Monitoring of Invasive Non Native Species (INNS) Chinese Mitten Crabs (Eriocheir sinensis) on the River Dee 2007 - 2016
The Chinese mitten crab (Eriocheir sinensis) is registered by the Invasive Species Specialist Group (ISSG) of the International Union for Conservation of Nature (IUCN) as one of the top 100 invasive species worldwide. Mitten crabs are a catadromous species, migrating between fresh water and marine environments to reproduce. They spend the majority of their adult life in fresh water habitats, where they mature to reproductive size. Depending on mitten crab population density and habitat suitability, juvenile mitten crabs will migrate large distances up river to mature. The Dee Chinese mitten crab project set out to investigate the population of Chinese mitten crab in the Dee catchment and achieve a number of objectives including awareness raising, trialling and evaluating potential methods to monitor and manage the population and make inferences about the current and future status of the species in the Dee catchment.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS116496
- Alternative Title
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- 2015 NRW Monitoring of Chinese Mitten Crabs (Eriocheir sinensis) on the River Dee (NNS) MRCCW3000000009C
- Monitro'r Rhywogaeth Estron Oresgynnol cranc maneg Tsieineaidd (Eriocheir sinensis) ar Afon Dyfrdwy 2007 - 2016
- Metadata Language
- English
- Lineage
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Methods included search days organised at various sites along the River Dee. In addition to this, survey work was undertaken onboard boats in 2013. Volunteers also assisted with fyke netting, megalopa sample collection and data retrieval from data loggers positioned along the Dee.
- Dataset Reference Date (Publication)
- 2016-02-29
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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Documents
()
- Specification
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[A] Currently held in Marine Recorder [B] Spreadsheet available [C] Report in PDF Format
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Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Conformity
- 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
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This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Degree
- false
- Lineage
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Methods included search days organised at various sites along the River Dee. In addition to this, survey work was undertaken onboard boats in 2013. Volunteers also assisted with fyke netting, megalopa sample collection and data retrieval from data loggers positioned along the Dee.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- non-native species
- chinese mitten crab
- eriocheir sinensis
- river Dee (afon Dyfrdwy)
- River Dee (Holt To Worthenbury)
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- 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
- 4f4c4942-4343-5764-6473-313136343936 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
- 2026-03-03T12:28:15.1Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0