Llyn Tegid Hydroacoustic Surveys and Gwyniad Translocation 2003

The purpose of this project was to develop a generic Whitefish sampling protocol suitable for Llyn Tegid and produce a condition assessment of the population. A population survey of Gwyniad was recommended to be undertaken after failed attempts to establish a refuge population in 2003. Project to develop a generic protocol for the assessment of whitefish (Coregonus albula and Coregonus lavaretus) populations developed by Scottish Natural Heritage (SNH) to the Gwyniad of Llyn Tegid during July 2003 with the addition of the determination of oxygen and temperature profiles and Secchi depths. The protocol involved hydroacoustics and limited gill netting. This datasets contains the results of the gill netting survey only.

Dynodydd: NRW_DS115048

Teitl Amgen

Gwyniad Gill netting survey of Llyn Tegid 2003 - CCW Science Report 597 CCW000800000000E
Arolygon Hydroacwstig a Thrawsleoli Gwyniaid Llyn Tegid 2003
Gill netting in Llyn Tegid

Laith Metadata: English

Datganiad: Hydroacoustic survey along a discrete parallel design using a BioSonics DT6000 echo sounder. Gill netting was undertaking using basic and pelagic versions of the Norden survey gill net. Nets were set at 3 sites inshore together with a basic and pelagic net in the offshore areas. Oxygen and temperature profiles were taken at one location and secchi disc readings taken at the same site.

Gwybodaeth ychwanegol: Rivers Ecologist, NRW. Associated Report Title: Gwyniad translocation project: Phase One - a condition assessment of the potential donor population of Llyn Tegid CCW Contract Science Report No. 597 I. Winfield., J. Flectcher., J. James (2003)

Dyddiad cyfeirnod y set ddata (Cyhoeddiad): 2003-10-31

Ystod amser

Dyddiad cychwyn: 2002-07-02

Dyddiad gorffen: 2003-07-03

Categori pwnc

Biota

Perchennog

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Cychwynnwr

Centre for Ecology and Hydrology (CEH)

Environment Centre Wales, Deiniol Road, Bangor, Gwynedd, LL57 2UW, Wales

http://www.ceh.ac.uk/

Rhychwant

Hyd: GWYNEDD - GWYNEDD

Map representing the geographic extent of the dataset

Fformat - Math a Disgrifiad

Database Database ()

Math

[A] Report available as pdf. Ffynnon Reference Number DCT-10-025133 [B] Species data available as and Excel Spreadsheet .xlsx [C] Recorder 6 Format Gwyniad Gill netting survey of Llyn Tegid 2003 - CCW Science Report 597 CCW000800000000E

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
Gradd: false

Datganiad: Hydroacoustic survey along a discrete parallel design using a BioSonics DT6000 echo sounder. Gill netting was undertaking using basic and pelagic versions of the Norden survey gill net. Nets were set at 3 sites inshore together with a basic and pelagic net in the offshore areas. Oxygen and temperature profiles were taken at one location and secchi disc readings taken at the same site.

Allweddair

GEMET - INSPIRE themes, version 1.0

Species distribution

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2008-06-01

Cod: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair

NRW Thesaurus

Llyn Tegid
gwyniad (freshwater whitefish)
coregonus lavaretus
hydroacoustic
gill nets

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2023-12-31

Cod: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Cod: Latitude and Longitude (EPSG::4326)

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC: Gwyniad translocation project : Phase one : a condition assessment of the potential donor population in Llyn Tegid

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Math o Gyfyngiad: Other restrictions

Cyfarwyddeb Cyfyngiadau Mynediad

Cyfyngiadau: no limitations

Testun cyfyngiadau mynediad

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

Defnyddiwch gyfyngiadau

Cyfyngiadau Defnyddio: Other restrictions

Cyfyngiadau eraill: © CNC/NRW 2003 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

Dynodydd Ffeil: 4f4c4942-4343-5764-6473-313135303438 XML

Laith Metadata: English

Dynodydd Rhiant: Freshwater Gwyniad (Coregonus lavaretus) Species Survey Data
NRW_DS116344

Math o adnodd: Dataset

Dyddiad Metadata: 2024-05-31T09:40:23.259Z

Enw Safonol Metadata: NRW

Fersiwn Metadata: 1.0

Pwynt Cyswllt

Master Reference Data Team

Natural Resources Wales, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW

http://naturalresourceswales.gov.uk/splash?orig=/

Corff Cyhoeddi

Mynediad i'r Porth

Mynediad llawn i'r porth a'r metadata.

Llyn Tegid Hydroacoustic Surveys and Gwyniad Translocation 2003

Dull adnabod

Ystod amser

Rhychwant

Rhychwant

Dosbarthiad

Ansawdd

Ansawdd Data

Allweddeiriau

Allweddair

Dyfyniad

Allweddair

Dyfyniad

System Cyfeirio Gofodol

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Cyfyngiadau

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Cyfarwyddeb Cyfyngiadau Mynediad

Testun cyfyngiadau mynediad

Defnyddiwch gyfyngiadau

Metadata

Metadata

Corff Cyhoeddi