Habitat Survey of Pembrokeshire Marine SAC, Arolwg acwstig o ddosbarthiad cynefinoedd a nodweddion yn yACA Morol Sir Benfro, Multi beam survey Pembs SAC. |
| 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_DS110024 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313130303234 |
| 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 | 2001-08-24 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2001-09-14 |
| 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. | Pembrokeshire Marine candidate Special Area of Conservation (cSAC) is a large area including open coast and the Milford Haven Waterway that has been identified as being of European marine conservation importance. Features of this site include marine species and seabed habitats. The purpose of the Acoustic Habitat Survey was to provide information on the nature and characteristics of the seabed within defined areas of the Pembrokeshire coastline. The dataset contains the results of a project to gather topographical and seabed characterisation information to improve the knowledge of the site and to aid in future site management and feature monitoring. Primary focus- areas of topographical distinction such as reefs, other hard substrata and sandbanks. Areas covered in the Pembrokeshire cSAC survey include; Skomer, Grassholm, Hats & Barrels, Welshmans Bay, East side of Skokholm, St Ann's Head, Milford Approaches and the majority of the Milford Haven estuary upstream as far as Picton Point. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Once mobilisation and all calibrations had been conducted, survey work could proceed. The same basic method of survey was used throughout the whole survey area. Throughout the project the vessel was moored in Milford Dock. When leaving the dock, or while alongside the Mackerel pontoon outside the dock entrance, a course check was made on the navigation systems. All transit time was put to full use by conducting survey to and from site. Once all systems were found to be operating correctly a sound velocity profile was observed. The results of the profile were entered into both the multibeam system and the single beam sounder. Once the vessel arrived at the proposed working location for the day another S/V profile was observed. The results were entered into the relevant equipment. Sidescan sonar was required in the Marine Nature Reserve (MNR), now classified as Marine Conservation Zone (MCZ). This was observed at the same time as the Multibeam data. As a large proportion of this area was relatively shallow the sidescan was towed behind the vessel on a fairly short tow cable. The offset of the fish behind the Central Reference Point (CRP) of the vessel was applied in the Sidescan data capture system (Octopus 460). |
| 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 | habitat distribution | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | habitats (see also specific types of habitats) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Pembrokeshire (county pre 1974)( county since 4/96) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | marine and freshwater inventory | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | feature distribution | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Pembrokeshire Marine cSAC | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | feature | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | bathymetry | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | multibeam | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | acoustic observation (acoustic monitoring) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bathymetric survey | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitat characterisation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitat extent | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 52.08036396 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.51420633 |
| South | The southern-most limit of the data resource in decimal degrees | 51.48042269 |
| West | The western-most limit of the data resource in decimal degrees | -5.50000584 |
| Regional sea | benthic boundary layer | |
| 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 | Longdin and Browning (Surveys) Limited | |
| Delivery point | Cherry Tree House, Carmarthen Road, Swansea, SA1 1HE | |
| email@longdin.co.uk | ||
| URL | http://www.longdin.co.uk/ | |
| 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 2002 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. |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Geographic Information System |
| 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. | 2002-02-28 |
| 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_DS121633 | |