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Metadata: 2015 Scottish Natural Heritage (SNH) Loch nam Madadh and Loch an Duin Site Condition Monitoring and Site Check survey
Abstract:
An purpose of this study was to carry out site condition monitoring (SCM) of the sandbanks feature of the Loch nam Madadh SAC and Site Checks of the remaining marine sedimentary and reef protected features (apart from saline lagoons). The principle aims were to: (1) identify any deterioration in the condition of the subtidal sandbanks feature; and (2) to form a judgement on its current condition. SCM was inaugurated in the SAC in 2004, which provided a baseline for the current study. The SCM work largely took the form of an extensive drop-down video survey and infaunal survey of the loch system, together with more detailed surveying of the sandbanks feature along transects at selected maerl bed sites. The site check work principally involved surveying along relocatable transects established at mudflat, reef and tidal rapids locations. A survey of the tidal rapids feature of the Loch an Duin SSSI and the Loch nam Madadh SSSI, both of which overlap with the SAC, was also undertaken.
Data holder:
NatureScot (HQ Inverness)
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| Other details | ||
| Internal code | Internally assigned metadata identifier | 11605 |
| 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. | 2015 Scottish Natural Heritage (SNH) Loch nam Madadh and Loch an Duin Site Condition Monitoring and Site Check 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. | e2da8c6dfcb6bd83e7d282e0c0e0a8fc |
| Resource Identifier | This is the code assigned by the data owner. | GB-SCT-SNH-ME-000292-MRSNH03000000018-LM |
| 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 | 2015-07-03 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2015-08-14 |
| 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. | An purpose of this study was to carry out site condition monitoring (SCM) of the sandbanks feature of the Loch nam Madadh SAC and Site Checks of the remaining marine sedimentary and reef protected features (apart from saline lagoons). The principle aims were to: (1) identify any deterioration in the condition of the subtidal sandbanks feature; and (2) to form a judgement on its current condition. SCM was inaugurated in the SAC in 2004, which provided a baseline for the current study. The SCM work largely took the form of an extensive drop-down video survey and infaunal survey of the loch system, together with more detailed surveying of the sandbanks feature along transects at selected maerl bed sites. The site check work principally involved surveying along relocatable transects established at mudflat, reef and tidal rapids locations. A survey of the tidal rapids feature of the Loch an Duin SSSI and the Loch nam Madadh SSSI, both of which overlap with the SAC, was also undertaken. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Collection of video data was predominantly carried out at sites using a dropdown video system from the vessel RV Serpula. At sites that could not be accessed from the boat, video material was collected from an inflatable using mini drop-down or by diver using a hand-held video camera. In total 73 sites that were examined in the in the 2004 baseline study were revisited during the period 4th-14th July 2015. At each accessible station the drop-down video camera was deployed from a drifting vessel for 2-3minutes, noting time, depths, and precise start and end positions using a dGPS attached to the vessel. Brief notes on substrates and biota were made at each station and entered into a pro forma with the video data. Video material from each station was subsequently processed in the laboratory, where possible employing the SACFOR scale of abundance. Where distinct changes in biotope were apparent at a site (rater than biotope mosaics), the video run was split into segments based on the video time code. The infaunal survey was undertaken at a subset of 20 of the 30 sites examined in the 2004 baseline survey, representative of the range of sublittoral biotopes identified within the SAC. Sites were selected for study during the period 11th-14th July 2015. A single 0.1m2 Van Veen grab sample was collected using the RV Serpula at 14 sites. A subsample of c.150ml sediment was taken from the surface of the grab contents for PSA analysis, and the remaining material sieved on a 1mm mesh screen. Sievings were retained in borax-buffered 5% formalin for further analysis. At the remaining 6 sites, an inflatable was used to deploy divers who collected 20cm sediment cores of diameter 10.3cm at each site. These cores were subsequently pooled and then processed as for the grab samples. At each site one 20cm long core of 5cm diameter was also collected for PSA analysis. Infauna from sievings were sorted, identified, and counted by Fugro EMU Ltd and sediment samples for grain size analysis were dry sieved in the laboratory using a nest of sieves at 0.5phi intervals. Maerl bed surveys were conducted by divers along a belt transect using MNCR phase 2 methodology to derive an overall estimate of live and dead maerl percentage cover. The same 4 maerl beds examined in 2004 were resurveyed in this 2015 survey. At each site 4 replicate core samples in areas of living maerl using a 10.3cm diameter corer to a depth of 20cm. macrobenthic fauna were extracted and analysed as above for grab samples, and an additional 20cm deep sediment core of 5cm diameter was taken for PSA using the above methodology for grab samples. Live and dead maerl cover was also assessed within the transect band using estimates of percentage cover within random 0.25m2 quadrats by two divers at 10 quadrats each. Site check surveys were carried out for mudflats, reefs, and tidal reefs at the same locations established in the 2004 baseline SCM survey. These site check surveys provided a more rapid and less detailed condition assessment between full SCM surveys of these habitat features in the SAC. Material collected from quadrat and dig-over stations at mudflats was retained for identification and quantification in the laboratory using the SACFOR scale. At reef sites, MNCR phase 2 surveying was carried out in all biotope zones identified along relocatable transects. Video and still imagery was collected along the whole transect from the intertidal to subtidal zones as a visual record of the habitats and biota, and included five replicate haphazardly located 0.25m2 photoquadrats within each intertidal zone. At tidal rapid sites the sequence of zones (biotopes) along each transect line were checked against those of the 2004 baseline survey. Still and video imagery were collected along each transect to provide a visual record of conditions and aid biotope assignment, and five replicate 0.25m2 photoquadrats were taken within each biotope zone. At each location an MNCR phase 2 survey was carried out in the most species-rich, tides-wept biotope. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Moore, C.G., Harries, D.B., Lyndon, A.R., Mair, J.M., Tulbure, K.W., Saunders, G.R, Grieve, R. & Brash, J. 2016. 2015 site condition monitoring and site check surveys of marine sedimentary and reef habitats in the Loch nam Madadh SAC, Loch nam Madadh SSSI and Loch an Duin SSSI. Scottish Natural Heritage Commissioned Report No. 923. |
| 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 | 57.6481 |
| East | The eastern-most limit of the data resource in decimal degrees | -7.0826 |
| South | The southern-most limit of the data resource in decimal degrees | 57.5851 |
| West | The western-most limit of the data resource in decimal degrees | -7.2234 |
| Regional sea | Minches and Western Scotland | |
| 44E2 | ||
| 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`. | 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 to 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 reports) | |
| 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. | 2016-01-01 |
| 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. | 2025-06-10 |
| 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 |