Mapiau Gwres o Lwybrau Rhywogaethau Estron Goresgynnol Morol ar gyfer Cymru 2020
Crëwyd mapiau gwres (geo-gronfeydd data) ar gyfer llwybrau rhywogaethau estron goresgynnol yn nyfroedd Cymru gan gynnwys llongau masnachol, cychod hamdden, dyframaethu, pysgota a gweithgareddau ar y môr. Cynhyrchwyd mapiau gwres ar raddfa 2km x 2km a 5km x 5km ac mae ganddynt haenau symbolaidd cysylltiedig. Cynhyrchwyd map gwres cyffredinol hefyd i dynnu sylw at ardaloedd allweddol sy'n fwyaf tebygol o gael eu goresgyn gan rywogaethau estron goresgynnol. Mae'r asesiad hwn yn rhoi trosolwg gwerthfawr o fannau problemus sy'n gysylltiedig â phob llwybr cyflwyno posibl, y lleoedd lle mae'r prif ardaloedd risg yn gorgyffwrdd ar gyfer y gwahanol lwybrau a'r mannau lle maent yn gorgyffwrdd ag ardaloedd gwarchodedig. Gall allbynnau'r asesiad hwn fod yn sail i gynlluniau bioddiogelwch.
Dylid nodi, fodd bynnag, mai ymarfer mapio ar raddfa genedlaethol oedd hwn yn seiliedig ar setiau data sydd ar gael am ddim ac yn rhwydd yn unig. Mae gan y rhain gyfyngiadau ac anghywirdebau posibl oherwydd cofnodion anghyflawn, yn amserol ac yn ofodol. Mae'r sgoriau a gymhwysir i’r setiau data a ddefnyddiwyd a'r pwysoliadau a gymhwysir i'r llwybrau cyflwyno hefyd yn seiliedig ar y llenyddiaeth sydd ar gael a barn arbenigol. Bydd gweithgareddau ac amodau safle-benodol bob amser yn ystyriaeth bwysig, yn ogystal ag amrywiadau amserol.
Cydnabyddiaeth:
Yn cynnwys gwybodaeth Cyfoeth Naturiol Cymru © Cyfoeth Naturiol Cymru a hawl cronfa ddata. Cedwir pob hawl. Y Gymdeithas Hwylio Frenhinol (RYA) (h) 2022. (h) Ystâd y Goron. Hawlfraint (h) Cedwir pob hawl. ABP Marine Environmental Research Ltd 2022. (h) Canolfan Gwyddorau'r Amgylchedd, Pysgodfeydd a Dyframaethu (Cefas).
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS124807
- Teitl Amgen
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- ABPmer INNS Pathway Maps
- All pathways combined at 2km grid.lyr
- All pathways combined at 5km grid.lyr
- Laith Metadata
- English
- Datganiad
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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 associated 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.
- Gwybodaeth ychwanegol
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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
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2022-08-12
Ystod amser
- Dyddiad cychwyn
- 2019-01-01
- Dyddiad gorffen
- 2019-12-31
- Categori pwnc
-
- Environment
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
-
unknown
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
(
)
- Math
-
GIS layers which accompany the report titled 'Welsh Marine Invasive Non-Native Species Pathways Assessment'
-
Geographic Information System
(
)
- Lleolwr Adnoddau
- View and Download ( WWW:LINK-1.0-http--link )
- Lleolwr Adnoddau
- Web Service ( OGC:WMS )
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
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 associated 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.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- activities
- Invasive Non-Native Species (INNS)
- invasive species (alien species)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
Allweddair
-
SeaDataNet Parameter Discovery Vocabulary
-
- Habitat characterisation
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Welsh Marine Invasive Non-Native Species Pathways Assessment
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
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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.
Datganiad Priodoli
- Cyfyngiadau eraill
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Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Royal Yachting Association (RYA) © 2022. © The Crown Estate. Copyright © All Rights Reserved. ABP Marine Environmental Research Ltd 2022. © Centre for Environment, Fisheries and Aquaculture Science (Cefas).
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313234383037 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-07-18T14:49:22.747Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0