Over 200,000 kilometers of free-flowing river habitat in Europe is altered due to impoundments.

<b>Fish guild data and results.xlsx</b> - fish guilds data used for river types classification. The file contains proportions of each fish guild at non-disturbed sites. \n \n <i>Fields:</i> \n Site_code - Non-disturbed site (NDS) identifier as in the Intercalibration Dataset \n FCMacHT - Fish Community Macrohabitat Type \n HYMO.type - River type derrived from broad environmental characteristics only \n Highly rheophilic, intolerant species - Fish guild proportion of intolerant highly rheophilic species \n Rheophilic benthic species, preferring sandy-gravel bottom substrate - Fish guild proportion of rheophilic benthic species preferring sandy-gravel bottom substrate \n Rheophilic water column species, preferring sandy-gravel bottom substrate - Fish guild proportion of rheophilic water column species preferring sandy-gravel bottom substrate \n Limnophilic benthic species of moderate tolerance - Fish guild proportion of limnophilic benthic species of moderate tolerance \n Limnophilic water column species of moderate tolerance - Fish guild proportion of limnophilic water column species of moderate tolerance \n Intolerant, rheophilic benthic species, preferring detritus or pelal bottom substrate - Fish guild proportion of intolerant rheophilic benthic species preferring detritus or pelal bottom substrate \n Intolerant, water column species - Fish guild proportion of intolerant water column species \n Limnophilic lithophilic species of moderate tolerance - Fish guild proportion of limnophilic lithophilic species of moderate tolerance \n Limnophilic phytophilic species of moderate tolerance - Fish guild proportion of limnophilic phytophilic species of moderate tolerance \n Benthic species of moderate tolerance - Fish guild proportion of benthic species of moderate tolerance \n Generalists - tolerant species - Fish guild proportion of tolerant generalist species \n \n \n <b>NDS_attr.csv</b> - broad environmental attributes for non-disturbed sites \n <b>riv_attr.csv</b> - broad environmental attributes for river segments generated with CART results \n \n <i>Fields:</i> \n WSO1_ID, Riversegment identifier as in CCM2.1 dataset \n W_CATCH, Catchment size upstream a given riversegment, derived from CCM2.1 dataset \n W_SLOPE, Slope of river segment, derived from CCM2.1 dataset \n W_STRAHL, Strahler stream order of river segment, derived from CCM2.1 dataset \n W_ALT, Mean altitude of riversegment, derived from CCM2.1 dataset \n Z_GEO3_SI, Geology of immediate catchment of riversegment classified as siliceaous (1,0 values), derrived from IHME1500 v 1.2 \n Z_GEO3_CA, Geology of immediate catchment of riversegment classified as calcareous (1,0 values), derrived from IHME1500 v 1.2 \n Z_GEO3_OR, Geology of immediate catchment of riversegment classified as organic (1,0 values), derrived from SGDB v 2.0 \n EnZ_01ALN, Environmental Zone of immediate catchment of riversegment based on EnZ - Alpine North zone (1,0 values) \n EnZ_02BOR, Environmental Zone of immediate catchment of riversegment based on EnZ - Boreal zone (1,0 values) \n EnZ_03NEM, Environmental Zone of immediate catchment of riversegment based on EnZ - Nemoral zone (1,0 values) \n EnZ_04ATN, Environmental Zone of immediate catchment of riversegment based on EnZ - Atlantic North zone (1,0 values) \n EnZ_05ALS, Environmental Zone of immediate catchment of riversegment based on EnZ - Atlantic South zone (1,0 values) \n EnZ_06CON, Environmental Zone of immediate catchment of riversegment based on EnZ - Continental zone (1,0 values) \n EnZ_07ATC, Environmental Zone of immediate catchment of riversegment based on EnZ - Atlantic Central zone (1,0 values) \n EnZ_08PAN, Environmental Zone of immediate catchment of riversegment based on EnZ - Pannonian zone (1,0 values) \n EnZ_09LUS, Environmental Zone of immediate catchment of riversegment based on EnZ - Lusitanian zone (1,0 values)\n EnZ_10ANA, Environmental Zone of immediate catchment of riversegment based on EnZ - Anatolian zone (1,0 values) \n EnZ_11MDM, Environmental Zone of immediate catchment of riversegment based on EnZ - Mediterranean Mountains zone (1,0 values) \n EnZ_12MDN, Environmental Zone of immediate catchment of riversegment based on EnZ - Mediterranean North zone (1,0 values) \n EnZ_13MDS, Environmental Zone of immediate catchment of riversegment based on EnZ - Meaditerranean South zone (1,0 values) \n FCMacHT, Calculated Fish Community Macrohabitat Type \n \n\n <b>barriers_results.csv</b> - barriers analysis results for dams, weirs and sluices with height, including macrohabitat type, wRHp, river segment slope, estimated impoundment length of known barriers, estimated remaining habitat for known barriers \n \n <i>Fields:</i> \n GUID, barrier ID based on AMBER Barrier Atlas \n Height, barrier height as in AMBER Barrier Atlas \n type_, barrier type as in AMBER Barrier Atlas \n WSO1_ID, Riversegment identifier as in CCM2.1 dataset \n FCMacHT, Fish Community Macrohabitat Type \n wRHp, remaining Riverine Habitat proportion \n slope, river segment slope (%) derived from CCM2.1. \n impound_l, estimated imboundment length, calculated as height/slope (m) \n b_wRHp, estimated length of the remaining riverine habitat proportion (wRHp) of a barrier impounded section (m), calculated as: [wRHp]/100*[impound_l] \n \n \n <b>riv_results.csv</b> - river segments as in CCM2.1 with calculated values of macrohabitat types, wRHp for each barrier type and madian wRHp for a catchment \n \n <i>Fields:</i> \n FCMacHT, Calculated Fish Community Macrohabitat Type \n Sens_score, FCMacHT sensitivity scores \n Sens_class, FCMacHT sensitivity class (highest, moderate, lowest) \n wRHp_dam, wRHp value for dams \n wRHp_weir, wRHp value for weirs \n wRHp_sluic, wRHp value for sluices \n wRHp_culv, wRHp value for culverts \n wRHp_ford, wRHp value for fords \n wRHp_ramp, wRHp value for ramps \n med_wRHp, median value of wRHp for a catchment \n \n \n <b>EDFigure1.pdf</b> - high resolution version of Supplementary Figure 1. \n \n \n Source datasets: \n \n <b>IC:</b> Data located at Joint Research Centre. Access can be granted upon written request. \n <b>AMBER Barrier Atlas:</b> AMBER Consortium. The AMBER Barrier Atlas. A Pan-European database of artificial instream barriers. Version 1.0 June 29th 2020. [dataset]. (2020).\n <b>CCM 2.1:</b> De Jager, A. &amp; Vogt, J. Rivers and Catchments of Europe - Catchment Characterisation Model (CCM). [dataset]. (European Commission, Joint Research Centre (JRC), 2007). \n <b>IHME1500:</b> BgR &amp; UNESCO. International Hydrogeological Map of Europe 1:1,500,000 (IHME1500). Digital map data v1.2. (Federal Institute for Geosciences and Natural Resources (BGR), 2019). \n <b>SGDB:</b> Soil Geographical Database of Eurasia at scale 1:000,000 version 4 beta [dataset]. in The European Soil Database distribution version 2.0, CD-ROM vol. EUR 19945 EN (European Commission, 2004). \n <b>EnZ:</b> Metzger, M. J. The Environmental Stratification of Europe [dataset]. (University of Edinburg, 2018). \n