Seasonal variation of heavy metals in water, sediment and roach tissues in a landfill draining system pond (Etueffont, France)

Shehata

Egypt. J. of Aquatic Biolo. and Fish.

2016

The present study aims to describe the effect of heavy metals: copper, manganese, iron and zinc on the water quality of El-Bagouria Canal at Kafr El-Zayat region, El-Gharbiah Governorate. Seasonal variations of physico-chemical parameters were studied during the period from summer, 2013 to spring, 2014. Also, to study their effects on the different organs of the commercial fish species; Nile tilapia, Oreochromis niloticus by studying some of biochemical parameters of this fish species (total protein, total lipids, total carbohydrates, ASAT and ALAT) during the study period.Results revealed that, heavy metals in the water showed seasonal variations. Also, data exhibited the highest values of heavy metals in the different organs of O. niloticus were recorded during winter in the liver and kidney and the lowest were observed in the muscles. Biochemical analysis indicated devastating effects, especially enzymes activities, in the metabolic organs. Statistical analysis using analysis of variance (ANOVA, at p<0.05) based on data represent the measured values of heavy metals in the different organs of O. niloticus during the different seasons. One way analysis proved that, there were highly significant differences between the metals and between the different seasons also between different organs. On the other hand, two ways of ANOVA provided highly significant differences between organs and metals at the same seasons. While, non-significant differences were detected at the interactions between seasons and organs at the same metals and between seasons and metals at the same organs. One way analysis for biochemical parameters in the different organs of O. niloticus during the different seasons proved that, there were highly significant differences between the parameters. Meanwhile, there were significant differences between the different seasons and between target organs. Moreover, two ways of ANOVA provided highly significant differences between organs and parameters at the same seasons. While, non-significant differences were found at the interactions between seasons and organs at the same parameters and between seasons and parameters at the same organs.

Section: Copper Concentrationsupporting

confidence: 36%

Influences of some pollutants on water quality of El-Bagouria Canal at Kafr El-Zayat Region, El-Gharbia Governorate, Egypt

Shehata

Egypt. J. of Aquatic Biolo. and Fish.

2016

“…in the muscles during the same season. These observations were agree with that obtained by Salem et al (2014) and differed with Demirak et al (2006) whom reported that, copper concentration was peaked in the muscles and declined in the gills. Accumulations of copper in the different organs of O. niloticus showed visible variations with the highest concentration in the liver.…”

Section: Heavy Metals In the Different Organs Of Fishessupporting

confidence: 93%

Seasonal Variations of Heavy Metal Accumulation in Water, Sediment and Target Organs of the Cichlid Fish, Oreochromis niloticus Inhabiting El-Bagouria Canal, El-Gharbia Governorate, Egypt

Zaahkouk

Egyptian Academic Journal of Biological Sciences. C, Physiology

et al. 2016

INTRODUCTION Damietta Nile Branch receives a large amount of untreated effluents from agricultural domestic and partially treated industrial wastewater. Contamination of water is a serious environmental problem as it adversely affects the human health and the biodiversity in the aquatic ecosystem (Sabae & Rabeh, 2007). El-Bagouria Canal (Fig. 1) is diverting from El-Monofy Rayah, It extends along the middle of Kafr El-Zayat Center (El-Gamal, 2009).

“…The estimation of biological status (biological monitoring), especially of the fish communities, is important for monitoring and the assessment of overall integrative ecological status of natural water bodies and specific aquatic environments (Bervoets and Blust, 2003;Ben salem et al, 2014). The high bioconcentration factors (BCFs) of heavy metals in the muscles of O. niloticus fish may reflect the large release of heavy metals to the environment due to domestic and industrial runoff.…”

Section: Discussionmentioning

confidence: 99%

Impact assessment of some heavy metals on tilapia fish, Oreochromis niloticus, in Burullus Lake, Egypt

El-Batrawy

El-Gammal

Mohamadein

et al. 2018

JoBAZ

Background: Burullus Lake has received a great attention because of its environmental and economic importance for being a significant source of fish production in Egypt. It is subjected to many of environmental changes due to the huge amount of discharges originated from different sources as well as many human activities. The Nile tilapia (Oreochromis niloticus) is an abundant sedentary fish present in the most Egyptian lakes, Nile River, and ponds. The study was designed to evaluate some metal pollution in Burullus Lake. Results: The values of heavy metals (Mn, Zn, Fe, Ni, Cu, and Pb) were measured in lake water and muscles of O. niloticus fish during winter and summer 2014. Water samples were collected from six sampling sites, while fish samples were collected from the three sectors (eastern, middle, and western) of the lake. The mean values of heavy metals (Mn, Zn, Fe, Ni, Cu, and Pb) in surface water of Burullus Lake during winter and summer for the year 2014 were 1.09, 10.50, 29.38, 6.87, 2.05, and 5.98 μg/L, respectively, whereas the annual means of heavy metals (Mn, Zn, Fe, Ni, Cu, and Pb) in the muscles of O. niloticus fish were 0.68, 4.70, 10.62, 0.52, 0.39, and 0.46 μg/g wet wt., respectively. Conclusions: In lake water, Mn was the lowest concentration of the six sampling sites, while Fe was the highest concentration, whereas in fish muscles, Cu recorded the lowest concentration of the three sectors, while Fe was the highest concentration. The southern part of Burullus Lake had the highest heavy metal values as it influenced by the discharge of massive amounts of domestic sewage as well as agricultural and industrial effluents. The accumulation of heavy metals in fish muscles of the three sectors showed different patterns. Generally, the values of metals in the fish muscles were accepted by the international legislation limits and are safe for human consumption.