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2024-03-11Zeitschriftenartikel DOI: 10.18452/28548
Effects of mining activities on fish communities and food web dynamics in a lowland river
dc.contributor.authorScharnweber, Kristin
dc.contributor.authorScholz, Carolin
dc.contributor.authorSchippenbeil, Victor
dc.contributor.authorMilano, Stefania
dc.contributor.authorHühn, Daniel
dc.date.accessioned2024-04-22T12:22:36Z
dc.date.available2024-04-22T12:22:36Z
dc.date.issued2024-03-11none
dc.date.updated2024-04-16T08:06:11Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/29184
dc.description.abstractFish communities of streams and rivers might be substantially subsidized by terrestrial insects that fall into the water. Although such animal‐mediated fluxes are increasingly recognized, little is known about how anthropogenic perturbations may influence the strength of such exchanges. Intense land use, such as lignite mining, may impact a river ecosystem due to the flocculation of iron (III) oxides, thus altering food web dynamics. We compared sections of the Spree River in North‐East Germany that were greatly influenced by iron oxides with sections located downstream of a dam where passive remediation technologies are applied. Compared to locations downstream of the dam, the abundance of benthic macroinvertebrates at locations of high iron concentrations upstream of the dam was significantly reduced. Similarly, catch per unit effort of all fish was significantly higher in locations downstream of the dam compared to locations upstream of the dam, and the condition of juvenile and adult piscivorous pike Esox lucius was significantly lower in sections of high iron concentrations. Using an estimate of short‐term (i.e., metabarcoding of the gut content) as well as longer‐term (i.e., hydrogen stable isotopes) resource use, we could demonstrate that the three most abundant fish species, perch Perca fluviatilis, roach Rutilus rutilus, and bleak Alburnus alburnus, received higher contributions of terrestrial insects to their diet at locations of high iron concentration. In summary, lotic food webs upstream and downstream of the dam greatly differed in the overall structure with respect to the energy available for the highest tropic levels and the contribution of terrestrial insects to the diet of omnivorous fish. Therefore, human‐induced environmental perturbations, such as river damming and mining activities, represent strong pressures that can alter the flow of energy between aquatic and terrestrial systems, indicating a broad impact on the landscape level.eng
dc.description.sponsorshipDeutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
dc.description.sponsorshipFischereiabgabe Brandenburg, Ministerium für Landwirtschaft, Umwelt und Klimaschutz des Landes Brandenburg
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY 4.0) Attribution 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectacid mining drainageeng
dc.subjectaquatic‐terrestrial couplingeng
dc.subjectbenthic invertebrateseng
dc.subjectbrowningeng
dc.subjectmetabarcodingeng
dc.subjectδ2Heng
dc.subject.ddc590 Tiere (Zoologie)none
dc.titleEffects of mining activities on fish communities and food web dynamics in a lowland rivernone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/29184-0
dc.identifier.doihttp://dx.doi.org/10.18452/28548
dc.type.versionpublishedVersionnone
local.edoc.pages12none
local.edoc.type-nameZeitschriftenartikel
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
dc.description.versionPeer Reviewednone
dc.identifier.eissn2045-7758
dcterms.bibliographicCitation.doi10.1002/ece3.11111
dcterms.bibliographicCitation.journaltitleEcology and evolutionnone
dcterms.bibliographicCitation.volume14none
dcterms.bibliographicCitation.issue3none
dcterms.bibliographicCitation.articlenumbere11111none
dcterms.bibliographicCitation.originalpublishernameJohn Wiley & Sons, Inc.none
dcterms.bibliographicCitation.originalpublisherplace[Erscheinungsort nicht ermittelbar]none
bua.departmentMathematisch-Naturwissenschaftliche Fakultätnone

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