KiEco Freshwater Ecology: Lake Macroinvertebrates - Geospatial
Freshwater macroinvertebrates are used as an indicator of water quality and Lake flow requirements due to the relative immobility and abundance.
This dataset contains site, sample, metric and taxa information from freshwater Lake macroinvertebrate surveys carried out across Wales by Natural Resources Wales and former Environment Agency Wales since 1997 and onwards. These surveys are conducted as part of on-going monitoring of Lake water quality for legislative requirements and to meet business needs.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS161277
- Alternative Title
-
- KiEco Freshwater Lake Macro-invertebrates Taxa.lyr
- KiEco Freshwater Lake Macro-invertebrates Site Detail.lyr
- KiEco Freshwater Lake Macro-invertebrates Sample Metric.lyr
- Freshwater Lake Macroinvertebrates
- Metadata Language
- English
- Lineage
-
Lake invertebrate data is collected using different sampling methods. Lake invertebrate kick samples use the same 3-minute technique as in rivers and are used as part of the WFD process to assess acidification within lakes. Chironomid Exuviae Technique (CPET) which assesses the population of Chironomids within the lake to help assess nutrient and pH conditions within the waterbody.
A strict methodology is applied when sampling for freshwater Lake macroinvertebrates. There is a core network of sites which are monitored on a three-yearly rolling programme. These sites are located where risk assessment has shown significant risk of failure of WFD ecological quality standards. In addition sites may be sampled for investigative work, or on an ad hoc basis. Sampling areas are located with a larger survey area and must be representative of the overall survey area. Once samples are collected they are sent NRW ecology laboratories for identification using standard methodologies, employing a strict Analytical Quality Control (AQC) procedure.
Once the data is collated in the central database, it has then been extracted and QA'd before being published. It is important to note that this dataset will include some sampling events from recent months where sampling has been undertaken but laboratory analysis has not been completed, therefore the full complement of taxa for that sampling event will not yet be uploaded. These records will be completed in future data uploads from NRW to the NBN Atlas. This dataset also includes records for some non-macroinvertebrate species, such as birds and fish, that were either observed or collected during sampling. Any non-target organisms collected during sampling were immediately returned to the Lake.
- Dataset Reference Date (Publication)
- 2026-10-20
Temporal Extent
- Begin date
- 1997-01-01
- Topic category
-
- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
Distribution
- Format Type and Description
-
-
Geographical Information System
(
Unknown
)
- Specification
-
ESRI Feature Class
-
Delimited
(
Unknown
)
- Specification
-
Original data held on Wiski-Kieco database
-
Geographical Information System
(
Unknown
)
- Resource Locator
- Download and View Service ( WWW:LINK-1.0-http--link )
- Resource Locator
- WMS ( OGC:WMS )
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
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Degree
- false
- Lineage
-
Lake invertebrate data is collected using different sampling methods. Lake invertebrate kick samples use the same 3-minute technique as in rivers and are used as part of the WFD process to assess acidification within lakes. Chironomid Exuviae Technique (CPET) which assesses the population of Chironomids within the lake to help assess nutrient and pH conditions within the waterbody.
A strict methodology is applied when sampling for freshwater Lake macroinvertebrates. There is a core network of sites which are monitored on a three-yearly rolling programme. These sites are located where risk assessment has shown significant risk of failure of WFD ecological quality standards. In addition sites may be sampled for investigative work, or on an ad hoc basis. Sampling areas are located with a larger survey area and must be representative of the overall survey area. Once samples are collected they are sent NRW ecology laboratories for identification using standard methodologies, employing a strict Analytical Quality Control (AQC) procedure.
Once the data is collated in the central database, it has then been extracted and QA'd before being published. It is important to note that this dataset will include some sampling events from recent months where sampling has been undertaken but laboratory analysis has not been completed, therefore the full complement of taxa for that sampling event will not yet be uploaded. These records will be completed in future data uploads from NRW to the NBN Atlas. This dataset also includes records for some non-macroinvertebrate species, such as birds and fish, that were either observed or collected during sampling. Any non-target organisms collected during sampling were immediately returned to the Lake.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
-
NRW Thesaurus
-
- NBN Atlas
- lake ecology
- freshwater biology
- freshwater (fresh water, open water) (see also freshwater ecology) (see also inland waters,rivers,lakes)
- biological monitoring
- biological surveys
- Type
- Theme
Citation
- Date (Publication)
- 2026-10-19
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
-
Part of this dataset is sensitive, and access may be restricted under relevant legislation. NRW may NOT publish or disseminate the sensitive data. Requests should be referred to NRW's Access to Information Officer. However, there are no access restrictions on non-sensitive data. NRW may release, publish or disseminate a redacted version of the data freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
-
© CNC/NRW. NRW does NOT grant permission to third parties to re-use or disseminate the full dataset. A redacted version of the 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.
Attribution Statement
- Other constraints
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Licence
- Other constraints
- Open Government Licence
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313631323737 XML
- Metadata Language
- English
- Parent Identifier
-
Natural Resources Wales (NRW) Ecological Data held in WISKI (KiEco)
NRW_DS122446
- Resource type
- Dataset
- Metadata Date
- 2026-10-21T09:57:39.559Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0