Biological reservoirs (affluents) SDAGE 2016-2021 in the Rhine-Meuse basin

L''article L.214-17 of the code of l''environment defines as biological reservoir a list of courses d'' water, parts of courses d'' water or canals among those that are in very good ecological status or identified by the master schemes of '' water development and management (SDAGE) as playing the role of biological reservoir necessary to maintain or to maintain; a watershed or in which complete protection of migratory fish living alternately in freshwater and saltwater is required, on which no authorisation or concession can be granted for the construction of new works s'' they constitute an obstacle to ecological continuity. L''article R.214-108 of the code of l'' complete environment that biological reservoirs are those that include one or more breeding or zones of reproduction or of #x27;'habitat of species identified in #x27;' Annex V to the WFD as#x27;' quality elements for the definition of good ecological status (phytoplanktons, macrophytes and phytobenthos, invertebrate benthic fauna or #x27;'ichtyofaune), and allow their distribution in one or more watercourses of the watershed. A biological reservoir can be: — an elementary section of courses d'' water, or an aggregation of elementary sections, — a mass of {\#x27;'water as defined in the WFD. Maps and lists of biological reservoirs, without tributaries, are contained in the cartographic annexes of the SDAGE: — District Rhine: cards 23 and 24, — District Meuse and Sambre: map #13. __Origin__ The biological reservoirs necessary to maintain or achieve the good ecological status of watercourses, referred to in I.1 of Article L.214-17 of the Environmental Code, are listed in the cartographic annexes to the SDAGE. Article R214-108 of the Environmental Code defines biological reservoirs as ‘rivers, part of rivers or canals which comprise one or more areas of breeding or habitat of species of phytoplankton, macrophytes and phytobenthos, benthic invertebrate fauna or ichtyofauna, and allow their distribution in one or more rivers in the catchment area’. They are therefore nursery sectors capable of supplying the species covered by Annex 5 to the WFD that will be able to colonise impoverished areas. A number of biological reservoirs have been defined in SDAGE 2010-2015, the list is listed in the cartographic annexes (TOME 6 p28 to p37, and TOME 7 p17-19 of the 2016-2021 SDAGE project). DATA QUALITY: The data was carried out: — from the CARTHAGE BD for certain sections, — certainly by digitisation for d'' other courses of \#x27;' water (does not correspond to the CARTHAGE BD or the hydrography theme of the TOPO BD). __Partner organisations__ DREAL Grand Est [ex-Lorraine] (Regional Directorate for the Environment, Environment, Planning and Housing Grand Est), JOGUET-RECCORDON __Links annexes__ * [XML metadata view](http://ogc.geo-ide.developpement-durable.gouv.fr/csw/all-dataset?REQUEST=GetRecordById&SERVICE=CSW&VERSION=2.0.2&RESULTTYPE=results&elementSetName=full&TYPENAMES=gmd:MD_Metadata&OUTPUTSCHEMA=http://www.isotc211.org/2005/gmd&ID=fr-120066022-jdd-57f67fd8-d0da-4297-8848-3d2a9e825309) * [basic URL of wms/wfs services on the Internet](http://ogc.geo-ide.developpement-durable.gouv.fr/wxs?map=/opt/data/carto/geoide-catalogue/1.4/org_38150/c52d94bc-d91b-4eab-96b3-c831b7249afe.internet.map) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/a67c557209ece62a88b1916e8271df8c9eff660c)