The Feasibility of the Eradication of the Non Native Species Devil's Tongue Weed (Grateloupia turuturu) in Wales - Milford Haven Survey July 2013
Grateloupia turuturu, Devil's tongue weed is a Non Native Species (NNS) now found in the UK. Devil’s tongue weed grows in sheltered areas including harbours and bays, attached to pontoons, harbour walls, shells and stones. It occurs on the lower shore in pools, and subtidally to 7 m. Due to its tolerance of low salinities it may be found in estuarine areas as well as fully marine waters. A survey was undertaken to search for and record the presence of G. turuturu within Neyland marina and the surrounding Milford Haven area. The results showed that 38% of the pontoons and other floating structures surveyed in Neyland marine and wider Milford Haven waterway had a presence of G. turuturu. It is postulated that Neyland marina provides a suitable environment for reproduction of G. turuturu and introduction may have occurred through ship ballast water and/or the import of live shellfish associated with local aquaculture. The purpose of this survey was to assess the extent of dispersion of G. turuturu in Neyland marina and the wider Milford Haven waterway with the purpose of establishing whether eradication of this species was feasible. Information on the extent, density and dispersion of G. turuturu in the Milford Haven waterway may also influence future management responses to this and other marine non-native species. Recording the extent of G. turuturu informs future management response and helps decide the feasibility of eradicating the species.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
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DynodyddIdentifier
- NRW_DS115636
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Teitl AmgenAlternative Title
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- 2013 NRW / Grateloupia turuturu records Mildord Haven survey 2013 INNS MRCCW30000000092
- Dichonoldeb dileu Grateloupia turuturu yng Nghymru - arolwg Aberdaugleddau Gorffennaf 2013
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Laith MetadataMetadata Language
- English
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Lineage
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Pontoons and other floating structures were surveyed for the species. This involved people snorkelling around the structures and recording the presence. 22 pontoons at Neyland marina including all of the 184 finger pontoons were surveyed by teams of 2 people. Samples were also taken for further laboratory identification.
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Dyddiad cyfeirnod y set ddata (Cyhoeddiad)Dataset Reference Date (Publication)
- 2014-04-30
Extent
Extent
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HydGeographic Extent
- SIR BENFRO - PEMBROKESHIRE
))
Vertical Extent
- Medin Extent Keyword
- benthic boundary layer
Distribution
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Fformat - Math a DisgrifiadFormat Type and Description
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Documents
()
- Specification
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[A] The final report in Microsoft Word and pdf format [B] Species data in Microsoft excel [C] A series of GIS layers on which the maps in the report are based [D] A full set of images produced in jpg format
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Documents
()
Quality
Ansawdd Data
Data quality
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Cwmpas AnsawddQuality Scope
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DatasetDataset
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CydymffurfiadConformity
- Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Explanation
- Degree
- false
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Lineage
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Pontoons and other floating structures were surveyed for the species. This involved people snorkelling around the structures and recording the presence. 22 pontoons at Neyland marina including all of the 184 finger pontoons were surveyed by teams of 2 people. Samples were also taken for further laboratory identification.
Keywords
Allweddair
Keywords
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MathType
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ThemeTheme
Dyfyniad
Citation
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Dyddiad (Cyhoeddiad)Date (Publication)
- 2008-06-01
Allweddair
Keywords
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NRW Thesaurus
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- invasive species (alien species)
- Grateloupia turuturu
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MathType
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ThemeTheme
Dyfyniad
Citation
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Dyddiad (Cyhoeddiad)Date (Publication)
- 2023-12-31
Allweddair
Keywords
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SeaDataNet Parameter Discovery Vocabulary
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- Macroalgae and seagrass taxonomy-related counts
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MathType
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ThemeTheme
Dyfyniad
Citation
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Dyddiad (Adolygu)Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Gwybodaeth Cynnwys
Content Information
Proffil CNC
NRW Profile
Elfennau CNC
Custom Elements
- NRW Related Title
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Surveillance of Grateloupia turuturu in Wales - Milford Haven July 2013
Constraints
Constraints
Limitations on Public Access and Use
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Math o GyfyngiadRestriction type
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Other restrictionsOther restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Use Constraints
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Cyfyngiadau DefnyddioUse constraints type
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Other restrictionsOther restrictions
- Other constraints
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© CNC/NRW, 2014. There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
Metadata
Metadata
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Dynodydd FfeilFile Identifier
- 4f4c4942-4343-5764-6473-313135363336 XML
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Laith MetadataMetadata Language
- English
- Parent Identifier
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Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
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Math o adnoddResource type
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DatasetDataset
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Dyddiad MetadataMetadata Date
- 2024-12-09T12:37:47.314Z
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Enw Safonol MetadataMetadata Standard Name
- NRW
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Fersiwn MetadataMetadata Standard Version
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1.0