Comparison of fish assemblage diversity in natural and artificial rip-rap habitats in the littoral zone of a large river (River Danube, Hungary)

Tibor Eros, Balázs Tóth, András Sevcsik, Dénes Schmera

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

We studied day-night patterns in fish diversity in natural, gravel-sand stretches and boulder covered rip-rap habitats in the littoral zone of the River Danube. Sample-based rarefaction indicated marked differences in species richness between day and night, and smaller differences between habitats for both day and night. Whereas, individual-based rarefaction indicated no such substantial differences in species richness. However, distinct fish assemblages were found based on relative abundance data, and species of great conservation concern tended to link to natural habitats. The diversity of biological traits/attributes were generally higher in rip-rap habitats. The differences in fish assemblage characteristics between habitats revealed the importance of gravel-sand habitats in maintaining natural assemblages and that riprap sections increase compositional beta diversity at the mesohabitat scale.

Original languageEnglish
Pages (from-to)88-105
Number of pages18
JournalInternational Review of Hydrobiology
Volume93
Issue number1
DOIs
Publication statusPublished - Feb 1 2008

    Fingerprint

Keywords

  • Beta diversity
  • Biological traits diversity
  • Habitat modification
  • Riverine fish
  • Sampling effort

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

Cite this