Effects of Physicochemical Variables of Superficial Waters on the Abundance of the North African Freshwater Crab Potamon algeriense (Bott, 1967)
The large number of pollutants discharged into the aquatic environment may influence the physicochemical and biological qualities of the aquatic ecosystem. This study discloses the global quality of the surface waters and the effect of physicochemical variables on the abundance of the African freshw...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Toxicology |
| Online Access: | http://dx.doi.org/10.1155/2021/6669919 |
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| author | Soufiane Fadlaoui Ouahid El Asri Mustapha Bouterfas Mohammed Melhaoui |
| author_facet | Soufiane Fadlaoui Ouahid El Asri Mustapha Bouterfas Mohammed Melhaoui |
| author_sort | Soufiane Fadlaoui |
| collection | DOAJ |
| description | The large number of pollutants discharged into the aquatic environment may influence the physicochemical and biological qualities of the aquatic ecosystem. This study discloses the global quality of the surface waters and the effect of physicochemical variables on the abundance of the African freshwater crab Potamon algeriense inhabiting Zegzel watercourse, a mountain stream in the northeast of Morocco. Physicochemical variables including streamflow, water temperature, pH, dissolved oxygen, suspended matter, chloride, calcium, magnesium, ammonia, nitrite, nitrate, orthophosphate, and organic matter were evaluated monthly for one year (October 2017–September 2018). The evaluation of the physicochemical quality showed that the waters of all the stations studied are between the excellent and good quality classes concerning all the physicochemical variables and highlights also two variations with a tendency towards degradation, one spatial from upstream to downstream and the other seasonal from the wet to the dry period. The abundance of crabs was recorded to exhibit a positive correlation with dissolved oxygen, calcium (N = 44) (p < 0.01), and magnesium. However, a negative correlation has been noticed for streamflow (N = 1) (p < 0.01), water temperature, pH, suspended matter, chloride, ammonia, nitrite, nitrate, orthophosphate, and organic matter. The results obtained reveal that besides the biotic variables, the distribution of P. algeriense also depends on these specific environmental variables. |
| format | Article |
| id | doaj-art-9c9f9831cd5b49849b57cd73c0aac6ee |
| institution | Kabale University |
| issn | 1687-8191 1687-8205 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Toxicology |
| spelling | doaj-art-9c9f9831cd5b49849b57cd73c0aac6ee2025-02-03T06:43:49ZengWileyJournal of Toxicology1687-81911687-82052021-01-01202110.1155/2021/66699196669919Effects of Physicochemical Variables of Superficial Waters on the Abundance of the North African Freshwater Crab Potamon algeriense (Bott, 1967)Soufiane Fadlaoui0Ouahid El Asri1Mustapha Bouterfas2Mohammed Melhaoui3Mohamed First University, Faculty of Sciences, Department of Biology, Laboratory of Water, Environment, and Sustainable Development, Oujda, MoroccoMicrobiology and Biotechnology Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, MoroccoMohamed First University, Faculty of Sciences, Department of Biology, Laboratory of Water, Environment, and Sustainable Development, Oujda, MoroccoMohamed First University, Faculty of Sciences, Department of Biology, Laboratory of Water, Environment, and Sustainable Development, Oujda, MoroccoThe large number of pollutants discharged into the aquatic environment may influence the physicochemical and biological qualities of the aquatic ecosystem. This study discloses the global quality of the surface waters and the effect of physicochemical variables on the abundance of the African freshwater crab Potamon algeriense inhabiting Zegzel watercourse, a mountain stream in the northeast of Morocco. Physicochemical variables including streamflow, water temperature, pH, dissolved oxygen, suspended matter, chloride, calcium, magnesium, ammonia, nitrite, nitrate, orthophosphate, and organic matter were evaluated monthly for one year (October 2017–September 2018). The evaluation of the physicochemical quality showed that the waters of all the stations studied are between the excellent and good quality classes concerning all the physicochemical variables and highlights also two variations with a tendency towards degradation, one spatial from upstream to downstream and the other seasonal from the wet to the dry period. The abundance of crabs was recorded to exhibit a positive correlation with dissolved oxygen, calcium (N = 44) (p < 0.01), and magnesium. However, a negative correlation has been noticed for streamflow (N = 1) (p < 0.01), water temperature, pH, suspended matter, chloride, ammonia, nitrite, nitrate, orthophosphate, and organic matter. The results obtained reveal that besides the biotic variables, the distribution of P. algeriense also depends on these specific environmental variables.http://dx.doi.org/10.1155/2021/6669919 |
| spellingShingle | Soufiane Fadlaoui Ouahid El Asri Mustapha Bouterfas Mohammed Melhaoui Effects of Physicochemical Variables of Superficial Waters on the Abundance of the North African Freshwater Crab Potamon algeriense (Bott, 1967) Journal of Toxicology |
| title | Effects of Physicochemical Variables of Superficial Waters on the Abundance of the North African Freshwater Crab Potamon algeriense (Bott, 1967) |
| title_full | Effects of Physicochemical Variables of Superficial Waters on the Abundance of the North African Freshwater Crab Potamon algeriense (Bott, 1967) |
| title_fullStr | Effects of Physicochemical Variables of Superficial Waters on the Abundance of the North African Freshwater Crab Potamon algeriense (Bott, 1967) |
| title_full_unstemmed | Effects of Physicochemical Variables of Superficial Waters on the Abundance of the North African Freshwater Crab Potamon algeriense (Bott, 1967) |
| title_short | Effects of Physicochemical Variables of Superficial Waters on the Abundance of the North African Freshwater Crab Potamon algeriense (Bott, 1967) |
| title_sort | effects of physicochemical variables of superficial waters on the abundance of the north african freshwater crab potamon algeriense bott 1967 |
| url | http://dx.doi.org/10.1155/2021/6669919 |
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