Faunistic composition and larval community structure of Trichoptera in the Avia River Basin (Ourense, NW Spain)

  1. Alvarez Troncoso, Romina
  2. Garrido, Josefina
Journal:
NACC: Nova acta científica compostelana. Bioloxía

ISSN: 1130-9717

Year of publication: 2019

Issue: 26

Pages: 2

Type: Article

More publications in: NACC: Nova acta científica compostelana. Bioloxía

Abstract

The fauna of Trichoptera larvae in the Avia River Basin and their ecological preferences were analysed in thisstudy. We sampled ten sites with different types of substrate that were characterised in situ according to the predominant material type: macrophytes, moss and hard substrates (pebbles, cobbles and sand). Hierarchical clustering was used to test for significant differences in locations regarding the diversity and the abundance among material types, and a canonical correspondence analysis was used to test for significant differences in physico and chemical variables and species among sampling sites. We found that species such as Rhyacophila munda were related to high mineralization values as other authors express, whereas others, such as Micrasema sp. “gr. moestum” and Tinodes foedellus were found in high oxygen levels.

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