埃及喀润湖大型底栖无脊椎动物的物化特征和WQI变化

IF 2.2 Q1 MARINE & FRESHWATER BIOLOGY
S.S. Abdel Gawad, M.H. Abdo, A.D.G. Al-Afify
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引用次数: 1

摘要

研究了埃及喀润湖大型底栖动物群落的理化特征与季节关系。喀润湖通过El-Batts和El-Wadi的排水沟从邻近的耕地接收大量的农业排水。总体而言,由于污染物持续排入湖水,El-Batts和El-Wadi排水口前站溶解氧、透明度降低,COD、NO3 -和NH3升高。水质指数显示,卡伦湖的水质对水生生物来说很差。大型底栖动物群落由3门16种组成,其中以青皮兽为优势的软体动物(7种)、以Limnodrillus为优势的环节动物(4种)和以Balanus pallidus为优势的节肢动物(5种)。大型底栖生物的结构和丰度受多种因素的影响,尤其是污水污染的排水污染,影响了湖泊的所有生物。卡伦湖WQI值为32.30 ~ 38.40,为差类,全区平均值为35.89±1.64,为水生生物利用差类。为了避免这种不良影响,流入太湖的污染物必须在排放前进行处理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Variations in the macrobenthic invertebrates in relation to physico-chemical characteristics and WQI in Lake Qarun, Egypt

The seasonal relationship between the physico-chemical characteristics and the macrobenthic fauna community was studied in Lake Qarun, Egypt. Lake Qarun receives a huge amount of agricultural drainage water from the neighboring cultivated land via El-Batts and El-Wadi drains. Generally, the obtained results have shown a decrease in dissolved oxygen, transparency and increase in COD, NO3 and NH3 at the stations in front of El-Batts and El-Wadi drains due to the continuous pollutants discharged into the Lake's water. The WQI revealed that the water quality of Lake Qarun is poor for aquatic life. The macrobenthic community consisted of sixteen species belonging to three phyla, Mollusca (7 species) that was dominated by Cerastoderma glaucum, Annelida (4 species) that was dominated by Limnodrillus spp. and Arthropoda (5 species) that was dominated by Balanus pallidus. The structure and abundance of macrobenthic species were affected by many factors especially pollution from the drainage water contaminated with sewages, which affected all living organisms in the Lake. The WQI values of Lake Qarun ranged from 32.30 to 38.40 (poor class) and the average value in the whole area was 35.89 ± 1.64 that is ranked as poor for the aquatic life utilization. To avoid this undesirable effect, the pollutants that flow into the Lake must be treated before being discharged.

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来源期刊
Egyptian Journal of Aquatic Research
Egyptian Journal of Aquatic Research MARINE & FRESHWATER BIOLOGY-
CiteScore
6.80
自引率
5.70%
发文量
63
审稿时长
39 days
期刊介绍: The Egyptian Journal of Aquatic Research is published by the National Institute of Oceanography & Fisheries. The Journal isdevoted to the publication of original papers and reviews in all branches of aquatic sciences (Oceanography, Limnology, Fisheries,Aquaculture and environmental sciences)
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