Arolwg gwaddodion ACA Bae a Morydau Caerfyrddin 2023 CNC
In Carmarthen Bay and Estuaries SAC the Annex I intertidal habitat features include: Mudflats and sandflats not covered by seawater at low tide. A series of 23 sediment monitoring locations, distributed around the SAC to represent different areas and habitats, were established between 2005 and 2008.
Most locations were initially defined as transects (a line from upper to lower shore) but many have been redefined as clusters of stations (areas of shore). Between 1 and 6 sampling stations have been established (with fixed positions) within each of those locations, though some have required repositioning due to channel movements.
These stations have been monitored using a combination of in-situ recording and sediment core sampling with laboratory analysis of infaunal composition and sediment granulometry. Some stations (those at Crofty and Llansteffan) are surveyed and sampled annually, others at intervals of 2 or more years. This description refered to data collected in 2023.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS161416
- Teitl Amgen
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- 2023 NRW Carmarthen Bay and Estuaries SAC sediment monitoring [43cadc21-0e19-4f03-a658-6ca40d5b310b]
- Laith Metadata
- English
- Datganiad
-
Two survey methodologies are undertaken :
1) In-situ survey of conspicuous epibiota and their abundance (various data types depending on species) visible on the sediment surface (area within 5m radius from GPS located station coordinates), plus in-situ characterisation of sediment habitat. Photographs taken of the habitat and representative core samples at each station.
2) Five x 0.01m2 core samples sieved and preserved in formalin for infaunal analysis, plus a sample of sediment taken for granulometry analysis. Samples (macrofauna and sediments) analysed by Hull Marine Lab. Data collated and used to assign biotopes to each station.
The pupose of this data collection is to support long-term monitoring to maintain a baseline of data that can be used for regular assessment of condition of the SAC, to study any changes over time, and to understand the scale of natural temporal fluctuations in those communities and species.
All surveys completed by professional and experienced marine field surveyors. Data quality and confidence considered moderate to high.
- Gwybodaeth ychwanegol
-
The data will be available through MEDIN Data Archive Centre and the NBN Atlas once automatic flow from MRO Is established
- Dyddiad cyfeirnod y set ddata (Creu)
- 2024-08-30
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2025-10-11
Ystod amser
- Dyddiad cychwyn
- 2023-10-16
- Dyddiad gorffen
- 2023-10-17
- Categori pwnc
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- Biota
Rhychwant
Rhychwant
- Hyd
- http://vocab.nerc.ac.uk/collection/C19/current/UKMDN012/
))
Maint Fertigol
- Maint allweddair MEDIN
- littoral
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
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-
Database
(
version 2.07.03
)
- Math
-
Marine Recorder Online
-
Documents
(
)
- Math
-
Digital versions of the contract report: Microsoft Word document(s); and an equivalent Adobe Portable Document Format version in prep
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Delimited
(
)
- Math
-
Excel spreadsheets with species data from infaunal analysis.
-
Geographic Information System
(
)
- Math
-
GIS layer of station positions
-
Image
(
)
- Math
-
Photographs of the station, core and selected species
-
Database
(
version 2.07.03
)
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- 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
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
Two survey methodologies are undertaken :
1) In-situ survey of conspicuous epibiota and their abundance (various data types depending on species) visible on the sediment surface (area within 5m radius from GPS located station coordinates), plus in-situ characterisation of sediment habitat. Photographs taken of the habitat and representative core samples at each station.
2) Five x 0.01m2 core samples sieved and preserved in formalin for infaunal analysis, plus a sample of sediment taken for granulometry analysis. Samples (macrofauna and sediments) analysed by Hull Marine Lab. Data collated and used to assign biotopes to each station.
The pupose of this data collection is to support long-term monitoring to maintain a baseline of data that can be used for regular assessment of condition of the SAC, to study any changes over time, and to understand the scale of natural temporal fluctuations in those communities and species.
All surveys completed by professional and experienced marine field surveyors. Data quality and confidence considered moderate to high.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
Allweddair
-
NRW Thesaurus
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- intertidal
- Infauna
- core sampling
- Intertidal monitoring
- Carmarthen Bay and Estuaries SAC
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2025-01-08
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
- noLimitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Datganiad Priodoli
- Cyfyngiadau eraill
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313631343136 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Across Wales Intertidal Monitoring Survey
NRW_DS109834
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2025-12-02T16:09:51.249Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0