Please use this identifier to cite or link to this item:
https://biore.bio.bg.ac.rs/handle/123456789/725
Title: | The response of chironomid taxonomy- and functional trait-based metrics to fish farm effluent pollution in lotic systems | Authors: | Milošević, Djuradj Stojanović, Katarina Djurdjević, Aca Marković, Zoran Stojković Piperac, Milica Živić, Miroslav Živić, Ivana |
Keywords: | Bioassessment;Chironomidae;Community;Metric;Self organizing map;Trout farm | Issue Date: | 1-Nov-2018 | Rank: | M21a | Journal: | Environmental Pollution | Abstract: | © 2018 Elsevier Ltd The lotic habitats affected by trout farm waste are colonized with a particular invertebrate community of which chironomids are the most abundant group. However, there is little information available regarding how chironomid community structures respond to this type of pollution at the highest taxonomic resolution. Eight fish farms, together with their lotic systems as recipients, were used to test the variability of the chironomid community and its surrogates (taxonomic and functional metrics) across spatially arranged sampling sites to form a gradual decrease in the trout farm influence. The self organizing map (SOM) classified six different types of chironomid communities which were characteristic for both the control and affected habitats. The species indicator analyses listed 32 taxa as positive indicators of water pollution. The SOM and Kruskal-Wallis test revealed that the pattern of chironomid community structure obtained was mainly driven by six environmental parameters (Altitude, conductivity, distance from the outlet, hardness, HN4-N, NO3-N). Categorical principal components analysis (CATPCA) derived three models for each type of biotic metric, in which for diversity-, taxonomy- and functional feeding group-based metrics, the first two dimensions explained 55.2%, 58.3% and 55.4%, of the total variance respectively for 315 sampling sites. According to this analysis, the total number of taxa (S), abundance and the Shannon-Wiener index (H′) (as a diversity metric), as well as the proportion of Tanypodinae (as taxonomic group) and grazers/scraper (GRA) and gatherer collector (GAT)(as FFG metrics), were related to the outlet distance gradient, thus showing great potential to be used in the multimetric approach in bioassessment. The taxonomy- and functional chironomid community structure acts as a fine-tuned bioindicator of the impact of fish-farm effluent. |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/725 | ISSN: | 0269-7491 | DOI: | 10.1016/j.envpol.2018.07.100 |
Appears in Collections: | Journal Article |
Files in This Item:
File | Description | Size | Format | Existing users please |
---|---|---|---|---|
4 The response of chironomid taxonomy- and functional trait-based.pdf | 3.28 MB | Adobe PDF | Request a copy |
SCOPUSTM
Citations
20
checked on Dec 20, 2024
Page view(s)
1
checked on Dec 22, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.