Naslov
Effects of physical-chemical parameters on the EPT assemblages in surface waters in Pannonian Ecoregion

Autori
Kladarić, Lidija ; Ćuk, Renata ; Dukić, Ivor ; Marinović Ruždjak, Andrea

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Book of Abstracts of the 9th Symposium with International Participation "Kopački Rit: Past, Present, Future 2020" / Ozimec, Siniša ; Bogut, Irella ; Bogdanović, Tomislav ; Jurčević Agić, Ivančica ; Rožac, Vlatko ; Stević, Filip ; Popović, Željko ; Bolšec, Boris ; Vereš, Marija - Kopačevo, 2020, 180-181

Skup
9. Simpozij s međunarodnim sudjelovanjem Kopački rit - jučer, danas, sutra

Mjesto i datum
Kopačevo, Hrvatska, 26.09.2019. - 27.09.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Ephemeroptera ; Plecoptera ; Trichoptera ; nutrients ; water quality

Sažetak
In this work, we investigated the relationship between five biological metrics and the physical- chemical parameters used in water quality assessment in watercourses in the Pannonian ecoregion (ER 11). Applied biological metrics: number of taxa of: Ephereroptera (E), Plecoptera (P) and Trichoptera (T), the number of EPT taxa (EPT) and the proportion of EPT specimens (%EPT) within the macroinvertebrate sample are usually connected with good water quality since they mostly refer to sensitive macroinvertebrate taxa. Data used in this study originate from the national monitoring program of surface water quality within the 8-year period (2010-2017). In total, 332 samples of macroinvertebrates were analyzed from 239 sampling stations. All biological samples were collected according to AQEM sampling protocol. The physical- chemical parameters (water temperature, pH, conductivity, total suspended solids (TSS), alkalinity, harness, ammonia, nitrite, nitrate, total nitrogen, inorganic nitrogen, organic nitrogen, orthophosphate and total phosphorous) were analyzed according to standard analytical methods for assessment of surface water quality (ISO norms), in the year when samples of macroinvertebrates were collected. Using Spearman correlation coefficient, with p<0, 05, statistical analysis showed significant negative correlation between biological metrics and nutrients in water (ammonia, nitrite, nitrate, total nitrogen, inorganic and organic nitrogen, orthophosphate and total phosphorus). The best results was obtained between E, P, T, EPT, %EPT and orthophosphate (-0, 245, -0, 309, -0, 230, -0, 288, -0, 168 respectively). Also, total nitrogen significantly correlated with E and %EPT (-0, 293, -0, 193 respectively), while no significant correlation with nitrates have been found during this investigation. Applied statistical calculation, highlights %EPT as the best biological metric responding to nutrient concentration.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija, Biologija

POVEZANOST RADA