Assessment of selected indicators of physicochemical conditions in the Rega River from 2018 to 2022 in accordance with EU regulations
The aim of this study, conducted in accordance with both European Union and national legislation, was to evaluate the physicochemical conditions of the Rega River in northern Poland, where efforts are underway to restore its watershed for migratory fish. From 2018 to 2022, water temperature, dissolv...
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| Format: | Article |
| Language: | English |
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Sciendo
2024-09-01
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| Series: | Fisheries & Aquatic Life |
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| Online Access: | https://doi.org/10.2478/aopf-2024-0016 |
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| author | Bonisławska Małgorzata Nędzarek Arkadiusz Tański Adam Tórz Agnieszka Formicki Krzysztof Krzystolik Jan |
| author_facet | Bonisławska Małgorzata Nędzarek Arkadiusz Tański Adam Tórz Agnieszka Formicki Krzysztof Krzystolik Jan |
| author_sort | Bonisławska Małgorzata |
| collection | DOAJ |
| description | The aim of this study, conducted in accordance with both European Union and national legislation, was to evaluate the physicochemical conditions of the Rega River in northern Poland, where efforts are underway to restore its watershed for migratory fish. From 2018 to 2022, water temperature, dissolved oxygen (DO), pH, total suspended solids (TSS), conductivity, alkalinity, total hardness (TH), biochemical oxygen demand (BOD5), chemical oxygen demand (CODCr), nitrite nitrogen (NO2-N), ammonium nitrogen (NH4-N), and total phosphorus (TP) were measured at nine monitoring sites. The results showed that TSS and nitrite nitrogen (NO2-N) were the main factors threatening the suitability of the Rega River as a habitat for salmonid fishes. Additionally, maximum water temperatures occasionally exceeded the tolerance limits for these fishes. Seasonal variations in nitrogen and phosphorus forms, and the dependency of nitrogen forms on DO, indicated disruptions in natural biochemical processes due to surface runoff pollutants from the watershed. This includes fertilizer runoff from agricultural fields and municipal pollution from the towns through which the river flows. The findings underscore the need for continuous monitoring of Rega River waters to safeguard the habitat conditions required by environmentally sensitive fish species. |
| format | Article |
| id | doaj-art-8746ceda1cca4b81a8a2e0df4be68d18 |
| institution | Kabale University |
| issn | 2545-059X |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Fisheries & Aquatic Life |
| spelling | doaj-art-8746ceda1cca4b81a8a2e0df4be68d182025-02-10T13:25:25ZengSciendoFisheries & Aquatic Life2545-059X2024-09-0132317519010.2478/aopf-2024-0016Assessment of selected indicators of physicochemical conditions in the Rega River from 2018 to 2022 in accordance with EU regulationsBonisławska Małgorzata0Nędzarek Arkadiusz1Tański Adam2Tórz Agnieszka3Formicki Krzysztof4Krzystolik Jan51Department of Aquatic Bioengineering and Aquaculture, West Pomeranian University of Technology in Szczecin, Kazimierza Królewicza Street 4B, 71-550Szczecin, Poland1Department of Aquatic Bioengineering and Aquaculture, West Pomeranian University of Technology in Szczecin, Kazimierza Królewicza Street 4B, 71-550Szczecin, Poland2Department of Hydrobiology, Ichthyology and Biotechnology of Breeding, West Pomeranian University of Technology in Szczecin, Kazimierza Królewicza Street 4, 71-550Szczecin, Poland1Department of Aquatic Bioengineering and Aquaculture, West Pomeranian University of Technology in Szczecin, Kazimierza Królewicza Street 4B, 71-550Szczecin, Poland2Department of Hydrobiology, Ichthyology and Biotechnology of Breeding, West Pomeranian University of Technology in Szczecin, Kazimierza Królewicza Street 4, 71-550Szczecin, Poland2Department of Hydrobiology, Ichthyology and Biotechnology of Breeding, West Pomeranian University of Technology in Szczecin, Kazimierza Królewicza Street 4, 71-550Szczecin, PolandThe aim of this study, conducted in accordance with both European Union and national legislation, was to evaluate the physicochemical conditions of the Rega River in northern Poland, where efforts are underway to restore its watershed for migratory fish. From 2018 to 2022, water temperature, dissolved oxygen (DO), pH, total suspended solids (TSS), conductivity, alkalinity, total hardness (TH), biochemical oxygen demand (BOD5), chemical oxygen demand (CODCr), nitrite nitrogen (NO2-N), ammonium nitrogen (NH4-N), and total phosphorus (TP) were measured at nine monitoring sites. The results showed that TSS and nitrite nitrogen (NO2-N) were the main factors threatening the suitability of the Rega River as a habitat for salmonid fishes. Additionally, maximum water temperatures occasionally exceeded the tolerance limits for these fishes. Seasonal variations in nitrogen and phosphorus forms, and the dependency of nitrogen forms on DO, indicated disruptions in natural biochemical processes due to surface runoff pollutants from the watershed. This includes fertilizer runoff from agricultural fields and municipal pollution from the towns through which the river flows. The findings underscore the need for continuous monitoring of Rega River waters to safeguard the habitat conditions required by environmentally sensitive fish species.https://doi.org/10.2478/aopf-2024-0016riversewage treatment plantwater pollutionwater quality monitoring |
| spellingShingle | Bonisławska Małgorzata Nędzarek Arkadiusz Tański Adam Tórz Agnieszka Formicki Krzysztof Krzystolik Jan Assessment of selected indicators of physicochemical conditions in the Rega River from 2018 to 2022 in accordance with EU regulations Fisheries & Aquatic Life river sewage treatment plant water pollution water quality monitoring |
| title | Assessment of selected indicators of physicochemical conditions in the Rega River from 2018 to 2022 in accordance with EU regulations |
| title_full | Assessment of selected indicators of physicochemical conditions in the Rega River from 2018 to 2022 in accordance with EU regulations |
| title_fullStr | Assessment of selected indicators of physicochemical conditions in the Rega River from 2018 to 2022 in accordance with EU regulations |
| title_full_unstemmed | Assessment of selected indicators of physicochemical conditions in the Rega River from 2018 to 2022 in accordance with EU regulations |
| title_short | Assessment of selected indicators of physicochemical conditions in the Rega River from 2018 to 2022 in accordance with EU regulations |
| title_sort | assessment of selected indicators of physicochemical conditions in the rega river from 2018 to 2022 in accordance with eu regulations |
| topic | river sewage treatment plant water pollution water quality monitoring |
| url | https://doi.org/10.2478/aopf-2024-0016 |
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