Phase 1 Intertidal Biotope Mapping for Severn Estuary 2002 - 2004 (3rd Party Data)
This is a 3rd party spatial dataset for Phase 1 intertidal biotope data for the English side of the Severn Estuary as an addition to the Welsh side which was completed by Countryside Council for Wales. The Severn Estuary has long been regarded as a site of international natural heritage importance but managing the wide variety of significant wildlife interests against a background of increasing human pressures represents huge challenges for the UK statutory conservation agencies. The study aim was to provide a powerful management GIS tool to support decision making processes and allow rapid assessments of the effects of human activities on local intertidal ecological features. The project involved the construct a Geographical Information System (GIS) database populated with Phase I level intertidal biotope data for the entire Severn Estuary site (English side). The study aim was to provide a powerful management GIS tool to support decision making processes and allow rapid assessments of the effects of human activities on local intertidal ecological features. The objectives of the study are summarised below: - Conduct Phase I mapping field surveys to classify and map (at 1:5000 scale) intertidal biotopes along the English side of the Severn Estuary possible Special Area of Conservation (pSAC) including Bridgwater Bay Special Protection Area (SPA). - Present a consistent biotope dataset for intertidal areas throughout the site and to compliment similar previous mapping work of sub-tidal environments (Posford Duvivier) and saltmarshes (Dargie, 1998). - Construct a Geographical Information System (GIS) database present a report giving a descriptive account of the site, highlighting significant habitats and species, and providing an interpretation of observations. - Present a report giving a descriptive account of the site, highlighting significant habitats and species, and providing an interpretation of observations.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- EXT_DS115861
- Teitl Amgen
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- Phase 1 Intertidal data - third party Severn Estuary
- Gwaith mapio biotopau rhynglanwol Cam 1 ar gyfer Aber Afon Hafren - Data Trydydd Parti ( 2002 - 2004 )
- Laith Metadata
- English
- Datganiad
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A total of 57 intertidal biotopes were classified and mapped during the study. Biotope classification was based on the v97.06 system. It has been recognised that one of the most efficient methods of ecological data acquisition and dissemination is biotope mapping and the construction of biotope maps. Biotope mapping is a well-established survey technique enabling the rapid field collection of ecological data over very large areas, such as the Severn Estuary. Data drawn from the field surveys are presented as biotope maps which show the geographical extents and variety of habitats and their component species (biotopes) within a given area. In conjunction with expert opinion, biotope maps and accompanying survey reports can be used to assess the likely ecological effects of proposed activities and the possible consequences for nationally and internationally significant ecological features. Of particular note was the very extensive honeycomb worm, Sabellaria alveolata, reefs (classified as MLR.Salv), which is noted as scarce in the UK. In some places, this biotope dominated lower eulittoral and sub-littoral fringe rock and consolidated gravel/cobble substrata. Important locations for intertidal S. alveolata reefs included Wains Hill, Ladye Point, Anchor Head, English Stones, Steep Holm Island and Stert Flats in Bridgwater Bay. In comparison to other Sabellaria reef habitats within the UK, the associated fauna of Severn Estuary S. alveolata intertidal reef habitat is likely to be very impoverished due to the high sediment loading, high current speeds and related scouring effects.
- Gwybodaeth ychwanegol
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Severn Estuary Intertidal biotope mapping, Baseline Phase 1 Study. Draft Final Report February 2005. Report No. 04/J/1/03/0452/0466
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2005-02-28
Rhychwant
Rhychwant
- Hyd
- CASNEWYDD - NEWPORT
- Hyd
- CAERDYDD - CARDIFF
))
Maint Fertigol
- Maint allweddair MEDIN
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benthic boundary layer
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
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Documents
()
- Math
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[A] Data. Map Info Biotope data, photo target data and target note data. [B] Report. Draft Final Report in .pdf format. [C] Severn Photos 392 .jpg photos of survey locations and areas of interest within the survey. [D] Target_Notes_RTF 461 Target Notes in Word .rft format
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Documents
()
- Lleolwr Adnoddau
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View Metadata
World Wide Web page
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
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A total of 57 intertidal biotopes were classified and mapped during the study. Biotope classification was based on the v97.06 system. It has been recognised that one of the most efficient methods of ecological data acquisition and dissemination is biotope mapping and the construction of biotope maps. Biotope mapping is a well-established survey technique enabling the rapid field collection of ecological data over very large areas, such as the Severn Estuary. Data drawn from the field surveys are presented as biotope maps which show the geographical extents and variety of habitats and their component species (biotopes) within a given area. In conjunction with expert opinion, biotope maps and accompanying survey reports can be used to assess the likely ecological effects of proposed activities and the possible consequences for nationally and internationally significant ecological features. Of particular note was the very extensive honeycomb worm, Sabellaria alveolata, reefs (classified as MLR.Salv), which is noted as scarce in the UK. In some places, this biotope dominated lower eulittoral and sub-littoral fringe rock and consolidated gravel/cobble substrata. Important locations for intertidal S. alveolata reefs included Wains Hill, Ladye Point, Anchor Head, English Stones, Steep Holm Island and Stert Flats in Bridgwater Bay. In comparison to other Sabellaria reef habitats within the UK, the associated fauna of Severn Estuary S. alveolata intertidal reef habitat is likely to be very impoverished due to the high sediment loading, high current speeds and related scouring effects.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
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- habitat distribution
- habitat classification
- habitat assessment
- habitat mapping
- Severn Estuary pSAC, SPA
- coastal geomorphology
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
Allweddair
- SeaDataNet Parameter Discovery Vocabulary
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- Habitat extent
- Habitat characterisation
- Coastal geomorphology
- Math
- Theme
Dyfyniad
- Dyddiad (Adolygu)
- 2021-01-06
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
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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This dataset is wholly owned by Natural England. NRW may provide access to this dataset on request in some circumstances. However, enquirers are advised to obtain a copy from the owner/originator directly, rather than NRW. NRW may NOT publish or disseminate it in its entirety.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
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© Natural England, 2015. NRW does NOT grant permission to third parties to re-use or disseminate this dataset. Those seeking such permission should approach the originator directly.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313135383631 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:23:45.704Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0