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Fish assemblages and stream hydraulics: consistent relations across spatial scales and regions

Abstract : General relationships between organisms and their habitat, consistent across spatial scales and regions, suggest the existence of repeatable ecological processes and are useful for the management of stream networks. From published data, we defined four guilds of European fish species with contrasting preferences for microhabitat hydraulics within stream reaches. At the scale of stream reaches and across 139 French sites (590 460 fishes sampled), we analysed how fish guild proportions were related to reach hydraulics (proportion of pools vs. riffles %POOL; median discharge by unit width Q50/W). The strongest correlations were observed between two fish guilds and %POOL ( p
Mots-clés : CEMAGREF BELY LHQ
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Submitted on : Friday, May 15, 2020 - 12:30:44 PM
Last modification on : Thursday, March 4, 2021 - 10:22:03 AM

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N. Lamouroux, Franck Cattanéo. Fish assemblages and stream hydraulics: consistent relations across spatial scales and regions. River Research and Applications, Wiley, 2006, 22, pp.727-737. ⟨10.1002/rra.931⟩. ⟨hal-02588144⟩

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