Histopathological Studies on Some Organs of Oreochromis Niloticus, Tilapia Zillii and Synodontis Schall From El-Salam Canal, Egypt

Zahran, Faten

doi:10.21608/ejabf.2003.1770

Cited by 33 publications

(38 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several histopathological changes have been reported in the liver of experimental fish in response to agricultural, sewage and industrial pollutants (Mohamed, 2003). The present study suggests a strong link between dietary DSS and histopathological lesions zin the liver.…”

Section: Histopathological Examinationsupporting

confidence: 66%

Influence of Feeding Fish the Dried-Treated Sewage on Physiological Responses and Histological Structure of the Liver

Abdelhamid¹,

Mehrim²,

Hamid³

et al. 2015

Asian J. of Animal and Veterinary Advances

View full text Add to dashboard Cite

Fish are one of the most extensively distributed organisms in the aquatic environment. A field study was conducted for 102 days at feeding period. A 100 fish/net-Hapa (Nile tilapia, silver carp, common carp and African catfish) were stocked at a rate of 1: 1: 1: 1 using a polyculture system. Two experimental net-Hapa/treatment were used, one treatment as a control fish fed a commercial diet and the second one fish were fed a Dried Sewage Sludge (DSS), product of treating sanitary and agricultural drainage of Al-Reiad city, Kafr El-Sheikh, Egypt). At the end of the experiment, blood samples were withdrawn for measuring the hematological and serum biochemical parameters, also liver samples were taken from each fish species for histopathological examinations. From the obtained results, it was clear that DSS feeding did not negatively affect the blood picture in general, although the significantly elevated values of transaminases activity and triglycerides concentration. The DSS feeding led to some drastic histological alterations in the liver structure. Conclusively, the presence of some pollutants from agricultural and urban drainages whether in the rearing water or in DSS that can negatively affect fish health, production and quality as well as could be inter the food chain and threat human health; so, it is recommended to give more concern on food and water quality (environmental friendly) used in aquaculture to offer more safe products for human consumption.

show abstract

Section: Histopathological Examinationsupporting

confidence: 66%

Influence of Feeding Fish the Dried-Treated Sewage on Physiological Responses and Histological Structure of the Liver

Abdelhamid¹,

Mehrim²,

Hamid³

et al. 2015

Asian J. of Animal and Veterinary Advances

View full text Add to dashboard Cite

show abstract

“…Since the gills are very sensitive to changes in the quality of the water (Amiri et al 2011), more prominent progressive changes on gills in autumn than in spring were probably found as a result of transient increase in exposure to pollutants, which then caused the activation of defence mechanisms. Seasonal variability in histopathological alterations on gills of several fish from El-Salam canal in Egypt was also attributed to seasonal differences in type and degree of water contamination (Mohamed 2003).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of histopathological alterations in the gills of Vardar chub ( Squalius vardarensis Karaman) as an indicator of river pollution

Barišić

Dragun

Ramani³

et al. 2015

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

Quantification of histopathological alterations in the gills of Vardar chub (Squalius vardarensisKaraman) was performed in 2012 in rivers of north-eastern Macedonia, with the aim to examine the effects of water quality in the rivers (Zletovska and Kriva River -impacted by active Pb/Zn mines; Bregalnica River -contaminated by agricultural waste). The biological alterations in chub were classified as: circulatory disturbances, regressive and progressive changes, but their severity differed.Altogether the mildest changes were observed in the gills of chub from the Bregalnica River, a less polluted river, whereas mining impacted rivers were characterized by more severe alterations. In the gills of chub from the Zletovska River, which is highly contaminated with numerous metals, sulphates and chlorides, the highest lesion indices were found for the regressive changes of both epithelium and supporting tissue, with typical lesions referring to atrophy, thinning and lifting of epithelial cells, necrosis of epithelium and chloride cells, as well as deformations of lamellar cartilaginous base. Gill damages of chub from the Kriva River were overall milder compared to the Zletovska River, in accordance with pollution status. In the gills of chub from that river, progressive changes were more pronounced, specifically severe hyperplasia of mucous cells and epithelium in the interlammellar space, leading to fusion of lamellae, as well as hypertrophy of chloride cells. The comparison between seasons indicated higher intensity of progressive changes in all three rivers in autumn, when water level was very low, and consequently, water contamination was more pronounced due to concentration effect. The pattern and severity of histopathological alterations in the chub gills reflected differences in contamination levels and type of contaminants in different rivers and sampling periods, and thus have been proven as a valuable indicator of water quality.

show abstract

“…Kock and Hofer [32] reported that even low concentration of heavy metals in the water may results in high concentration of them in fish flesh the point which is of great concern regarding to fish health directly and human health indirectly [33]. Prolonged exposure of fish to heavy metals causes several histopathological changes especially in the fish gills [34][35][36] and since gills are the respiratory and osmo-regulatory organ of fish, these histopathological changes might impair the gill respiratory function by reducing respiratory surface area resulted in hypoxia, respiratory failure problems [37][38][39] which may lead to fish death [40].…”

Section: Discussionmentioning

confidence: 99%

Investigations on Mass Mortalities among Oreochromis Niloticus at Mariotteya Stream, Egypt: Parasitic Infestation and Environmental Pollution Impacts

Mahmoud¹,

Fahmy²

2014

Fish Aquac J

View full text Add to dashboard Cite

The present study was carried out to determine the possible causes of an emergent event of respiratory distress with consequent mass mortalities among Nile fish, Oreochromis niloticus (O. niloticus) at Mariotteya stream, an intrastate tributary of River Nile, Egypt. The area of incident extended from Shabramant till Abouseer city (along 4 km distance) with the direction of water current. Field visits have recorded thousands of dead large sized fish on both sides of the stream while huge numbers of fish of different size accumulated on the water surface showing typical signs of asphyxia. It was also noted that Mariotteya water body is being subjected to multiple sources of pollution through the dumping of improperly treated organic and inorganic chemical wastes in addition to sewage materials. Results of field and laboratory investigations have revealed that, all the examined 60 fish samples were heavily infested with different types of parasites including zoonotic species: Cichlidogyrus arthracanthus (monogenea), Lamproglena monody and Ergasilus sarsi (Copepod), Myxobolus dermatobia, Chilodonella hexastica, Trichodina truttae, Trichodina fultoni, Cryptosporidium spp. and Balantidium spp. (Protozoa), Acanthosentis tilapae.(Acanthocephala), Clinostomum spp., Euclinostomum spp., Heterophid and Prohemistomatid metacercarae (larval of Trematodes). The physical and chemical examinations of water samples and the analysis of heavy metals concentration indicated marked abnormal water quality parameters and environmental pollution which might be incriminated as a primary stress factor that promoted the invasion of parasites as a secondary stress factor. The study concluded that both factors would have interacted to produce this catastrophic intense case of respiratory distress and mass mortalities. The impact of the recorded parasitic infestation and environmental pollution was briefly discussed.

show abstract

Histopathological Studies on Some Organs of Oreochromis Niloticus, Tilapia Zillii and Synodontis Schall From El-Salam Canal, Egypt

Cited by 33 publications

References 23 publications

Influence of Feeding Fish the Dried-Treated Sewage on Physiological Responses and Histological Structure of the Liver

Influence of Feeding Fish the Dried-Treated Sewage on Physiological Responses and Histological Structure of the Liver

Evaluation of histopathological alterations in the gills of Vardar chub ( Squalius vardarensis Karaman) as an indicator of river pollution

Investigations on Mass Mortalities among Oreochromis Niloticus at Mariotteya Stream, Egypt: Parasitic Infestation and Environmental Pollution Impacts

Contact Info

Product

Resources

About