Macrobenthic invertebrate energy densities and ecological status in freshwater watercourses (Friuli Venezia-Giulia, Northeast Italy)
| Autor: | Francesco Cozzoli, Elisabetta Pizzul, Alberto Basset, Marco Bertoli, Fabio Vignes, Paolo Pastorino, Gabriele Piazza, Marino Prearo |
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| Přispěvatelé: | Bertoli, M., Piazza, G., Pastorino, P., Prearo, M., Cozzoli, F., Vignes, F., Basset, A., Pizzul, E., Bertoli, Marco, Piazza, Gabriele, Pastorino, Paolo, Prearo, Marino, Cozzoli, Francesco, Vignes, Fabio, Basset, Alberto, Pizzul, Elisabetta |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Biotic indices River ecosystem Rhyacophila Insect larvae Context (language use) Aquatic Science 010603 evolutionary biology 01 natural sciences Freshwater Ecology Evolution Behavior and Systematics Trophic level Invertebrate Energy content Lotic systems biology Ecology 010604 marine biology & hydrobiology Insect larvae Freshwater Lotic systems Energy content Ecological assessment Biotic indices Baetis Ecological assessment biology.organism_classification Onychogomphus Biotic indice Environmental science |
| Zdroj: | Aquatic ecology 55 (2021): 501–518. doi:10.1007/s10452-021-09840-x info:cnr-pdr/source/autori:Bertoli, Marco; Piazza, Gabriele; Pastorino, Paolo; Prearo, Marino; Cozzoli, Francesco; Vignes, Fabio; Basset, Alberto; Pizzul, Elisabetta/titolo:Macrobenthic invertebrate energy densities and ecological status in freshwater watercourses (Friuli Venezia-Giulia, Northeast Italy)/doi:10.1007%2Fs10452-021-09840-x/rivista:Aquatic ecology (Print)/anno:2021/pagina_da:501/pagina_a:518/intervallo_pagine:501–518/volume:55 |
| DOI: | 10.1007/s10452-021-09840-x |
| Popis: | The present study provides energy density (ED) data and models for four macrobenthic invertebrate genera inhabiting freshwater lotic environments (Baetis, Hydropsyche, Rhyacophila, and Onychogomphus). Samples were collected in the hydrological freshwater network of the Region Friuli Venezia Giulia within different watercourse types (creeks, streams, rivers channels, and ditches), and energy density was directly measured using an adiabatic bomb calorimeter. Measured ED expressed in Joule g(-1) wet weight was strongly and positively correlated with percentage of dry weight (DW%) for all genera investigated (r(2) > 0.9504), allowing to obtain genus-specific predictive models based on the relationship between ED and DW%. Models were validated and showed good predictive power, as 90th percentile of observed percentage errors ranged between 4.23% and 5.18% while medians ranged between 1.32% and 2.83%. ANCOVA disclosed significant differences between the models, as those for Rhyacophila and Onychogomphus differed significantly from the others. The empirical models were used to build a dataset of estimated energy density, to assess the relationship between energy density and ecological status of the monitored riverine systems, assessed in compliance with European and Italian law by the application of four different ecological indices (ICMi, RQE_IBMR, STAR_ICMi, and LIMeco). Information regarding ED levels for freshwater macrobenthic invertebrates is still neglected in biomonitoring programs, but it could be useful to interpret some ecological situations in the context of ecological status assessment, especially in relation to the trophic condition of the investigated riverine systems. |
| Databáze: | OpenAIRE |
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