{"id":"https://openalex.org/W7224956647","doi":"https://doi.org/10.1016/j.ecohyd.2026.100828","title":"Ichthyofaunal and hydromorphological changes downstream of a major hydroelectric dam in the Southern Balkans","display_name":"Ichthyofaunal and hydromorphological changes downstream of a major hydroelectric dam in the Southern Balkans","publication_year":2026,"publication_date":"2026-10-31","ids":{"openalex":"https://openalex.org/W7224956647","doi":"https://doi.org/10.1016/j.ecohyd.2026.100828"},"language":"en","primary_location":{"id":"doi:10.1016/j.ecohyd.2026.100828","doi":"https://doi.org/10.1016/j.ecohyd.2026.100828","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.ecohyd.2026.100828","pdf_url":null,"source":{"id":"https://openalex.org/S49770870","display_name":"Ecohydrology & Hydrobiology","issn_l":"1642-3593","issn":["1642-3593","2080-3397"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Ecohydrology &amp; Hydrobiology","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1016/j.ecohyd.2026.100828","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5033862887","display_name":"Dimitris Zogaris","orcid":"https://orcid.org/0000-0001-5986-1196","observed_orcids":["https://orcid.org/0000-0001-5986-1196"]},"institutions":[{"id":"https://openalex.org/I145722265","display_name":"University of Thessaly","ror":"https://ror.org/04v4g9h31","country_code":"GR","type":"education","lineage":["https://openalex.org/I145722265"]},{"id":"https://openalex.org/I4210131924","display_name":"Hellenic Centre for Marine Research","ror":"https://ror.org/038kffh84","country_code":"GR","type":"facility","lineage":["https://openalex.org/I4210131924"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"Dimitris Zogaris","raw_affiliation_strings":["Hydrobiology\u2013Ichthyology Lab., Department of Ichthyology and Aquatic Environment (DIAE), University of Thessaly, Volos, 38 445, Greece","Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7km Athens-Sounio Avenue, Anavyssos, 190 13, Greece"],"raw_orcid":"https://orcid.org/0000-0001-5986-1196","affiliations":[{"raw_affiliation_string":"Hydrobiology\u2013Ichthyology Lab., Department of Ichthyology and Aquatic Environment (DIAE), University of Thessaly, Volos, 38 445, Greece","institution_ids":["https://openalex.org/I145722265"]},{"raw_affiliation_string":"Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7km Athens-Sounio Avenue, Anavyssos, 190 13, Greece","institution_ids":["https://openalex.org/I4210131924"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007332052","display_name":"Elias Dimitriou","orcid":"https://orcid.org/0000-0001-6669-6897","observed_orcids":["https://orcid.org/0000-0001-6669-6897"]},"institutions":[{"id":"https://openalex.org/I4210131924","display_name":"Hellenic Centre for Marine Research","ror":"https://ror.org/038kffh84","country_code":"GR","type":"facility","lineage":["https://openalex.org/I4210131924"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Elias Dimitriou","raw_affiliation_strings":["Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7km Athens-Sounio Avenue, Anavyssos, 190 13, Greece"],"raw_orcid":"https://orcid.org/0000-0001-6669-6897","affiliations":[{"raw_affiliation_string":"Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7km Athens-Sounio Avenue, Anavyssos, 190 13, Greece","institution_ids":["https://openalex.org/I4210131924"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087290610","display_name":"\u0399\u03c9\u03ac\u03bd\u03bd\u03b1 \u0396\u03ce\u03c4\u03bf\u03c5","orcid":"https://orcid.org/0000-0002-1743-9007","observed_orcids":["https://orcid.org/0000-0002-1743-9007"]},"institutions":[{"id":"https://openalex.org/I4210131924","display_name":"Hellenic Centre for Marine Research","ror":"https://ror.org/038kffh84","country_code":"GR","type":"facility","lineage":["https://openalex.org/I4210131924"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Ioanna Zotou","raw_affiliation_strings":["Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7km Athens-Sounio Avenue, Anavyssos, 190 13, Greece"],"raw_orcid":"https://orcid.org/0000-0002-1743-9007","affiliations":[{"raw_affiliation_string":"Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7km Athens-Sounio Avenue, Anavyssos, 190 13, Greece","institution_ids":["https://openalex.org/I4210131924"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005771030","display_name":"Theocharis Vavalidis","orcid":"https://orcid.org/0000-0001-8513-462X","observed_orcids":["https://orcid.org/0000-0001-8513-462X"]},"institutions":[{"id":"https://openalex.org/I4210131924","display_name":"Hellenic Centre for Marine Research","ror":"https://ror.org/038kffh84","country_code":"GR","type":"facility","lineage":["https://openalex.org/I4210131924"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Theocharis Vavalidis","raw_affiliation_strings":["Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7km Athens-Sounio Avenue, Anavyssos, 190 13, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, 46.7km Athens-Sounio Avenue, Anavyssos, 190 13, Greece","institution_ids":["https://openalex.org/I4210131924"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040723969","display_name":"Athanasios Exadactylos","orcid":"https://orcid.org/0000-0003-3858-1958","observed_orcids":["https://orcid.org/0000-0003-3858-1958"]},"institutions":[{"id":"https://openalex.org/I145722265","display_name":"University of Thessaly","ror":"https://ror.org/04v4g9h31","country_code":"GR","type":"education","lineage":["https://openalex.org/I145722265"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Athanasios Exadactylos","raw_affiliation_strings":["Hydrobiology\u2013Ichthyology Lab., Department of Ichthyology and Aquatic Environment (DIAE), University of Thessaly, Volos, 38 445, Greece"],"raw_orcid":"https://orcid.org/0000-0003-3858-1958","affiliations":[{"raw_affiliation_string":"Hydrobiology\u2013Ichthyology Lab., Department of Ichthyology and Aquatic Environment (DIAE), University of Thessaly, Volos, 38 445, Greece","institution_ids":["https://openalex.org/I145722265"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5033862887"],"corresponding_institution_ids":["https://openalex.org/I145722265","https://openalex.org/I4210131924"],"apc_list":{"value":3420,"currency":"USD","value_usd":3420},"apc_paid":{"value":3420,"currency":"USD","value_usd":3420},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.81691526,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"26","issue":"4","first_page":"100828","last_page":"100828"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10302","display_name":"Fish Ecology and Management Studies","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10302","display_name":"Fish Ecology and Management Studies","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12014","display_name":"Fish biology, ecology, and behavior","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12319","display_name":"Fish Biology and Ecology Studies","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/1104","display_name":"Aquatic Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/ichthyofauna","display_name":"ichthyofauna","score":0.8309999704360962},{"id":"https://openalex.org/keywords/hydromorphology","display_name":"hydromorphology","score":0.8830000162124634},{"id":"https://openalex.org/keywords/hydropower-dams","display_name":"hydroelectric dams","score":0.871999979019165},{"id":"https://openalex.org/keywords/dam-impacts","display_name":"dam impacts","score":0.8550000190734863},{"id":"https://openalex.org/keywords/fish-communities","display_name":"fish assemblages","score":0.6700000166893005},{"id":"https://openalex.org/keywords/downstream-effects","display_name":"downstream effects","score":0.40799999237060547},{"id":"https://openalex.org/keywords/southern-balkans","display_name":"southern Balkans","score":0.6740000247955322}],"concepts":[{"id":"https://openalex.org/C92311004","wikidata":"https://www.wikidata.org/wiki/Q80638","display_name":"Hydroelectricity","level":2,"score":0.636900007724762},{"id":"https://openalex.org/C2776207758","wikidata":"https://www.wikidata.org/wiki/Q5303302","display_name":"Downstream (manufacturing)","level":2,"score":0.6344000101089478},{"id":"https://openalex.org/C505870484","wikidata":"https://www.wikidata.org/wiki/Q180538","display_name":"Fishery","level":1,"score":0.4368000030517578},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.4269999861717224},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.365200012922287},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.3555000126361847},{"id":"https://openalex.org/C148043351","wikidata":"https://www.wikidata.org/wiki/Q4456944","display_name":"Current (fluid)","level":2,"score":0.31310001015663147},{"id":"https://openalex.org/C76886044","wikidata":"https://www.wikidata.org/wiki/Q2883300","display_name":"Hydrology (agriculture)","level":2,"score":0.3027999997138977},{"id":"https://openalex.org/C40675005","wikidata":"https://www.wikidata.org/wiki/Q170196","display_name":"Hydropower","level":2,"score":0.2825999855995178},{"id":"https://openalex.org/C13474642","wikidata":"https://www.wikidata.org/wiki/Q43806","display_name":"Invertebrate","level":2,"score":0.260699987411499},{"id":"https://openalex.org/C186594467","wikidata":"https://www.wikidata.org/wiki/Q1429176","display_name":"Flooding (psychology)","level":2,"score":0.25110000371932983}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.ecohyd.2026.100828","doi":"https://doi.org/10.1016/j.ecohyd.2026.100828","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.ecohyd.2026.100828","pdf_url":null,"source":{"id":"https://openalex.org/S49770870","display_name":"Ecohydrology & Hydrobiology","issn_l":"1642-3593","issn":["1642-3593","2080-3397"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Ecohydrology &amp; Hydrobiology","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/j.ecohyd.2026.100828","doi":"https://doi.org/10.1016/j.ecohyd.2026.100828","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.ecohyd.2026.100828","pdf_url":null,"source":{"id":"https://openalex.org/S49770870","display_name":"Ecohydrology & Hydrobiology","issn_l":"1642-3593","issn":["1642-3593","2080-3397"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Ecohydrology &amp; Hydrobiology","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.8999999761581421,"id":"https://metadata.un.org/sdg/6","display_name":"Clean water and sanitation"}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320326537","display_name":"University of Thessaly","ror":"https://ror.org/04v4g9h31"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":58,"referenced_works":["https://openalex.org/W1179275082","https://openalex.org/W1503740240","https://openalex.org/W1860093990","https://openalex.org/W1895973273","https://openalex.org/W1966743603","https://openalex.org/W1974227648","https://openalex.org/W1982901688","https://openalex.org/W1996355482","https://openalex.org/W2008942529","https://openalex.org/W2020279526","https://openalex.org/W2020358307","https://openalex.org/W2022548822","https://openalex.org/W2023097785","https://openalex.org/W2033511538","https://openalex.org/W2043533763","https://openalex.org/W2044331734","https://openalex.org/W2070239085","https://openalex.org/W2096113236","https://openalex.org/W2104497939","https://openalex.org/W2105321454","https://openalex.org/W2125360150","https://openalex.org/W2126470430","https://openalex.org/W2146317308","https://openalex.org/W2146620255","https://openalex.org/W2227598340","https://openalex.org/W2257152518","https://openalex.org/W2277826345","https://openalex.org/W2301828265","https://openalex.org/W2765801215","https://openalex.org/W2772143960","https://openalex.org/W2796292309","https://openalex.org/W2921439312","https://openalex.org/W2946081894","https://openalex.org/W2950632909","https://openalex.org/W2969585641","https://openalex.org/W2981393623","https://openalex.org/W3024059517","https://openalex.org/W3112002945","https://openalex.org/W3118583037","https://openalex.org/W3204705301","https://openalex.org/W3208169498","https://openalex.org/W4213362575","https://openalex.org/W4213453956","https://openalex.org/W4317399355","https://openalex.org/W4319033152","https://openalex.org/W4367598808","https://openalex.org/W4379144637","https://openalex.org/W4381856043","https://openalex.org/W4385503965","https://openalex.org/W4389670382","https://openalex.org/W4389977625","https://openalex.org/W4396217033","https://openalex.org/W4400697518","https://openalex.org/W4402965575","https://openalex.org/W4405649041","https://openalex.org/W4410518825","https://openalex.org/W4416025875","https://openalex.org/W7160507896"],"related_works":["https://openalex.org/W2774956171","https://openalex.org/W69849236","https://openalex.org/W3157276715","https://openalex.org/W2357037424","https://openalex.org/W1545448693","https://openalex.org/W2589120905","https://openalex.org/W2771474723","https://openalex.org/W2976000010","https://openalex.org/W1644652973","https://openalex.org/W7223713378"],"abstract_inverted_index":{"Large":[0],"hydropower":[1,261],"dams":[2],"usually":[3],"have":[4],"serious":[5],"impacts":[6],"on":[7,48,243],"river":[8,214,262],"fish":[9,129],"communities,":[10],"yet":[11],"there":[12],"are":[13],"few":[14],"studies":[15],"documenting":[16],"their":[17],"specific":[18],"effects":[19,201],"in":[20,32,58,75,127,138,159,205,258],"the":[21,36,43,52,68,81,113,116,128,139,162,195,199,206,213,220],"Balkans":[22],"and":[23,60,98,118,155,168,189,255],"Eastern":[24],"Mediterranean":[25],"countries.":[26],"This":[27],"study":[28,239],"describes":[29],"before-and-after":[30],"changes":[31],"ichthyofaunal":[33],"composition":[34],"under":[35],"new":[37],"hydroelectric":[38,70,91],"flow":[39,185],"regimes":[40,192],"downstream":[41,141,193,207],"of":[42,67,115,174,194,202,212,219],"Ilarion":[44,82],"Hydroelectric":[45],"Dam,":[46],"located":[47,62],"Greece\u2019s":[49],"longest":[50],"river,":[51],"Aliakmon.":[53],"The":[54,77],"dam":[55,117,227],"became":[56],"operational":[57],"2012":[59],"is":[61,84,240],"approximately":[63],"7":[64],"km":[65],"upstream":[66,120],"Polyphytos":[69],"reservoir,":[71],"which":[72],"was":[73],"created":[74],"1972.":[76],"investigated":[78],"reach":[79,215],"below":[80],"Dam":[83],"thus":[85],"confined":[86],"between":[87],"two":[88],"large":[89],"artificial":[90],"reservoir":[92],"systems,":[93],"forming":[94],"a":[95],"highly":[96,259],"regulated":[97,260],"spatially":[99],"restricted":[100],"lotic\u2013lentic":[101],"transition":[102],"zone.":[103],"Contemporary":[104],"electrofishing":[105],"surveys":[106,111],"were":[107],"compared":[108],"with":[109,131,198,223],"historical":[110],"predating":[112],"construction":[114],"its":[119],"reservoir.":[121,208],"Results":[122],"indicate":[123,216],"marked":[124,150],"compositional":[125],"shifts":[126],"assemblage,":[130],"four":[132],"native":[133],"rheophilic":[134],"species":[135,148,157,165],"not":[136,241],"detected":[137],"contemporary":[140],"surveys,":[142],"while":[143],"at":[144],"least":[145],"three":[146],"other":[147],"showed":[149],"declines.":[151],"In":[152],"contrast,":[153],"generalist":[154],"lentic":[156,164],"increased":[158],"abundance,":[160],"including":[161,187],"non-native":[163],"Lepomis":[166],"gibbosus":[167],"Gambusia":[169],"holbrooki":[170],".":[171],"Our":[172],"analyses":[173],"available":[175],"hydrological":[176],"data":[177],"from":[178],"recently":[179],"installed":[180],"monitoring":[181],"stations":[182],"show":[183],"altered":[184],"conditions,":[186],"hydropeaking":[188],"modified":[190],"water-temperature":[191],"dam,":[196],"together":[197],"destabilizing":[200],"water-level":[203],"fluctuations":[204],"Furthermore,":[209],"topographic":[210],"maps":[211],"substantial":[217],"alteration":[218],"riverbed":[221],"associated":[222],"gravel":[224],"quarrying":[225],"during":[226],"construction,":[228],"conditions":[229],"that":[230,249],"may":[231,250],"also":[232],"promote":[233],"lotic":[234],"habitat":[235],"degradation.":[236],"Although":[237],"this":[238],"based":[242],"long-term":[244],"monitoring,":[245],"it":[246],"provides":[247],"insights":[248],"help":[251],"guide":[252],"further":[253],"research":[254],"adaptive":[256],"management":[257],"systems.":[263]},"counts_by_year":[],"updated_date":"2026-11-02T09:45:03.842371","created_date":"2026-10-31T00:00:00"}
