Macrofaunal Community Monitoring on Saline Lagoons across Wales
Shallow coastal lagoons are designated as a priority Annex I Habitat under the EC Habitats Directive. This dataset includes the infaunal community and species populations and sediment grain distribution data for five Welsh lagoons. Infaunal communities of three lagoons (Cemlyn, Anglesey; Pickleridge, Pembrokeshire; and Morfa Gwyllt, Gwynedd) have been annually monitored since 2006 and two lagoons (Neyland and Carew, Pembrokeshire) have been monitored since 2011. The purpose of this data capture was to assess the ecological health of invertebrate communities and population dynamics across lagoon environments, in order to infer the health and functionality of the ecosystems at each lagoon.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS116511
- Metadata Language
- English
- Lineage
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Annual quantitative macrofauna and sediment sampling was conducted using a hand held core or Ekman grab for surveys conducted at Cemlyn, Morfa Gwyllt and Pickleridge between 2006 and 2013. In recent years, infauna and sediment winter sampling has also been undertaken at Neyland Weir Pool and Carew Mill Pond (2011, 2012 and 2013). At all lagoons other than Morfa Gwyllt, a fixed sampling station design were chosen to capture the range of potential benthic variation that might occur due to point sources of seawater and freshwater input and to minimize the risk of widespread disturbance caused by destructive sampling. At the smaller Morfa Gwyllt site no potential input gradients were likely and so a randomised sample plot was selected. All samples were sieved over a 0.5 mm mesh in situ, preserved in 4 percent formalin solution and then transferred to a laboratory where biota were sorted and enumerated to the lowest possible taxonomic level.
- Additional Information
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Samples were analysed by Fugro Marine (formally ERT Ltd) for all years except 2012, where APEM ltd undertook the analysis. Both contractors undertook work in line with National Marine Biological Analytical Quality Control guidance. For further information see: Green, M & Camplin, M (2013) Saline lagoons: An Across Wales Macrofaunal Community Monitoring Report. NRW Evidence Report Series. Report Number ? Natural Resources Wales, Bangor, Gwynedd, Wales.
- Dataset Reference Date (Publication)
- 2016-03-31
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
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benthic boundary layer
Distribution
- Format Type and Description
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Database
()
- Specification
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Species data held in Marine Recorder
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Database
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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Annual quantitative macrofauna and sediment sampling was conducted using a hand held core or Ekman grab for surveys conducted at Cemlyn, Morfa Gwyllt and Pickleridge between 2006 and 2013. In recent years, infauna and sediment winter sampling has also been undertaken at Neyland Weir Pool and Carew Mill Pond (2011, 2012 and 2013). At all lagoons other than Morfa Gwyllt, a fixed sampling station design were chosen to capture the range of potential benthic variation that might occur due to point sources of seawater and freshwater input and to minimize the risk of widespread disturbance caused by destructive sampling. At the smaller Morfa Gwyllt site no potential input gradients were likely and so a randomised sample plot was selected. All samples were sieved over a 0.5 mm mesh in situ, preserved in 4 percent formalin solution and then transferred to a laboratory where biota were sorted and enumerated to the lowest possible taxonomic level.
Keywords
Keywords
Keywords
- NRW Thesaurus
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- lagoonal
- Morfa Gwyllt spit lagoon
- lagoons
- Cemlyn Lagoon
- coastal saline lagoon
- coastal lagoon
- Widewater Lagoon
- Pickleridge lagoon
- Vadills Lagoon SAC
- biological monitoring
- biological surveys
- coastal survey (coastal monitoring)
- sediment infauna
- Infauna
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Habitat extent
- Habitat characterisation
- Sediment grain size parameters
- Sedimentary structure
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other 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
- Use constraints type
- Other restrictions
- Other constraints
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© 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 .
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313136353131 XML
- Metadata Language
- English
- Parent Identifier
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Natural Resources Wales (NRW) Marine Benthic Species and Habitat Collation Held in Marine Recorder
NRW_DS114501
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:40:03.652Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0