• {'logoName' | translate} NRW Data Discovery

Pysgod Morol Kieco

Marine fish are used as an indicator of stock status, water and habitat quality. This dataset is made up of the species count and length values from the fish surveys conducted across Wales marine environment by Natural Resources Wales and former Environment Agency Wales. These surveys are conducted as part of on-going monitoring of fish in their natural environment for legislative requirements and to meet business drivers.


Only a redacted version of this data is available under the Open Governance Licence and available for public use, see Limitation on Public Access and Use Constraints

  • Dull adnabod
  • Rhychwant
  • Dosbarthiad
  • Ansawdd
  • Allweddeiriau
  • System Cyfeirio Gofodol
  • Cynnwys
  • Cyfyngiadau
  • Cynnal a chadw
  • Metadata

Dull adnabod

Dynodydd
NRW_DS125741
Laith Metadata
English
Datganiad

A strict methodology is applied when sampling for marine fish. There is a core network of sites which are regularly monitored. These sites are located in habitat types suitable for the respective fish species. In addition, sites may be sampled for investigative work, or on an ad hoc basis. Once a sample of fish is collected, they are immediately identified in the field, measured and counted and then released alive from where they were captured.


Redactions applied to allow public access via the NBNAtlas


Some information has be redacted to make the data openly available. This includes:


- Third party data

- Data collected for ongoing investigations

- Cancelled or incomplete surveys

- Update Frequency


This data is continually update with most changes made in the early autumn. Data from survey seasons is often not enter at the time of capture and can be several months before its is entered into the system. The external dataset is updated monthly to include new data, and may also contain corrections to previously published data due to quality assurance work.


INFORMATION WARNING


Marine fish survey data is available from 1997 to present. A caveat being that historical data are sporadic until 2001. This is because fish survey data collected before 2001 were often saved in local databases and not the national ones (KiEco and formerly NFPD).


Fish surveys are carried out by a range of survey methods, the data from one survey is not necessarily directly comparable to another. The user is recommended to check the survey method used in the data provided.


We do our best to avoid data quality problems, but as these datasets reflect the data we hold, they may contain errors

The data is provided as a set of related data tables due to the quantity and structure of the data. A basic understanding of fisheries science and relational databases is assumed.

Dyddiad cyfeirnod y set ddata (Creu)
2023-12-01
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
2024-06-11
Perchennog
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 

Rhychwant

Rhychwant

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


 

Maint Fertigol

Maint allweddair MEDIN
water column
 
 

Dosbarthiad

Dosbarthiad

Fformat - Math a Disgrifiad
  • Database ( )

    Math

    WISKI:KiECO

Lleolwr Adnoddau
View and Download data ( WWW:LINK-1.0-http--link )
 

Ansawdd

Ansawdd Data

Cwmpas Ansawdd
Dataset
Cydymffurfiad
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
Eglurhad

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.

Gradd
false
Datganiad

A strict methodology is applied when sampling for marine fish. There is a core network of sites which are regularly monitored. These sites are located in habitat types suitable for the respective fish species. In addition, sites may be sampled for investigative work, or on an ad hoc basis. Once a sample of fish is collected, they are immediately identified in the field, measured and counted and then released alive from where they were captured.


Redactions applied to allow public access via the NBNAtlas


Some information has be redacted to make the data openly available. This includes:


- Third party data

- Data collected for ongoing investigations

- Cancelled or incomplete surveys

- Update Frequency


This data is continually update with most changes made in the early autumn. Data from survey seasons is often not enter at the time of capture and can be several months before its is entered into the system. The external dataset is updated monthly to include new data, and may also contain corrections to previously published data due to quality assurance work.


INFORMATION WARNING


Marine fish survey data is available from 1997 to present. A caveat being that historical data are sporadic until 2001. This is because fish survey data collected before 2001 were often saved in local databases and not the national ones (KiEco and formerly NFPD).


Fish surveys are carried out by a range of survey methods, the data from one survey is not necessarily directly comparable to another. The user is recommended to check the survey method used in the data provided.


We do our best to avoid data quality problems, but as these datasets reflect the data we hold, they may contain errors

The data is provided as a set of related data tables due to the quantity and structure of the data. A basic understanding of fisheries science and relational databases is assumed.

 

Allweddeiriau

Allweddair

GEMET - INSPIRE themes, version 1.0
  • Habitats and biotopes
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2008-06-01
Cod
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair

NRW Thesaurus

  • fish (fishes) (see also specific species)
  • fish counter
  • fish stocks
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2026-01-16
Cod
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair

SeaDataNet Parameter Discovery Vocabulary

  • Fish taxonomy-related counts
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2024-06-19
Cod
geonetwork.thesaurus.external.theme.rdf+xml
 

System Cyfeirio Gofodol

Cod
British National Grid (EPSG:27700)
 

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

 

Cyfyngiadau

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Math o Gyfyngiad
Other restrictions
 

Cyfarwyddeb Cyfyngiadau Mynediad

Cyfyngiadau
noLimitations
 

Testun cyfyngiadau mynediad

Cyfyngiadau eraill

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.

 

Defnyddiwch gyfyngiadau

Cyfyngiadau Defnyddio
Other restrictions
Cyfyngiadau eraill

© 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.

 

Datganiad Priodoli

Cyfyngiadau eraill

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.

 

Math o Drwydded

Cyfyngiadau eraill
Open Government Licence
 
 
 

Metadata

Metadata

Dynodydd Ffeil
4f4c4942-4343-5764-6473-313235373431 XML
Laith Metadata
English
Math o adnodd
Dataset
Dyddiad Metadata
2026-03-03T16:09:55.924Z
Enw Safonol Metadata
NRW
Fersiwn Metadata

1.0

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

Corff Cyhoeddi

Mynediad i'r Porth
Mynediad llawn i'r porth a'r metadata.


  •   Ynghylch
  •   Github
  •