next
previous
items

Figure

Loss of accessibility for migratory fish due to dams in major European river basins

Figure Created 09 Oct 2012 Published 22 Oct 2012 Last modified 06 Nov 2017
1 min read
Orange: river basins with large dams (at least 10 m high) not allowing normal fish passage.

Hard copy

Loss of accessibility for migratory fish due to dams in major European river basins - 1860 - eps file
Loss of accessibility for migratory fish due to dams in major European river basins - 1910 - eps file
Loss of accessibility for migratory fish due to dams in major European river basins - 1960 - eps file
Loss of accessibility for migratory fish due to dams in major European river basins - 2010 - eps file

Metadata

information.png Rights:
EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
information.png Owners:
European Environment Agency (EEA)
information.png Figure type:
Map

Related content

Based on data

Data
Archived
Waterbase - Lakes Waterbase is the generic name given to the EEA's databases on the status and quality of Europe's rivers, lakes, groundwater bodies and transitional, coastal and marine waters, and on the quantity of Europe's water resources
Data European catchments and Rivers network system (Ecrins) Version 1, Jun. 2012 - Ecrins is acronym for European catchments and Rivers network system. It is a geographical information system of the European hydrographical systems with a full topological information. Ecrins is a composite system made from the CCM developed by the JRC, Corine land Cover, WFD reporting elements, etc. It is organised from a layer of 181,071 “functional elementary catchments (FECs)” which average size is ~62 km2, fully connected with explicit identifier (ID) relationships and upstream area. Catchments are grouped as sub-basins, river basin districts (actual and functional to meet hydrographical continuity). The catchments are as well organised according to their sea shore of emptying to meet Marine Strategy delineations. Catchments are drained by 1,348,163 river segments, sorted as “main drains” (connecting together the FECs) and secondary drains (internal to a FEC). river segments mimic the natural drainage, however fulfilling the topological constraint of “0,1 or 2 upstreams, single or 0 downstream”. Each segment is populated with distance to the sea, to ease further processing. They are connected to elementary catchments and nodes documented with altitude. Segments are as well documented with a “dummy river code”, fully populated that earmark each segment with the most distant to the outlet in each drainage basin and, everywhere this has been possible, with a “true river” ID based on river naming. A layer of lakes and dams has been elaborated. Lakes polygons (70,847) are taken from Corine Land cover , WFD Art. 13 and in some cases, from CCM “water layer”. Lakes inlets and outlets are set with the segment ID and where relevant, the dams making the lake is documented. All lakes which depths and volume was found have been updated. Version 1.0 here presented still contain some topological errors (e.g. incorrect segment branching), because inaccurate geometry. They are noted and a correction procedure is underway.

Used in publications

Permalinks

Geographic coverage

Temporal coverage

For references, please go to https://www.eea.europa.eu/data-and-maps/figures/loss-of-accessibility-for-migratory or scan the QR code.

PDF generated on 17 Jan 2021, 08:26 AM

EEA Page URL QR

Topics

Document Actions
The EEA is an agency of the European Union

Engineered by: EEA Web Team

Software updated on 12 January 2021 12:56 from version 20.12.5

Software version: EEA Plone KGS 21.1.12

Code for developers

Systems Status

Legal notice

Creative commons license

CMS login