© 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
Search for marine data across UK organisations
- API
- How-To
- About
- Contact MEDIN
- Share
Metadata: 2009, Emu LImited, Sheringham Shoal, Benthic Ecology and Sabellaria Study
Abstract:
The principal objective of the survey was ascertain whether Sabellaria spinulosa reef had built up in the windfarm turbine areas, or in the associated cable route since previous surveys undertaken in 2008. The survey work presented here found no evidence to suggest that Sabellaria spinulosa reef had built up during that time. All of the sites found to support the biotope SS.SBR.PoR.SspiMx previously were found to support the same biotope. These were amongst 10 of the 16 sites surveyed which have remained the same as those assigned previously. Of the seven sites within the turbine area (6, 18, 21, 26, 30, 31 and 47) four have been assigned different biotopes; these are 6, 26, 30 and 47. For sites 6 and 26 the change is relatively minor between related biotopes. For sites 30 and 47 the apparent change in sediment from coarse to fine sands is more interesting. However, the same change was also seen at site 7 well outside the windfarm area and approximately three kilometers east of the main cable route. Hence these changes appear to be natural in the habitats prevailing in the area. Site 10 was the only location found previously for the SS.SCS.ICS.MoeVen biotope but is now, again uniquely, SS.SCS.ICS.Glap. These two biotopes are related, with the former grading into the latter where the sediment is subject to continual disturbance. Of the 44 video sites analysed, 42 did not register a score for either elevation or patchiness. Neither of the remaining 2 locations, site 4 and 21, scored for both elevation and patchiness. Site 4 had a score of ‘medium’ for patchiness, but the elevation was less than 1cm illustrating this was a thin crust only and would need to be more than twice this measure to register a score. Although not part of the grab survey an extra grab sample was taken at this location and inspected during the survey thus reinforcing the elevation measure here for those pebbles encrusted with Sabellaria spinulosa. Site 21 measured ‘low’ for elevation, but this assessment was based on a single loose pebble with an estimated tube length of 3cm. The grab samples at site 21 show the numbers of Sabellaria to be about 200m-2 well below Hendrick and Foster-Smith (2006) requirement of 500m-2 for a ‘low-grade’ reef score. Furthermore as the UK Biodiversity Group (1999) notes, crusts may only be seasonal features, easily broken up by winter storms and then reforming the following spring. As such they are ephemeral constructs only, unable to provide stable biogenic habitats for associated species and therefore cannot be considered true Sabellaria spinulosa reefs. The cable route video study identified three biotopes that are typical of robust sand and gravelly sand habitats, primarily supporting Pomatoceros sp. These findings are consistent with data results from previous surveys.
Data holder:
Scira Offshore Energy Ltd
| Other details | ||
| Internal code | Internally assigned metadata identifier | 5447 |
| 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. | 2009, Emu LImited, Sheringham Shoal, Benthic Ecology and Sabellaria Study |
| 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. | d33f6bb16e3f567e969ae0eedc40e269 |
| Resource Identifier | This is the code assigned by the data owner. | 4842 |
| 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. | series |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2009-11-03 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2009-12-21 |
| Vertical extent (min) | A positive or negative decimal number, for example, the shallowest depth recorded if subtidal, or, if intertidal, the lowest point recorded. | -24.5 |
| Vertical extent (max) | A positive or negative decimal number, for example, the deepest depth recorded if subtidal, or, if intertidal, the highest point recorded. | -1.5 |
| Vertical extent reference | This descibes the vertical coordinate reference system as referred to in the EPSG register of geodetic parameters. (epsg-registry.org) | Chart Datum at Cromer |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 0.1 |
| Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#m |
| 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 principal objective of the survey was ascertain whether Sabellaria spinulosa reef had built up in the windfarm turbine areas, or in the associated cable route since previous surveys undertaken in 2008. The survey work presented here found no evidence to suggest that Sabellaria spinulosa reef had built up during that time. All of the sites found to support the biotope SS.SBR.PoR.SspiMx previously were found to support the same biotope. These were amongst 10 of the 16 sites surveyed which have remained the same as those assigned previously. Of the seven sites within the turbine area (6, 18, 21, 26, 30, 31 and 47) four have been assigned different biotopes; these are 6, 26, 30 and 47. For sites 6 and 26 the change is relatively minor between related biotopes. For sites 30 and 47 the apparent change in sediment from coarse to fine sands is more interesting. However, the same change was also seen at site 7 well outside the windfarm area and approximately three kilometers east of the main cable route. Hence these changes appear to be natural in the habitats prevailing in the area. Site 10 was the only location found previously for the SS.SCS.ICS.MoeVen biotope but is now, again uniquely, SS.SCS.ICS.Glap. These two biotopes are related, with the former grading into the latter where the sediment is subject to continual disturbance. Of the 44 video sites analysed, 42 did not register a score for either elevation or patchiness. Neither of the remaining 2 locations, site 4 and 21, scored for both elevation and patchiness. Site 4 had a score of ‘medium’ for patchiness, but the elevation was less than 1cm illustrating this was a thin crust only and would need to be more than twice this measure to register a score. Although not part of the grab survey an extra grab sample was taken at this location and inspected during the survey thus reinforcing the elevation measure here for those pebbles encrusted with Sabellaria spinulosa. Site 21 measured ‘low’ for elevation, but this assessment was based on a single loose pebble with an estimated tube length of 3cm. The grab samples at site 21 show the numbers of Sabellaria to be about 200m-2 well below Hendrick and Foster-Smith (2006) requirement of 500m-2 for a ‘low-grade’ reef score. Furthermore as the UK Biodiversity Group (1999) notes, crusts may only be seasonal features, easily broken up by winter storms and then reforming the following spring. As such they are ephemeral constructs only, unable to provide stable biogenic habitats for associated species and therefore cannot be considered true Sabellaria spinulosa reefs. The cable route video study identified three biotopes that are typical of robust sand and gravelly sand habitats, primarily supporting Pomatoceros sp. These findings are consistent with data results from previous surveys. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | All 16 grab sample sites were surveyed. Of the sites sampled, a total of six sites included one or more replicates that were accepted as low sample volume (sites 6 (3), 11 (2), 13 (1), 21 (1), 24 (2), and 54 (3)). Between five and six attempts were made at these sites in order to obtain larger samples. To address concerns about the quality of the data produced by these samples, comparative effects of sample volume were conducted as part of the PRIMER analysis (see Appendix X). This concluded that the sample volumes collected were a reflection of the seabed character and therefore were an appropriate reflection of the habitats and faunal communities present. Underwater visibility at site 54 was very poor due to high levels of suspended sediment at the seabed. At all other video sites, the underwater visibility conditions were poor, but suitable for collection of video footage and stills using the ELViS frame. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Presentation type: digital representation of a primarily textual item (can contain illustrations also) Spatial representation type: 003 Origin: Emu Ltd |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Pre-Construction monitoring |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Offshore Cable Corridor | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Renewable Energy Lease area | |
| 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 | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fauna abundance per unit area of the bed | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| Keyword title | MEDIN | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| Keyword title | MEDIN | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 53.174333255759 |
| East | The eastern-most limit of the data resource in decimal degrees | 1.2244886798664 |
| South | The southern-most limit of the data resource in decimal degrees | 53.096122217091 |
| West | The western-most limit of the data resource in decimal degrees | 1.0742216214591 |
| 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 | Scira Offshore Energy Ltd | |
| Position name | COWRIE uploader | |
| Phone | 0044(0) 203 204 3200 | |
| Fax | N/A | |
| Delivery point | One Kingdom Street, London, W2 6BD, United Kingdom | |
| info@scira.co.uk | ||
| URL | www.scira.co.uk | |
| 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 | Scira Offshore Energy Ltd | |
| Position name | COWRIE uploader | |
| Phone | 0044(0) 203 204 3200 | |
| Fax | N/A | |
| Delivery point | One Kingdom Street, London, W2 6BD, United Kingdom | |
| info@scira.co.uk | ||
| URL | www.scira.co.uk | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Scira Offshore Energy Ltd | |
| Position name | COWRIE uploader | |
| Phone | 0044(0) 203 204 3200 | |
| Fax | N/A | |
| Delivery point | One Kingdom Street, London, W2 6BD, United Kingdom | |
| info@scira.co.uk | ||
| URL | www.scira.co.uk | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/1942/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
| Dataset constraints | ||
| 21 Conditions for Access and Use - Use limitation | 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. | no conditions apply |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | |
| 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. | 2009-04-14 |
| Date of creation | The date that the resource was created. | 2009-11-03 |
| 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. | 2011-06-28 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata Standard |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.5 |