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Metadata: 2011 Scottish Natural Heritage (SNH) Lochs Linnhe, Etive, Leven and Eil broadscale validation benthic camera and grab survey
Abstract:
The purpose of this benthic survey of Lochs Linnhe, Etive, Leven and Eil was to carry out a broadscale validation survey of the multiple MPA search features historically recorded within the survey area and to record new instances of these and assess previously identified Priority Marine Features (PMFs) and record any new instances of PMFs. Surveying in the Linnhe sea lochs system was split into two parts, A and B. Part A is a coarse grained characterisation of the search feature distribution, carried out by the Scottish Association for Marine Science (SAMS), incorporated remote benthic sampling using a combination of grab and video (DDV and ROV). Part B was chiefly to examine discrete beds of specific PMFs, undertaken by Heriot-Watt University (HWU), using divers to provide detailed survey analyses on targeted high priority features, shore based survey methods and drop-down video. This study aimed to determine whether PMFs and MPA search features were still present at previously documented locations. A remote video and grab survey was conducted by SAMS for SNH between the 3rd and 26th August 2011 to collect detailed biological information on the seabed species and habitat features present. Drop-down video drift tows were undertaken at 181 sites within the Linnhe sea lochs system study area. The images, analysed under SNH contract by SAMS, were used to describe the nature of the seabed in terms of the physical structure and the species assemblages. An ROV survey was undertaken at 23 sites in Loch Linnhe, generally targeting locations where the northern featherstar (Swiftia pallida) had been recorded, and or where the proximity of steep underwater cliffs or pinnacles made deployment of the drop-down video problematic. Quantitative infaunal grab sampling was undertaken at 37 sites and multigrabs at 12 sites in Lochs Linnhe and Eil for marcofauna analysis and PSA. The vessels RV Seol Mara and SV Sir John Murray were used for this survey. Part B was chiefly to examine discrete beds of specific PMFs, undertaken by Heriot-Watt University (HWU), using divers to provide detailed survey analyses on targeted high priority features, shore based survey methods and drop-down video. This study aimed to determine whether PMFs and MPA search features were still present at previously documented locations. A drop-down video and diver survey was conducted by HWU for SNH between the 18th June and 4th November 2011 to collect detailed biological information on the seabed species and habitat features present. Drop-down video drift tows were undertaken at 38 sites within the Linnhe sea lochs system study area from the RV Serpula, principally as a component of the localised dive surveys of flame shell and horse mussel beds. The images, analysed under SNH contract by HWU, were used to describe the nature of the seabed in terms of the physical structure and the species assemblages. Localised surveys (combination of DDV, dive and diver MNCR phase-two) were carried out at 9 sites to assess the distribution, extent and condition of the high priority PMF MPA search features. The vessels RV Seol Mara and RV Serpula were used for this survey. This work was funded by Marine Scotland as part of the Scottish MPA project.
Data holder:
NatureScot (HQ Inverness)
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| Other details | ||
| Internal code | Internally assigned metadata identifier | 11386 |
| 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. | 2011 Scottish Natural Heritage (SNH) Lochs Linnhe, Etive, Leven and Eil broadscale validation benthic camera and grab survey |
| 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. | 60a8373faccd0547200374397a269e7c |
| Resource Identifier | This is the code assigned by the data owner. | GB-SCT-SNH-ME-000152-MRSNH02600000002-LELE |
| 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 | 2011-06-18 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2011-11-04 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 1000 |
| 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 benthic survey of Lochs Linnhe, Etive, Leven and Eil was to carry out a broadscale validation survey of the multiple MPA search features historically recorded within the survey area and to record new instances of these and assess previously identified Priority Marine Features (PMFs) and record any new instances of PMFs. Surveying in the Linnhe sea lochs system was split into two parts, A and B. Part A is a coarse grained characterisation of the search feature distribution, carried out by the Scottish Association for Marine Science (SAMS), incorporated remote benthic sampling using a combination of grab and video (DDV and ROV). Part B was chiefly to examine discrete beds of specific PMFs, undertaken by Heriot-Watt University (HWU), using divers to provide detailed survey analyses on targeted high priority features, shore based survey methods and drop-down video. This study aimed to determine whether PMFs and MPA search features were still present at previously documented locations. A remote video and grab survey was conducted by SAMS for SNH between the 3rd and 26th August 2011 to collect detailed biological information on the seabed species and habitat features present. Drop-down video drift tows were undertaken at 181 sites within the Linnhe sea lochs system study area. The images, analysed under SNH contract by SAMS, were used to describe the nature of the seabed in terms of the physical structure and the species assemblages. An ROV survey was undertaken at 23 sites in Loch Linnhe, generally targeting locations where the northern featherstar (Swiftia pallida) had been recorded, and or where the proximity of steep underwater cliffs or pinnacles made deployment of the drop-down video problematic. Quantitative infaunal grab sampling was undertaken at 37 sites and multigrabs at 12 sites in Lochs Linnhe and Eil for marcofauna analysis and PSA. The vessels RV Seol Mara and SV Sir John Murray were used for this survey. Part B was chiefly to examine discrete beds of specific PMFs, undertaken by Heriot-Watt University (HWU), using divers to provide detailed survey analyses on targeted high priority features, shore based survey methods and drop-down video. This study aimed to determine whether PMFs and MPA search features were still present at previously documented locations. A drop-down video and diver survey was conducted by HWU for SNH between the 18th June and 4th November 2011 to collect detailed biological information on the seabed species and habitat features present. Drop-down video drift tows were undertaken at 38 sites within the Linnhe sea lochs system study area from the RV Serpula, principally as a component of the localised dive surveys of flame shell and horse mussel beds. The images, analysed under SNH contract by HWU, were used to describe the nature of the seabed in terms of the physical structure and the species assemblages. Localised surveys (combination of DDV, dive and diver MNCR phase-two) were carried out at 9 sites to assess the distribution, extent and condition of the high priority PMF MPA search features. The vessels RV Seol Mara and RV Serpula were used for this survey. This work was funded by Marine Scotland as part of the Scottish MPA project. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This subtidal seabed data from around Lochs Linnhe, Etive, Leven and Eil was collected by SAMS and SNH between the 3rd and 26th August 2011 onboard either the vessel RV Seol Mara or SV Sir John Murray. Survey stations were selected by Dr Colin Moore, HWU, utilising previous survey data indicating the presence of PMFs and MPA search features. Video images were obtained from a total of 181 drop-down video drift tows deployed just above the seabed for 5-10mins. DDV surveying was carried out in Lochs Etive, Leven and parts of Loch Linnhe onboard the RV Seol Mara and from the SV Sir John Murray in Lochs Eil and Linnhe using a Seatronics frame mounted with twin seaLED 1067 lux LED lights and a Konsberg OE14-366 colour zoom camera. Video tow duration was approximately between 4-7 min in length. No still photographs were taken on this survey. Positional, depth and time data are available for the start and end of video runs. Analyses of the video footage was undertaken by SAMS, contracted by SNH, to describe the physical structure and species assemblages present. Based on the physical and biological attributes, biotopes were allocated. Species present were identified and quantified using the semi-quantitative MNCR SACFOR scale, as far as possible. Where video runs traversed a sequence of biotopes, the runs are split into corresponding segments with the transition points recorded using time. Segmentation of runs was not practicable in the case of mosaics of recurring biotopes, in which case all biotopes observed were simply listed. Runs and run segments were assessed for, and catagorised by, the presence PMFs and MPA search features. The ROV survey was performed entirely from the SV Sir John Murray using an Outland 1000 ROV system at a total of 23 sites in Loch Linnhe, selected by SNH to target likely or recorded Swiftia locations. Quality Assurance was performed on 10% of video data from DDV and ROV sites by a third person. Quantitative infaunal grab and multigrab samples for macrofauuna analysis and PSA were taken from the RV Seol Mara and SV Sir John Murray. 37 benthic faunal samples were collected using a 0.1m2 Van Veen grab or a 0.1m2 Day Grab, then seived onboard over a 1mm mesh and the residue preserved for further analysis in 10% buffered formalin solution. A sub-sample was taken from each grab for PSA analysis. The multigrab survey was undertaken at 12 stations in Lochs linnhe and Eil onboard the SV Sir John Murray to determine the presence of Arctica islandica, Glossus humanus and Modiolus modiolus. Using a Day grab, 5 infaunal samples were obtained at each station. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Nickell, T,D., Hughes, D.J, Hausrath, J., Gontarek, S. and Clark, L. 2013. The distribution of Priority Marine Features and MPA search features within Lochs Linnhe, Eil, Leven and Etive: a broadscale validation survey (Part A). Scottish Natural Heritage Commissioned Report No. 501. Moore, C. G., Harries, D. B. & Trigg, C. (2012). The distribution of selected MPA search features within Lochs Linnhe, Etive, Leven and Eil: a broadscale validation survey (Part B). Scottish Natural Heritage Commissioned Report N |
| 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 | 56.8561 |
| East | The eastern-most limit of the data resource in decimal degrees | -4.9825 |
| South | The southern-most limit of the data resource in decimal degrees | 56.3659 |
| West | The western-most limit of the data resource in decimal degrees | -5.6891 |
| Regional sea | Minches and Western Scotland | |
| 41E4 | ||
| 42E4 | ||
| 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 owner is the person or organisation that owns the resource. | owner |
| Organisation name | Scottish Government | |
| Individual name | Marine Directorate Scotland | |
| Position name | (formally Marine Science Scotland) | |
| Phone | +44 (0)131 556 8400 | |
| marinescotland@gov.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 originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Scottish Government | |
| Individual name | Marine Directorate Scotland | |
| Position name | (formally Marine Science Scotland) | |
| Phone | +44 (0)131 556 8400 | |
| marinescotland@gov.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`. | Not for navigational use; This survey recorded no species or biotope occurrences that SNH 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 restrictions on public access |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Database |
| Format in which digital data can be provided for transfer | Documents | |
| Format in which digital data can be provided for transfer | Geographic Information System | |
| Format in which digital data can be provided for transfer | Image | |
| 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. | 2013-12-31 |
| 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. | 2025-06-05 |
| 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 |