000			03205cam a2200349 a 4500
003			EG-GiCUC
005			20250223032833.0
008			211023s2021 ua d f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aPh.D
099			_aCai01.12.14.Ph.D.2021.Ne.E
100	0		_aNermeen Raffat Mahmoud Hussein Amer
245	1	0	_aEffect of water pollution on development and anti-predatory behavior of Culex pipiens larvae (Diptera: Culicidae) / _cNermeen Raffat Mahmoud Hussein Amer ; Supervised Nawal Zohdy Mohammed Zohdy , Aly Ahmed Younes , Wael Mahmoud Elsayed
246	1	5	_aتأثير تلوث المياه على النمو والسلوك المضاد للإفتراس ليرقات كيولكس بيبينس (ثنائية الاجنحه: كيولسيدى
260			_aCairo : _bNermeen Raffat Mahmoud Hussein Amer , _c2021
300			_a95 , (11) P. : _bcharts ; _c25cm
502			_aThesis (Ph.D.) - Cairo University - Faculty of Science - Department of Entomology
520			_aWater pollution with heavy metals is one of the most important issues that impact the ecological balance of aquatic ecosystems. Copper is one of the essential metals that affects the development and physiology of aquatic organisms. In excess amount it could impair the nervous system and behavior. Copper can enter the aquatic habitats through various ways including agriculture applications where it is used infungicides and algaecides. This study is aiming to assess the lethal and sub-lethal effects of copper on the development, predation behavior and AChE activity on the immature stages, as well as accumulation of copper in larval and adults{u2019} tissues of the mosquito Culex pipiens as a model insect across two successive generations. Copper increased larval mortality in both generations with an average recorded LC50 of 476 {uF0B1} 30.60 æg/l (421.99 - 546.06 æg/l) and 348.67 {uF0B1} 23.20 æg/l(306.52 - 400.85 æg/l) in the first and second generations, respectively. As well, there was a significant increase in cumulative mortalities through adult emergence from 6% at controls to 54% at 500 æg/lin the first generation and from 4% at controls to 92.5% at 500 æg/l in the second generation. There was 100% mortality at the highest concentration (1000 æg/l)in the first generation. Moreover, copper delayed the development period of the immature stages byabout 4-5 days compared to controls of both generations. In this study, the chronic exposures to copper showed greater toxicity than reported for shorter exposures of Cx. pipiens, and confamilial taxa such as Cx. hortensis and Anopheles hispaniola. In addition, we tested the swimming behavior of Cx. pipiens larvae in response to copper and predation cues
530			_aIssued also as CD
653		4	_aAquatic insects
653		4	_aCopper sulphate
653		4	_aWater pollution
700	0		_aAly Ahmed Younes , _eSupervisor
700	0		_aNawal Zohdy Mohammed Zohdy , _eSupervisor
700	0		_aWael Mahmoud Elsayed , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aShimaa _eCataloger
942			_2ddc _cTH
999			_c82734 _d82734