4f4c4942-4343-5764-6473-313138313038 English NRW_DS23774 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2025-12-23T14:30:53.715Z NRW 1.0 wel British National Grid (EPSG::27700) Investigating the Behaviour and Ecology of the Glutinous Snail Myxas glutinosa in Field Conditions in Llyn Tegid (2016) Investigating the Behaviour and Ecology of the Glutinous Snail Myxas glutinosa in Field Conditions in Llyn Tegid (2016) Ymchwilio Ymddygiad ac Ecoleg y Falwen Ludiog Myxas glutinosa mewn Amodau allan yn y Maes yn Llyn Tegid (2016) 2017-03-31 NRW_DS118108 The Glutinous Snail Myxas glutinosa is an aquatic species restricted to a single known population in Britain located in Llyn Tegid. Following on from successful captive breeding experiments and their revelations, proposals were made to use the knowledge acquired to begin field experiments that might lead to improved understanding of Myxas natural ecology and appropriate management procedures. The data and associat report comprises the instigation of that work. The experiments proposed are a tentative method to probe into the life of Myxas and answer the following questions: Does Myxas migrate up and down the shore as lake levels recede and advance? Do changes in water level benefit or harm the snail population or are they benign? What substrates favour Myxas? What physicochemical differences occur across Llyn Tegid and what effect do they have on Myxas? Would Myxas benefit from the placement of refuges at particular sites around the lake and if so, where and of what material? Is it possible to manage habitats with simple methods that benefit Myxas and could be employed to return Myxas to its former range? The first stage has been completed with the installation of bespoke concrete refuges and a brief second inspection of these has already begun to provide some insight into the life of wild Myxas in the lake and an opportunity to begin mapping areas of the lake bed where Myxas occurs. The Glutinous Snail Myxas glutinosa is an aquatic species restricted to a single known population in Britain located in Llyn Tegid. Following on from successful captive breeding experiments and their revelations, proposals were made to use the knowledge acquired to begin field experiments that might lead to improved understanding of Myxas natural ecology and appropriate management procedures. The data and associat report comprises the instigation of that work. The experiments proposed are a tentative method to probe into the life of Myxas and answer the following questions: Does Myxas migrate up and down the shore as lake levels recede and advance? Do changes in water level benefit or harm the snail population or are they benign? What substrates favour Myxas? What physicochemical differences occur across Llyn Tegid and what effect do they have on Myxas? Would Myxas benefit from the placement of refuges at particular sites around the lake and if so, where and of what material? Is it possible to manage habitats with simple methods that benefit Myxas and could be employed to return Myxas to its former range? The first stage has been completed with the installation of bespoke concrete refuges and a brief second inspection of these has already begun to provide some insight into the life of wild Myxas in the lake and an opportunity to begin mapping areas of the lake bed where Myxas occurs. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Hughes Natural Resources Wales, Unit 19, Glan y Nant, Mold Business Park, Mold, Flintshire, CH7 1XP Ian.Hughes@cyfoethnaturiolcymru.gov.uk Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Habitats and biotopes Species distribution Protected sites GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme glutinous snail myxas glutinosa autecology NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations © 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. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Open Government Licence English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 GWYNEDD - GWYNEDD -3.701 -3.5501 52.8438 52.9353 2016-10-13 2017-01-26 Hughes, I. (2017), Instigation of actions to investigate the behaviour and ecology of the glutinous snail Myxas glutinosa in field conditions in Llyn Tegid in 2016, NRW Evidence Report No 199: 41pp., Natural Resources Wales, Bangor. Instigation of actions to investigate the behaviour and ecology of the Glutinous Snail Myxas glutinosa in field conditions in Llyn Tegid in 2016 Database [A] The final report in Microsoft Word and Adobe PDF formats. [B] Species records, which are held on the NRW Recorder 6 database. https://registry.nbnatlas.org/public/show/dr1212 WWW:LINK-1.0-http--link Data Download 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 2010-12-08 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false Surveys were by visual searches and stone-turning. Artificial refugia have been installed at various points within the lake. Surveys were by visual searches and stone-turning. Artificial refugia have been installed at various points within the lake.