The impact of multiple stressors on the biomarkers response in gills and liver of freshwater breams during different seasons
2017
Аутори:
Kostić, JovanaKolarević, Stoimir
Kračun-Kolarević, Margareta
Aborgiba, Mustafa
Gačić, Zoran
Paunović, Momir
Višnjić-Jeftić, Željka
Rašković, Božidar
Poleksić, Vesna
Lenhardt, Mirjana
Vuković-Gačić, Branka
Тип документа:
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт:
Biomarkers attract increasing attention in environmental studies, as a tool for detection of exposure and effects of pollution, from both natural and anthropogenic sources. This study aims to assess the impact of multiple stressors during distinctive seasons, covering also extreme hydrological events (extensive flooding in the mid May 2014), on different levels of biological organization in the liver and gills of three closely related freshwater breams. Our previous study on DNA damage in blood cells of these specimens showed increased DNA damage in June 2014, one month after the flooding event. As a continuation of that research, the present study was conducted. As a biomarker of exposure DNA damage was measured by applying the alkaline comet assay, while histopathological alterations were monitored as a biomarker of effect. Additionally, concentrations of metals and metalloids in gills, liver and muscle were assessed. Sampling of fish tissues was performed in 2014, during winter (January and February), spring (March and early June) and summer (late June, July and August). Significant seasonal difference in DNA damage was observed for both tissues. During spring and summer the level of DNA damage in gills was significantly higher when compared to the liver. Histopathological analyses showed higher frequency of alterations in gills during spring, and in liver during summer, but without a significant seasonal difference. Gills had the highest concentration of metals and metalloids during the spring and summer, and liver during winter. Muscle was the least affected tissue during all three seasons. This study highlighted the importance of the multiple biomarker approach and the use of different fish tissues in assessment of surface water pollution.
Кључне речи:
The Sava River; Biomonitoring; Comet assay; Histopathology; ICP-OES; Seasonal variationИзвор:
Science of The Total Environment, 2017, 601-602, 1670-1681Финансирање / пројекти:
- Рибе као биоиндикатори стања квалитета отворених вода Србије (RS-MESTD-Basic Research (BR or ON)-173045)
- Managing the effects of multiple stressors on aquatic ecosystems under water scarcity (EU-FP7-603629)
DOI: 10.1016/j.scitotenv.2017.05.273
ISSN: 0048-9697
PubMed: 28618658
WoS: 000406294900161
Scopus: 2-s2.0-85020399789
URI
http://linkinghub.elsevier.com/retrieve/pii/S0048969717313815https://radar.ibiss.bg.ac.rs/handle/123456789/2786