Marine Invasive Non-Native Species (INNS) Pathways Heatmaps for Wales 2020
Heatmaps (geodatabases) were created for invasive non-native species pathways in Welsh waters including commercial shipping, recreational boating, aquaculture, fishing and offshore activities. Heatmaps were produced at both 2km x 2km and 5km x 5km resolutions and have associated symbology layers. An overall heatmap was also produced to highlight key areas which are likely most at risk from invasion of invasive non-native species. This assessment provides a valuable insight into hotspots related to each potential pathway of introduction, the areas where the main areas of risk overlap for the different pathways and their overlap with protected areas. The outputs from this assessment can form the basis to underpin biosecurity planning. It should be noted, however, that this was a national scale mapping exercise based only on freely available datasets, which themselves have limitations and possible inaccuracies due to incomplete coverage, both temporally and spatially. The scorings applied to the input datasets and weightings applied to the introduction pathways are also based on available literature and expert judgement. Site-specific activities and conditions will always be an important consideration, as well as temporal variations.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
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DynodyddIdentifier
- NRW_DS124807
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Teitl AmgenAlternative Title
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- Mapiau Gwres o Lwybrau Rhywogaethau Estron Goresgynnol Morol ar gyfer Cymru 2020
- ABPmer INNS Pathway Maps
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Laith MetadataMetadata Language
- English
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Lineage
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The approach applied in this study, used data acquired from readily available, open licence sources where possible. A hexagonal grid, clipped to the extent of the Welsh marine planning area, with cell size of 5 km2 was created in ArcGIS and this was spatially joined to input data layers, representative of the introduction pathways, to create heatmaps. A series of heatmaps were created for each of the introduction pathways, using a scaled scoring method. A final combined heatmap of all introduction pathways was also created by applying weightings to the different pathways. Figures of all heatmaps were created, as well as figures of designated sites overlying the final combined heatmap to show sites at potentially greater risk from the introduction of marine INNS. The Celtic Sea (including Welsh and Irish waters) has approximately two to three new introductions of non-indigenous species every year (European Environment Agency (EEA), 2015; 2019a). Identifying coastal areas where invasive non-native species (INNS) are more likely to be introduced is a valuable tool which will help to focus management efforts and identify sensitive areas which may be at a higher risk. Mapping the intensity of introduction pathway activities can aid the identification of these higher risk areas. This report provides an update to the work carried out by Tidbury et al. in 2014, which considered the potential for the introduction of INNS in coastal areas of UK and Ireland using a 50 km x 50 km grid. This study focuses only on Welsh waters and at a higher spatial resolution than the original study.
- Additional Information
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Dewey, N., Pack, K, Williamson, D, Walsh, A. 2020. Welsh Marine Invasive Non-Native Pathways Assessment NRW Evidence Report No: 459, 105pp, Natural Resources Wales, Bangor
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Dyddiad cyfeirnod y set ddata (Cyhoeddiad)Dataset Reference Date (Publication)
- 2022-08-12
Extent
Extent
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HydGeographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
- unknown
Distribution
Dosbarthiad
Distribution
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Fformat - Math a DisgrifiadFormat Type and Description
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Geographic Information System
()
- Specification
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GIS layers which accompany the report titled 'Welsh Marine Invasive Non-Native Species Pathways Assessment'
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Geographic Information System
()
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Lleolwr AdnoddauResource Locator
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View and Download
World Wide Web page
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Lleolwr AdnoddauResource Locator
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Web Service
World Wide Web page
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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The approach applied in this study, used data acquired from readily available, open licence sources where possible. A hexagonal grid, clipped to the extent of the Welsh marine planning area, with cell size of 5 km2 was created in ArcGIS and this was spatially joined to input data layers, representative of the introduction pathways, to create heatmaps. A series of heatmaps were created for each of the introduction pathways, using a scaled scoring method. A final combined heatmap of all introduction pathways was also created by applying weightings to the different pathways. Figures of all heatmaps were created, as well as figures of designated sites overlying the final combined heatmap to show sites at potentially greater risk from the introduction of marine INNS. The Celtic Sea (including Welsh and Irish waters) has approximately two to three new introductions of non-indigenous species every year (European Environment Agency (EEA), 2015; 2019a). Identifying coastal areas where invasive non-native species (INNS) are more likely to be introduced is a valuable tool which will help to focus management efforts and identify sensitive areas which may be at a higher risk. Mapping the intensity of introduction pathway activities can aid the identification of these higher risk areas. This report provides an update to the work carried out by Tidbury et al. in 2014, which considered the potential for the introduction of INNS in coastal areas of UK and Ireland using a 50 km x 50 km grid. This study focuses only on Welsh waters and at a higher spatial resolution than the original study.
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)
- Invasive Non-Native Species (INNS)
- activities
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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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- Habitat characterisation
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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
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 on 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 All rights Reserved. © RYA. © Crown Estate. © ABPmer. © Cefas. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Attribution Statement
- Other constraints
- Open Government Licence (OGL)
Licence
- Other constraints
- Open Government Licence (OGL)
Metadata
Metadata
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Dynodydd FfeilFile Identifier
- 4f4c4942-4343-5764-6473-313234383037 XML
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Laith MetadataMetadata Language
- English
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Math o adnoddResource type
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DatasetDataset
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Dyddiad MetadataMetadata Date
- 2024-12-09T14:34:38.988Z
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Enw Safonol MetadataMetadata Standard Name
- NRW
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Fersiwn MetadataMetadata Standard Version
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1.0