Heavy metal accumulation in pond and farm cultured fish species of District Ludhiana
| dc.contributor.advisor | Hundal, S.S. | |
| dc.contributor.author | Harpinder Kaur | |
| dc.date.accessioned | 2018-05-09T06:35:13Z | |
| dc.date.available | 2018-05-09T06:35:13Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | In India, fresh water bodies in the form of naturally occurring ponds, form the lifeline in Indian villages. The present study was carried out to analyze the heavy metals in pond water and their impact on the water quality and fish species inhabiting these ponds. The water samples were collected for a period of one year (July’16- June’17) and the fish samples were collected seasonally (autumn, winter and summer) from three sites i.e. ponds of villages Kila Raipur and Lohatbaddi; and Fish Farm Complex in Guru Angad Dev Veterinary and Animal Sciences University (GADVASU) of district Ludhiana. Analysis of physicochemical parameters of water samples revealed decreased dissolved oxygen and increased BOD, free carbon dioxide and total alkalinity, indicating high pollution load in ponds of villages Lohatbaddi and Kila Raipur. Heavy metal accumulation in water samples varied seasonally where zinc was maximally accumulated, while cadmium was least. The heavy metals were greatly accumulated in village pond of Kila Raipur as compared to the other sites. Though the presence of heavy metals was detected in gills, liver and flesh from fish species collected from all sites, samples collected from pond of Lohatbaddi showed highest bioaccumulation of metals in fish with the liver recording greatest value for heavy metals. The haematological indices TEC and Hb were found to exhibit significant decline (P<0.05) whereas TLC depicted significant increase (P<0.05) in all fishes inhabiting the ponds of two villages. Histological examination of gills showed ruptured secondary lamellae and severe necrosis and vacuolization was observed in the liver of fish species collected from ponds of Lohatbaddi and Kila Raipur, flesh of fish species also showed significant histopathological alterations. The present study, therefore, indicated that environmental contaminants systematically disturb the aquatic ecosystem, leading to accumulation of toxicants like heavy metals, which induce severe physiological and histological changes in fish tissues, posing a significant potential health risk to humans from fish consumption. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810045108 | |
| dc.keywords | haematological indices, heavy metals, fish, physico-chemical parameters, ponds | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 113 | en_US |
| dc.publisher | Punjab Agricultural University, Ludhiana | en_US |
| dc.research.problem | Heavy metal accumulation in pond and farm cultured fish species of District Ludhiana | en_US |
| dc.sub | Zoology | en_US |
| dc.subject | null | en_US |
| dc.theme | Heavy metal accumulation in pond and farm cultured fish species of District Ludhiana | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Heavy metal accumulation in pond and farm cultured fish species of District Ludhiana | en_US |
| dc.type | Thesis | en_US |