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Metadata: 2005 Scottish Natural Heritage (SNH) Loch Creran site condition monitoring survey of subtidal reefs
Abstract:
The purpose of this survey was to initiate site condition monitoring of the biogenic and rocky reefs of Loch Creran. This survey took place between the 11th July and 23rd December 2005, run by Heriot Watt University for NatureScot (Scottish Natural Heritage at time of survey). The extent and distribution of serpulid reefs was determined from observations by divers along 110 transects around the loch between 11th-25th July 2005. Detailed studies were also performed at four of the major serpulid reef sites in the loch; distribution of the serpulid reefs was examined with sidescan sonar between 6th-8th September 2005, reef density by video and the community of organisms associated with the habitat by diver survey of the reefs themselves and of the surrounding sediment was undertaken between 23rd-26th July 2005. The distribution and abundance of Modiolus was also examined along seven relocatable transects and, at one of the major mussel beds, the size structure of the population and associated community surveyed.
Data holder:
NatureScot (HQ Inverness)
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| Other details | ||
| Internal code | Internally assigned metadata identifier | 11468 |
| 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. | 2005 Scottish Natural Heritage (SNH) Loch Creran site condition monitoring survey of subtidal reefs |
| 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. | 9d4cb96450f3302fc7eeabbab70e7954 |
| Resource Identifier | This is the code assigned by the data owner. | GB-SCT-SNH-ME-000107-MRSNH01700000002-LC |
| 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 | 2005-07-11 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2005-12-23 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 200 |
| Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | urn:ogc:def:uom:EPSG::9001 |
| 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 purpose of this survey was to initiate site condition monitoring of the biogenic and rocky reefs of Loch Creran. This survey took place between the 11th July and 23rd December 2005, run by Heriot Watt University for NatureScot (Scottish Natural Heritage at time of survey). The extent and distribution of serpulid reefs was determined from observations by divers along 110 transects around the loch between 11th-25th July 2005. Detailed studies were also performed at four of the major serpulid reef sites in the loch; distribution of the serpulid reefs was examined with sidescan sonar between 6th-8th September 2005, reef density by video and the community of organisms associated with the habitat by diver survey of the reefs themselves and of the surrounding sediment was undertaken between 23rd-26th July 2005. The distribution and abundance of Modiolus was also examined along seven relocatable transects and, at one of the major mussel beds, the size structure of the population and associated community surveyed. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Bathymetric sidescan survey undertaken from 5th to 7th September 2005 using 117kHz transducers and motion reference unit and positional information from DGPS. Survey line spacing was chosen to give swath overlap and the acoustic data were continually monitored on the acquisition computer and a bottom coverage map produced in real-time in order to ensure full seafloor coverage. All depths are reduced to chart datum and all latitude and longitude positions are WGS84 datum. Survey output was a bathymetric grid with a horizontal resolution of 5m, from which contour maps were derived. Serpulid reefs (peripheral distribution survey) was undertaken to determine the extent and distribution of serpulid reefs by diver observations along 110 transects, approximately 250m apart, around the periphery of the loch between the 11th and 25th July 2005. Diver swam on a compass bearing perpendicular to the shore from chart datum to a nominal depth of 14m. Transect start and end points were fixed by DGPS from a surface vessel by recording the position of descent of diver and prior to ascent. Diver recorded depth at start and end of transect, depths of shallow and deep limits of reef distribution, and depth limits of medium and large reefs. Serpulid reefs (detailed studies at major sites) were undertaken using Sidescan sonar at four major serpulid reef sites in the loch between 6th and 8th September 2005. A 500kHz sidescan system was used. Track width of 35m to each side of the vessel was adopted and track spacing of 25m. Groundtruthing of sidescan mosaics was achieved by drop-down video. Video was recorded onto digital video tape, together with position and time of each frame using a video overlay system fed by data from DGPS. A diver video density survey to quantify Serpulid reef abundance from 23rd to 26th July 2005 was undertaken at four sites. Ten replicate video transects perpendicular to seabed contours, were worked by divers. The percentage of points overlying reef material gives an estimate of percentage cover of the seabed. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Moore, Harries, Tulbure, Cook, Saunders, Lyndon, Kamphausen, James (2020) The current status of serpulid reefs, horse mussel beds and flame shell beds in Loch Creran SAC and MPA; Moore, Saunders, Harries, Mair, Bates, Lyndon (2006) The establishment of site condition monitoring of the subtidal reefs of Loch Creran Special Area of Conservation |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | NDGO0005 | |
| Keyword title | data.gov.uk | |
| 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 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 | Zoobenthos taxonomic abundance | |
| 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 | 56.56 |
| East | The eastern-most limit of the data resource in decimal degrees | -5.24 |
| South | The southern-most limit of the data resource in decimal degrees | 56.507 |
| West | The western-most limit of the data resource in decimal degrees | -5.425 |
| Regional sea | Minches and Western Scotland | |
| 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 | NatureScot (HQ Inverness) | |
| data_supply@nature.scot | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Scottish Natural Heritage (SNH), Headquaters | |
| Individual name | Scottish Natural Heritage (SNH) | |
| Position name | Data Manager | |
| Phone | 01463 725000 | |
| data_supply@nature.scot | ||
| 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 | NatureScot (HQ Inverness) | |
| Position name | NatureScot Data Manager | |
| data_supply@nature.scot | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Scottish Natural Heritage (SNH), Headquaters | |
| Individual name | Scottish Natural Heritage (SNH) | |
| Position name | Data Manager | |
| Phone | 01463 725000 | |
| data_supply@nature.scot | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Data Archive for Seabed Species and Habitats (DASSH) | |
| Individual name | Esther Hughes | |
| Position name | Data Manager | |
| Phone | 01752 633102 | |
| dassh.enquiries@mba.ac.uk | ||
| 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`. | This survey recorded no species or biotope occurrences that NatureScot consider as sensitive; all records may therefore be released in response to requests covered by Environmental Information Regulations or Freedom of Information Regulations; additionally its re-use and dissemination is permissible under Open Government Licence terms. Any re-use of this data will acknowledge the copyright owner. |
| 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. | No restriction on public access |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Database (Marine Recorder) |
| Format in which digital data can be provided for transfer | Geographic Information System (shapefile) | |
| Format in which digital data can be provided for transfer | Image | |
| Format in which digital data can be provided for transfer | Documents (Published report) | |
| 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. | 2006-12-31 |
| 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. | 2025-06-03 |
| 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 |