Scarce Yellow Sally stonefly Isogenus nubecula, River Dee at Bangor-on-Dee 2020

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  • wel
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In 2018, a survey commissioned by Natural Resources Wales across the former known range of the Scarce Yellow Sally (Isogenus nubecula) confirmed the species at five sites on the River Dee, with particularly strong populations identified at Bangor-on-Dee and Pickhill Meadows. To assess its continued status, a follow-up survey was commissioned in 2020. The survey confirmed the continued presence of I. nubecula, with six nymphs recorded at Bangor-on-Dee on 24 March 2020. The survey contributes to ongoing monitoring of this rare stonefly and provides updated information on its distribution within the River Dee catchment.

Identification

Dynodydd
Identifier
NRW_DS124796
Teitl Amgen
Alternative Title
  • A survey of the River Dee at Bangor-on-Dee for the Scarce Yellow Sally stonefly Isogenus nubecula in spring 2020
Laith Metadata
Metadata Language
English
Lineage

Field surveys were undertaken in 2020 to confirm the continued presence of the Scarce Yellow Sally (Isogenus nubecula) within the River Dee catchment. Survey planning was informed by current and forecast weather conditions, together with river-level data from the Manley Hall flow gauging station, as suitable water levels were required for effective kick-sampling. Aquatic invertebrate samples were collected from selected river locations using standard kick-sampling techniques and examined for the presence of I. nubecula nymphs. The resulting records were used to assess the current status and distribution of the species within the River Dee.
Additional Information

Davy-Bowker J., Hammett M. & Farr A. 2020. A survey of the River Dee at Bangor-on-Dee for the Scarce Yellow Sally stonefly Isogenus nubecula in spring 2020. NRW Evidence Report No: 462, 11pp, Natural Resources Wales, Bangor.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2020-06-01

Temporal Extent

Begin date
2020-03-24
End date
2020-03-24
 
Categori pwnc
Topic category
  • Biota
    Biota
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 

Extent

Extent

Hyd
Geographic Extent
Flintshire (51)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Dosbarthiad
Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Database ( Unknown )

    Specification

    Species records: Recorder 6

  • Documents ( Unknown )

    Specification

    Report as pdf format

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
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

Field surveys were undertaken in 2020 to confirm the continued presence of the Scarce Yellow Sally (Isogenus nubecula) within the River Dee catchment. Survey planning was informed by current and forecast weather conditions, together with river-level data from the Manley Hall flow gauging station, as suitable water levels were required for effective kick-sampling. Aquatic invertebrate samples were collected from selected river locations using standard kick-sampling techniques and examined for the presence of I. nubecula nymphs. The resulting records were used to assess the current status and distribution of the species within the River Dee.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • river Dee (afon Dyfrdwy)
  • Scarce Yellow Sally Stonefly
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords
 

Spatial Reference System

Code
NONE
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

A survey of the River Dee at Bangor-on-Dee for the Scarce Yellow Sally stonefly Isogenus nubecula in spring 2020
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© 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.
 

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

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313234373936 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-09-29T15:38:57.565Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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