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Metadata: 2024, Ocean Ecology, Langstone Village Saltmarsh, Saltmarsh Restoration Benthic Survey
Abstract:
The Langstone Village saltmarsh restoration project is looking into the feasibility of undertaking beneficial use of dredged sediment (BUDS) to restore an area of intertidal saltmarsh habitat. Ocean Ecology Ltd (OEL) has been commissioned by Havant Borough Council to undertake an intertidal benthic characterisation survey to determine the baseline conditions and habitats within the proposed saltmarsh restoration area.
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 19175 |
| 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. | 2024, Ocean Ecology, Langstone Village Saltmarsh, Saltmarsh Restoration Benthic 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. | 616b2722-8318-4266-8b21-cbb76114d96d |
| Resource Identifier | This is the code assigned by the data owner. | MDE-TCE-192-4151 |
| 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. | series |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2024-09-19 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2024-09-20 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| 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 Langstone Village saltmarsh restoration project is looking into the feasibility of undertaking beneficial use of dredged sediment (BUDS) to restore an area of intertidal saltmarsh habitat. Ocean Ecology Ltd (OEL) has been commissioned by Havant Borough Council to undertake an intertidal benthic characterisation survey to determine the baseline conditions and habitats within the proposed saltmarsh restoration area. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The survey was undertaken during low spring tide on the 19th and 20th September 2024. Survey operations were carried out utilising OELs 4-man hovercraft Solea and consisted of a Phase I walkover survey and a Phase II survey which included the collection of sediment cores for further sediment and macrobenthic analyses. Five sediment cores were also analysed for sediment chemistry. Sediments were classified as littoral muds with varied gravel and sand components with mean grain size ranging from 18 – 2,910 µm. Across all stations, the concentrations of heavy and trace metals, organotins, nitrate, the 7 ICES PCBs and most PAHs were below the limit of detection or the CEFAS Action Level 1 (AL1). Seven PAHs were above the OSPAR BAC level, notably at station ST006, and for Fluoranthene at most sites where the AL1 was also exceeded. Total organic carbon, phosphate, exchangeable ammonium and total nitrogen levels are provided and discussed in relation to the habitats found. The habitat map produced identified 6 different biotopes. However, the Langstone Village survey area was relatively homogeneous and with 76 % being characterised by EUNIS biotope MA622 Faunal communities of variable salinity Atlantic littoral mud on the mid to upper shore and MA6223 Nephtys hombergii, Macoma balthica and Streblospio shrubsolii in Atlantic littoral sandy mud on the mid to lower shore. The biotope MA225 Atlantic pioneer saltmarshes was primarily mapped in the western extent of the site and comprised of Spartina sp. A total area of 22,840 m2of saltmarsh was recorded, 7% of the survey area. All three habitats are listed as Annex I and OSPAR priority habitats and their species compositions and key physical characteristics are described in this report (along with all biotopes mapped) |
| 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 | Habitats and biotopes | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved total or organic phosphorus concentration in the water column | |
| 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 | Nitrogen concentrations in sediment | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 50.847030181096 |
| East | The eastern-most limit of the data resource in decimal degrees | -0.95104694366455 |
| South | The southern-most limit of the data resource in decimal degrees | 50.832992109682 |
| West | The western-most limit of the data resource in decimal degrees | -0.99808216094971 |
| 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 | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Ocean Ecology Limited | |
| Position name | Data Manager | |
| info@ocean-ecology.com | ||
| 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 | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Ocean Ecology Limited | |
| Position name | Data Manager | |
| info@ocean-ecology.com | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/TCE-4151/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.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 | No Limitations when published on the MDE | |
| 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. | Data Must be used in accordance to the Marine Data Exchange's Terms of Use: https://www.marinedataexchange.co.uk/content/info/terms-of-use |
| 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. | 2025-04-09 |
| 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. | 2025-04-09 |
| 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 |