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Metadata: 2004 Scottish Natural Heritage (SNH) Loch Maddy SAC site condition monitoring inauguration survey
Abstract:
Loch Maddy has been established as a Special Area of Conservation (SAC) as it is considered to provide outstanding examples of the following qualifying features: - large shallow inlet and bays; - saline lagoons; - intertidal and sublittoral reefs; - intertidal sediment flats; - subtidal sandbanks. It is a mandatory requirement of SACs that monitoring of a site is carried out (site condition monitoring) to identify changes in the condition of the features for which the SAC has been established and the purpose of the current study was to initiate such a monitoring programme. This was done to establish a baseline biological data set that would facilitate the assessment of the condition of the habitats in the future and to allow a judgement to be formed on the current condition of these habitats. The main approach taken to achieve these objectives was to perform a drop-down video survey of the biotopes of the SAC, concentrating on the sublittoral sediments, to characterize the infauna of the main sediment biotopes by means of grab and core sampling and to perform surveys of the epibiota of rock, lagoon, maerl and Zostera biotopes along relocatable transects.
Data holder:
NatureScot (HQ Inverness)
Click on the red button for resource contact details:
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| Other details | ||
| Internal code | Internally assigned metadata identifier | 11499 |
| 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. | 2004 Scottish Natural Heritage (SNH) Loch Maddy SAC site condition monitoring inauguration 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. | ae184f52f8d88c337d42dcfdae90783f |
| Resource Identifier | This is the code assigned by the data owner. | GB-SCT-SNH-ME-000097-MRSNH01100000014-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 | 2004-05-25 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2004-08-05 |
| 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. | Loch Maddy has been established as a Special Area of Conservation (SAC) as it is considered to provide outstanding examples of the following qualifying features: - large shallow inlet and bays; - saline lagoons; - intertidal and sublittoral reefs; - intertidal sediment flats; - subtidal sandbanks. It is a mandatory requirement of SACs that monitoring of a site is carried out (site condition monitoring) to identify changes in the condition of the features for which the SAC has been established and the purpose of the current study was to initiate such a monitoring programme. This was done to establish a baseline biological data set that would facilitate the assessment of the condition of the habitats in the future and to allow a judgement to be formed on the current condition of these habitats. The main approach taken to achieve these objectives was to perform a drop-down video survey of the biotopes of the SAC, concentrating on the sublittoral sediments, to characterize the infauna of the main sediment biotopes by means of grab and core sampling and to perform surveys of the epibiota of rock, lagoon, maerl and Zostera biotopes along relocatable transects. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Drop-down video, grab and core sampling, and relocatable transects were the three main methods used in this SCM baseline survey of Loch nam Madadh SAC features - sublittoral sediments, sediment biotope infauna, and epibiota of rock, lagoon, maerl, and Zostera biotopes. The fieldwork was performed in two phases: 25th May to 5th June and 17th July to 5th August 2004. Transect work was performed at 6 lagoon sites in a band 2m either side of the tape by two surveyors, one on each side, intertidally and subtidally. Transects were split into a series of zones defined by differences in composition of the biological community/substrate type. Within each zone the MNCR scale of abundance was used to record substrate type and biota within each zone. Video footage and digital stills were taken intertidally and subtidally to make representative visual recordings of the transect zones, with five replicate photoquadrats (0.25m2) taken intertidally. Mudflats were surveyed at two sites using the same method as described for lagoons. Additionally, at each survey station along the transect, eight replicate core samples of 10.3cm diameter and 20cm length were taken at random and pooled. Four replicate pooled samples were taken at one station of particular interest on each transect. Sediment was sieved and macrobenthos preserved for laboratory analysis. 1m2 dig-overs were used to supplement the abundance of macrobenthic infauna from core samples in-situ. At five rocky reef sites, transect surveys were performed from the top of the shore to subtidal sediment plains using the same methodology as for lagoons. Diving was carried out from the SNH RIB Aphrodite. At some sites the densities of Swiftia pallida and Caryophyllia smithii was determined. At tidal narrows, surveys were performed along transects at three tidal rapid sites. Drop-video work was done by SNH from the RIB Aphrodite at 73 sites to provide information on the distribution and diversity of the subtidal biotopes in the non-lagoonal region of the SAC. At each station the video was deployed from a drifting vessel for approximately 3 minutes. Time, depth, and precise start and end positioning were recorded for each drift. Video material from each station were processed in the laboratory, using the SACFOR scale of abundance where possible, and notes made on substrate and biota. Surveys of maerl beds at 4 sites were based on drop-down video survey footage and preliminary dives. At each site divers conducted a detailed examination of the area using a slightly modified MNCR phase 2 methodology. A hand-held digital video camera and still photographs were taken of the maerl and associated community to supplement real-time visual records and collections. Four replicate core samples were taken in areas of living maerl using a 10.3cm diameter corer to a depth of 20cm. The sediment was sieved and infauna extracted. An additional 20cm sediment core was taken for PSA analysis. A detailed examination of a Zostera bed was carried out using the same methodology as described for maerl beds. A subtidal sediment infaunal survey was conducted at 30 stations within the SAC. A single 0.1m2 van Veen grab sample was collected using the vessel RV Serpula at deeper stations. A subsample of each grab was taken for PSA. At shallower stations the SNH RIB Aphrodite was used to deploy divers who collected eight replicate core samples for infaunal analysis and one long sediment core for PSA analysis. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Moore, C.G., Saunders, G., Mair, J.M. and Lyndon, A.R. (2006). The inauguration of site condition monitoring of marine features of Loch Maddy Special Area of Conservation. Scottish Natural Heritage Commissioned Report No. 152 (ROAME No. F02AA409). |
| 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 | Species distribution | |
| 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 | 57.655366747836 |
| East | The eastern-most limit of the data resource in decimal degrees | -7.078971862793 |
| South | The southern-most limit of the data resource in decimal degrees | 57.5799792156 |
| West | The western-most limit of the data resource in decimal degrees | -7.2259140014648 |
| 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 | Colin Moore | |
| Individual name | Colin Moore | |
| Position name | Consultant | |
| c.g.moore84@gmail.com | ||
| 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`. | No restrictions to public access |
| 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. | Not for navigational use; SNH copyright data which is available for re-use under government licence terms: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Documents (Published report) |
| Format in which digital data can be provided for transfer | Database (Marine Recorder) | |
| 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. | 2006-01-01 |
| 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. | 2025-06-03 |
| 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 |