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dc.contributor.authorPyrzanowski, Kacper
dc.contributor.authorZięba, Grzegorz
dc.contributor.authorDukowska, Małgorzata
dc.contributor.authorSmith, Carl
dc.contributor.authorPrzybylski, Mirosław
dc.identifier.citationPyrzanowski , K , Zięba , G , Dukowska , M , Smith , C & Przybylski , M 2019 , ' The role of detritivory as a feeding tactic in a harsh environment – a case study of weatherfish ( Misgurnus fossilis ) ' , Scientific Reports , vol. 9 , 8467 .
dc.identifier.otherPURE: 259390558
dc.identifier.otherPURE UUID: d8b2c654-1278-4e46-b3f3-2b6141a28f90
dc.identifier.otherRIS: urn:6B36AAD82D92E30814BEAECA177070AC
dc.identifier.otherRIS: Pyrzanowski2019
dc.identifier.otherORCID: /0000-0003-3285-0379/work/58984296
dc.identifier.otherScopus: 85067253453
dc.identifier.otherWOS: 000470962100031
dc.descriptionThis study was supported by the University of Łódź, Grant No. B1711000001529.02 (grants for young scientists).en
dc.description.abstractThe weatherfish (Misgurnus fossilis) is a species that is tolerant of unfavourable environmental conditions and can survive low dissolved oxygen concentrations and high water temperatures. Although this species occurs across almost the whole of Europe, and is protected in many countries, relatively little is known regarding its ecology. To determine the diet of weatherfish, 120 individuals from an artificial drainage canal in central Poland were collected in two seasons (spring and late summer) with contrasting abiotic condition (oxygen concentration, water temperature and transparency). Analysis of gut fullness showed that weatherfish consumed a greater quantity of food in spring (0.92 ± 0.90) compared with summer (0.20 ± 0.26). Contrary to other cobitid taxa, weatherfish fed actively during daytime in both seasons. An estimate of the importance of each dietary component indicated that the most important food categories were chironomids, copepods, Asellus aquaticus and detritus. SIMPER analysis indicated that these four categories together constituted over 65.8% of cumulative dissimilarity in the diet between seasons. Additionally, trophic niche breadth differed significantly between seasons. The study demonstrated that the weatherfish is an opportunistic feeder, consuming large quantities of detritus despite possessing a gut morphology that is atypical of a detritivore. The quantity of detritus in the gut of weatherfish was positively associated with fish total length and varied seasonally, with a greater quantity of detritus in the diet in late summer. These results demonstrate the importance of detritus as a source of energy, particularly during periods of scarcity of alternative prey categories.
dc.relation.ispartofScientific Reportsen
dc.rightsCopyright © The Author(s) 2019. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
dc.subjectQH301 Biologyen
dc.titleThe role of detritivory as a feeding tactic in a harsh environment – a case study of weatherfish (Misgurnus fossilis)en
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.description.statusPeer revieweden

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