© 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
(ctrl+c)
Search for marine data across UK organisations
- API
- How-To
- About
- Contact MEDIN
- Share
Metadata: 2010 Scottish Natural Heritage (SNH) Sound of Canna survey for fan mussels and other MPA search features
Abstract:
The purpose of this benthic survey in the Sound of Canna was to conduct a detailed survey of seabed MPA search features within the sound, with particular emphasis on the population of fan mussels (Atrina fragilis). Survey work during August and September 2010 involved a drop-down video survey to capture footage of the seabed habitats at 121 stations; detailed in-situ, diver observations, which included mapping the extent of seagrass beds and the collection of infaunal core samples at 15 stations; and grab sampling at 23 stations within benthic sediment communities. The primary objective of the work was to provide an assessment of the current status of the fan mussels. The survey plans were developed from previous sampling records, Admiralty charts, and predictive habitat distribution maps covering this area. This sampling work was carried out in 3 phases. Video and grab sampling were undertaken in shallow water between the 5th-7th August by Aquatic Survey and Monitoring Ltd (ASML) and SNH from the survey vessel Lophelia, and in deep water between the 20th and 27th September by ASML and University Marine Biological Station on Millport (UMBSM) from the UMBSM research vessel RV Aora. Diver fieldwork was carried out by a team of 4 divers from the 28th August to 4th September from the vessel Lophelia. The images and infaunal samples, analysed under SNH contract by ASML and Identichaet, were used to describe the nature of the seabed in terms of the physical structure and the species assemblages.
Data holder:
NatureScot (HQ Inverness)
Click on the red button for resource contact details:
- Click on the red button for resource contact details
| Other details | ||
| Internal code | Internally assigned metadata identifier | 11304 |
| 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. | 2010 Scottish Natural Heritage (SNH) Sound of Canna survey for fan mussels and other MPA search features |
| 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. | 2dc30ee179b81a1a217a28194afb4d9d |
| Resource Identifier | This is the code assigned by the data owner. | GB-SCT-SNH-ME-000126-MRSNH02200000002-SC |
| 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 | 2010-08-05 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2010-09-27 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 500 |
| 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 in the Sound of Canna was to conduct a detailed survey of seabed MPA search features within the sound, with particular emphasis on the population of fan mussels (Atrina fragilis). Survey work during August and September 2010 involved a drop-down video survey to capture footage of the seabed habitats at 121 stations; detailed in-situ, diver observations, which included mapping the extent of seagrass beds and the collection of infaunal core samples at 15 stations; and grab sampling at 23 stations within benthic sediment communities. The primary objective of the work was to provide an assessment of the current status of the fan mussels. The survey plans were developed from previous sampling records, Admiralty charts, and predictive habitat distribution maps covering this area. This sampling work was carried out in 3 phases. Video and grab sampling were undertaken in shallow water between the 5th-7th August by Aquatic Survey and Monitoring Ltd (ASML) and SNH from the survey vessel Lophelia, and in deep water between the 20th and 27th September by ASML and University Marine Biological Station on Millport (UMBSM) from the UMBSM research vessel RV Aora. Diver fieldwork was carried out by a team of 4 divers from the 28th August to 4th September from the vessel Lophelia. The images and infaunal samples, analysed under SNH contract by ASML and Identichaet, were used to describe the nature of the seabed in terms of the physical structure and the species assemblages. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This subtidal seabed data from the Sound of Canna was collected by ASML and SNH between the 5th August and 27th September 2010. The benthic survey comprised several phases: A survey of shallow coastal waters (to approximately 35m) from a small boat using a lightweight drop-down video system; targeted fine resolution in-situ, diver sampling; a survey of the deeper parts of the sound using a heavier drop-down video camera system capable of operating in over 200 m of water; and grab sampling within the range of sediment communities present. The survey vessels used for this survey work were Lophelia and RV Aora. Video images were obtained from the lightweight drop-down video camera system deployed just above the seabed. The system is based on a Sony 3CCD digital video camera and is designed to drift along the seabed. SNH's mini ROV was deployed in an effort to look at the vertical cliff walls where the DDV camera system could not be used and the walls were beyond diving depths. The deep underwater video survey was undertaken in conjunction with the grab sampling. This camera system was a Kongsberg-Simrad colour UW video camera and two Versabeam 500w lights. Date and time are overlaid onto the video signal. Long video tows were taken due to the length of time required to deploy the system in deep water - the longest video sample approximately 42mins. The deep water video camera system was not a digital system and the quality of footage is lower than that obtained using shallow water equipment. Infaunal samples were collected using a 0.1m2 Day Grab. The distribution of grab samples were selected based on the video survey to ensure good coverage across the sound and target specific biotopes of interest. Each infaunal sample was processed onboard. Only full grabs were retained and no replicates were taken. A sub-sample was taken for sediment grain size distribution analysis and organic matter content determination. Sieved residue was fixed with a 15% formal saline solution. Dive surveying was undertaken using MNCR-style phase 2 semi-quantitative techniques. The biological information recorded by divers was supplemented by digital video and digital SLR photography. All infaunal processing was carried out in accordance with NMBAQC guidelines. Analyses of the video footage was undertaken by ASML, 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. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Howson, C. M., Clark, L., Mercer, T. S. & James, B. (2012). Marine biological survey to establish the distribution and status of fan mussels Atrina fragilis and other Marine Protected Area (MPA) search features within the Sound of Canna, Inner Hebrides. Scottish Natural Heritage Commissioned Report No. 438. |
| 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 | 57.09 |
| East | The eastern-most limit of the data resource in decimal degrees | -6.313 |
| South | The southern-most limit of the data resource in decimal degrees | 57 |
| West | The western-most limit of the data resource in decimal degrees | -6.55 |
| Regional sea | Minches and Western Scotland | |
| 43E3 | ||
| 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 | Aquatic Survey & Monitoring Ltd. | |
| Position name | Data manager | |
| tom@aquatic-environments.co.uk | ||
| 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 occurences 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 permissable 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 (Marine Recorder) |
| Format in which digital data can be provided for transfer | Documents (Published report) | |
| Format in which digital data can be provided for transfer | Geographic Information System (shapefiles) | |
| 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. | 2012-12-31 |
| 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. | 2025-06-04 |
| 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 |