Lamprey Habitat Assessement in the River Usk 1999

The River Usk has been notified as a site of Special Site of Scientific Interest (SSSI) and a Special Area of Conservation (SAC). The three lamprey species which occur there are all listed in Annex II of the EU Species and Habitat Directive. The aim of this study was to investigate the status of lampreys in the Usk and to consider matters relevant to their conservation. Specific objectives of the study have been. - To define the characteristics of lamprey spawning and nursery habitat - To obtain and summarise information on the distribution of lampreys and lamprey spawning and nursery habitat in the Usk - To investigate the possibility of using information from RHS to predict the occurrence or lampreys in the Usk. - To make recommendations to assist with the monitoring and conservation of lampreys and their habitat. - To monitoring the status of lampreys required to comply with the reporting requirements of the Habitats Directive.

Identification

Identifier
NRW_DS112571
Alternative Title
  • Lamprey Habitat Assessment in the River Usk 1998 - CCW - Report No. 365 CCW000280000000C
  • Asesiad o Gynefin y Llysywen Bendoll yn Afon Wysg 1999
  • Lamprey Habitat Assessement using RHS in the River Usk
Metadata Language
English
Lineage

Distribution of lampreys was determined by electric fishing at 44 sites throughout the main river and selected tributaries, and potential obstructions to upstream migration were assessed. Confidence in this dataset is high.
Additional Information

Rivers Ecologist, NRW.
Dataset Reference Date (Publication)
1999-12-31
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  APEM Ltd
APEM Remote Sensing, Riverview, A17 Embankement Buisness Park, Heaton Mersey, Stockport, SK4 3GN
http://www.apemltd.co.uk
 

Extent

Extent

Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Format Type and Description
  • Database ()

    Specification

    Data associated with this is Archived under Project Number 280 Media Number 1076. [A] The final report in Microsoft Word format Ffynnon Reference DCT-09-049444. [B] Raw data workbook in excel format. [C] Species data held within Recorder as CCW000280000000C.

 

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
Degree
false
Lineage

Distribution of lampreys was determined by electric fishing at 44 sites throughout the main river and selected tributaries, and potential obstructions to upstream migration were assessed. Confidence in this dataset is high.
 

Keywords

Keywords

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

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

Keywords

NRW Thesaurus
  • Agnatha
  • lampreys (river lamprey, brook lamprey and sea lamprey)
  • petromyzon marinus
  • sea lamprey
  • lampetra fluviatilis
  • river lamprey
  • lampetra planeri
  • brook lamprey
  • substratum
  • SSSI (Sites of Special Scientific Interest)
  • Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
  • River Usk
  • River Habitat Survey (RHS)
  • spawning sites
  • nursery habitat
  • electrofishing
  • population density
  • age structure
  • river management
  • fish (fishes) (see also specific species)
Type
Theme

Citation

Date (Publication)
2023-12-31
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Lamprey habitat assessment using RHS in the river Usk
 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

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

Use Constraints

Use constraints type
Other restrictions
Other constraints

© CNC/NRW 1999 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
 
 
 

Metadata

Metadata

File Identifier
4f4c4942-4343-5764-6473-313132353731 XML
Metadata Language
English
Parent Identifier
Freshwater River lamprey (Lampetra fluviatilis), Brook lamprey (Lampetra planeri) and Sea lamprey (Petromyzon marinus) Survey Data

NRW_DS116345
Resource type
Dataset
Metadata Date
2024-05-31T09:26:43.45Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

pointOfContact
  Master Reference Data Team
Natural Resources Wales, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 
 

Publishing Body

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