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Ecological Assessment of Rivers Under Anthropogenic Pressure: Testing Biological Indices Across Abiotic Types of Rivers

cris.lastimport.scopus2025-10-23T06:55:07Z
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dc.abstract.enThe ecological assessment of rivers under the Water Framework Directive (WFD) requires the use of biological quality elements (BQEs) across defined abiotic types of rivers. However, limited evidence exists on how well biological indices perform across multiple typological classes, particularly under the influence of complex, overlapping stressors. This study evaluated the diagnostic performance of four biological indices (IO—diatoms, MIR—macrophytes, MMI_PL—benthic macroinvertebrates, and EFI + PL—fish) in 16 river sites in southern Poland. These were classified into four abiotic types (5, 6, 12, and 17) and subjected to varying levels of human pressure. Biological, physical and chemical, and hydromorphological data were collected along environmental gradients including conductivity, nutrient enrichment, and habitat modification. Statistical analyses were used to evaluate patterns in community composition and index responsiveness. The IO and MMI_PL indices were the most consistent and sensitive in distinguishing between reference and degraded river conditions. MIR and EFI + PL were more variable, especially in lowland rivers, and showed stronger associations with habitat structure and oxygen levels. Conductivity emerged as a key driver of biological responses across all BQEs, with clear taxonomical shifts observed. The results support the need to consider both typological context and local environmental variation in ecological classification. The findings underscore the need for typology-aware, pressure-specific biomonitoring strategies that combine multiple organism groups and integrate continuous environmental variables. Such approaches can enhance the ecological realism and diagnostic accuracy of river assessment systems, supporting more effective water resource management across diverse hydroecological contexts.
dc.affiliationWydział Inżynierii Środowiska i Inżynierii Mechanicznej
dc.affiliation.instituteKatedra Ekologii i Ochrony Środowiska
dc.contributor.authorHalabowski, Dariusz
dc.contributor.authorLewin, Iga
dc.contributor.authorBąk, Małgorzata
dc.contributor.authorPłaska, Wojciech
dc.contributor.authorRosińska, Joanna
dc.contributor.authorRechulicz, Jacek
dc.contributor.authorDukowska, Małgorzata
dc.date.access2025-07-25
dc.date.accessioned2025-07-25T08:53:44Z
dc.date.available2025-07-25T08:53:44Z
dc.date.copyright2025-06-18
dc.date.issued2025
dc.description.abstract<jats:p>The ecological assessment of rivers under the Water Framework Directive (WFD) requires the use of biological quality elements (BQEs) across defined abiotic types of rivers. However, limited evidence exists on how well biological indices perform across multiple typological classes, particularly under the influence of complex, overlapping stressors. This study evaluated the diagnostic performance of four biological indices (IO—diatoms, MIR—macrophytes, MMI_PL—benthic macroinvertebrates, and EFI + PL—fish) in 16 river sites in southern Poland. These were classified into four abiotic types (5, 6, 12, and 17) and subjected to varying levels of human pressure. Biological, physical and chemical, and hydromorphological data were collected along environmental gradients including conductivity, nutrient enrichment, and habitat modification. Statistical analyses were used to evaluate patterns in community composition and index responsiveness. The IO and MMI_PL indices were the most consistent and sensitive in distinguishing between reference and degraded river conditions. MIR and EFI + PL were more variable, especially in lowland rivers, and showed stronger associations with habitat structure and oxygen levels. Conductivity emerged as a key driver of biological responses across all BQEs, with clear taxonomical shifts observed. The results support the need to consider both typological context and local environmental variation in ecological classification. The findings underscore the need for typology-aware, pressure-specific biomonitoring strategies that combine multiple organism groups and integrate continuous environmental variables. Such approaches can enhance the ecological realism and diagnostic accuracy of river assessment systems, supporting more effective water resource management across diverse hydroecological contexts.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if3,00
dc.description.number12
dc.description.points100
dc.description.versionfinal_published
dc.description.volume17
dc.identifier.doi10.3390/w17121817
dc.identifier.issn2073-4441
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/3971
dc.identifier.weblinkhttps://www.mdpi.com/2073-4441/17/12/1817
dc.languageen
dc.pbn.affiliationenvironmental engineering, mining and energy
dc.relation.ispartofWater (Switzerland)
dc.relation.pagesart. 1817
dc.rightsCC-BY
dc.sciencecloudsend
dc.share.typeOPEN_JOURNAL
dc.subject.enriver typology
dc.subject.enWater Framework Directive
dc.subject.enmultimetric assessment
dc.subject.endiatoms
dc.subject.enmacrophytes
dc.subject.enmacroinvertebrates
dc.subject.enfish
dc.subject.ensalinity gradient
dc.titleEcological Assessment of Rivers Under Anthropogenic Pressure: Testing Biological Indices Across Abiotic Types of Rivers
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue12
oaire.citation.volume17