Evaluation of the Acute Toxicity of an Ammonium Sulfate Fertilizer in Two Species of Anuran Tadpoles: Bufo mauritanicus (Schlegel 1841) and Rana ridibunda (Boulanger 1913)
| Autor: | Nadia Iounes, Souad El Amrani, Soukaina Namoussi, Ayoub Naamane, Sanaa Kamtass, A. Belhouari A. Belhouari |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:GE1-350
Ammonium sulfate ammonium sulphate Zoology engineering.material Biology ecotoxicological tests biology.organism_classification anuran tadpoles Acute toxicity lcsh:TD1-1066 chemistry.chemical_compound Rana ridibunda chemistry rana ridibunda engineering Fertilizer lcsh:Environmental technology. Sanitary engineering Bufo bufo mauritanicus Ecology Evolution Behavior and Systematics lcsh:Environmental sciences General Environmental Science |
| Zdroj: | Journal of Ecological Engineering, Vol 21, Iss 7, Pp 1-10 (2020) |
| ISSN: | 2299-8993 |
| Popis: | As part of ecotoxicological tests on anuran tadpoles, we propose to study the sensitivity of different stages towards a nitrogenous compound frequently used in Morocco (Ammonium sulphate). For this, acute toxicity tests on tadpoles of two species (Bufo mauritanicus and Rana ridibunda) belonging to different stages of development were carried out. The lethal effects after 96 hours caused by a pollutant used as a reference (potassium dichromate) as well as ammonium sulphate increase with concentration and vary according to the stage of development. Significant differences were observed in the sensitivity of tadpoles to pollutants according to the stage of development. Tadpoles belonging to the early stages of development (stage 24 according to Gosner, 1960) show greater acute effects on pollutants than tadpoles belonging to the advanced stages of development (Stage 36 according to Gosner, 1960). After 96 hours, the lowest effective concentration (LOEC) is observed in tadpoles belonging to the early stages of development (Stage 24 according to Gosner, 1960) in Rana ridibunda exposed just to the lowest concentration used (20 mg / l of ammonium sulphate). Therefore, ammonium sulphate may play a role in the local decline of amphibians. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|