Bioassessment and Biomonitoring of the Protectorate Wadi El-Rayan Lakes (Egypt) Using the Recommended Water Framework Directive (WFD) Indices Based on the Macrobenthic Invertebrates | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 69, Volume 27, Issue 6, November and December 2023, Page 1199-1217 PDF (620.92 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.2023.344038 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Marian G. Nassif; Amany S. Amer | ||||
| Abstract | ||||
| The present study was carried out with the purpose of monitoring the recent benthic macroinvertebrate assemblage and evaluating the ecological state of Wadi El-Rayan Lakes, which are solely dependent on waste and agricultural discharging water through the El-Wadi drain. The study commenced in November 2018 and ended in July 2019, during which water samples were collected to measure environmental parameters. The Shanon-Wiener diversity index (H`) and Bray-Curtiz similarity index were applied. The biological monitoring working party (BMWP) and average score per taxon (ASPT) were also applied to the upper and lower Wadi El-Rayan Lakes for the first time. A total of ten macro-invertebrate taxa were identified in the upper lake, whereas thirteen were identified in the lower lake. The benthic communities of the upper lake consisted of Mollusca, Annelida, and Arthropoda, while those of the lower lake comprised Arthropoda, Mollusca, Annelida, and Coelentrata. Although the upper lake displayed a poor to medium ecological status, the lower lake exhibited diverse populations, indicating a better ecological condition. The BMWP score of the upper lake was 41, suggesting a moderate status, while the lower lake's score was 59, indicating a moderate ecological status as well. The ASPT values indicate a moderate ecosystem status for both the upper and lower lakes. This study established a baseline reference for future monitoring, and calls for stakeholders to take special care of this crucial protectorate to mitigate uncontrolled activities. TRANSLATE with x English Arabic Hebrew Polish Bulgarian Hindi Portuguese Catalan Hmong Daw Romanian Chinese Simplified Hungarian Russian Chinese Traditional Indonesian Slovak Czech Italian Slovenian Danish Japanese Spanish Dutch Klingon Swedish English Korean Thai Estonian Latvian Turkish Finnish Lithuanian Ukrainian French Malay Urdu German Maltese Vietnamese Greek Norwegian Welsh Haitian Creole Persian // TRANSLATE with EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster Portal Back // | ||||
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| Keywords | ||||
| Macrobenthos; Wadi El-Rayan Lakes; Biomonitoring; BMWP; ASPT; Biodiversity | ||||
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