Persistence of pesticides in water, sediment and fish from fish farms in Kolleru Lake, India

Amaraneni, Sreenivasa Rao

doi:10.1002/jsfa.1134

Cited by 18 publications

(6 citation statements)

References 8 publications

(9 reference statements)

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“…The mean and range of ethion and chlorpyrifos in fish samples were 0.0004 µg/g and BDL-0.0011 µg/g, 0.00020 µg/g and BDL-0.0008µg/g, respectively. Chlorpyrifos levels in present study were lower than the levels reported by Amaraneni (2002) i.e. 12.6µg/g in fish of Andhra Pradesh.…”

Section: Resultscontrasting

confidence: 87%

Studies on Levels of Pesticides Residues in Market Fish of Punjab (India)

Zargar¹,

Gill²

2018

Int.J.Curr.Microbiol.App.Sci

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In this study, the pesticide residues of organochlorine, organophosphate, and synthetic pyrethroid were monitored in market fish samples of different regions of Punjab. The pesticide residues were estimated by multiple residue analytical technique using gas chromatography equipped with GC-ECD and GC-FTD. The confirmation of residues was done on gas chromatography mass spectrometry. The results showed the presence of hexachlorocyclohexane (HCH) as predominant contaminant in market fish samples. Residues of HCH were detected in 33 % samples, whereas endosulfan sulphate, DDT, chlorpyrifos, aldrin, cyhalothrin and ethion residues comprised 31, 21, 5, 4, 3, and 3 per cent, respectively. In market fish in different districts of Punjab, the highest levels of HCH were found in Ludhiana district. The highest levels of endosulfan were found in Patiala district. The highest levels of DDT were found in Bhatinda district. The highest levels of cyhalothrin, aldrin and chlorpyrifos were found in Ferozepur/Moga district. The highest levels of endosulfan sulphate and ethion were found in Bhatinda district. Mean levels of residues in market fish were HCH, endosulfan sulphate, DDT, chlorpyrifos, aldrin, cyhalothrin, endosulfan and ethion: 0

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Section: Resultscontrasting

confidence: 87%

Studies on Levels of Pesticides Residues in Market Fish of Punjab (India)

Zargar¹,

Gill²

2018

Int.J.Curr.Microbiol.App.Sci

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“…Several studies showed that the development of large-scale aquaculture has a detrimental effect on the Kolleru Lake ecosystem [35,[48][49][50][51]. There is also growing evidence that, beyond nutrient and sediment input, the waters and lake sediments of Kolleru Lake are increasingly polluted by heavy metals [52][53][54], pesticides [55], and PAHs [56]. These pollutants have entered the aquatic food web, sometimes leading to critical levels of bioaccumulation in fish reared in the aquafarms [43,53,56,57].…”

Section: Study Areamentioning

confidence: 99%

Mapping of Major Land-Use Changes in the Kolleru Lake Freshwater Ecosystem by Using Landsat Satellite Images in Google Earth Engine

Kolli

Opp

Karthe

et al. 2020

Water

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India’s largest freshwater ecosystem of the Kolleru Lake has experienced severe threats by land-use changes, including the construction of illegal fishponds around the lake area over the past five decades. Despite efforts to protect and restore the lake and its riparian zones, environmental pressures have increased over time. The present study provides a synthesis of human activities through major land-use changes around Kolleru Lake both before and after restoration measures. For this purpose, archives of all Landsat imageries from the last three decades were used to detect land cover changes. Using the Google Earth Engine cloud platform, three different land-use scenarios were classified for the year before restoration (1999), for 2008 immediately after the restoration, and for 2018, i.e., the current situation of the lake one decade afterward. Additionally, the NDVI (Normalized Difference Vegetation Index) and NDWI (Normalized Difference Water Index) indices were used to identify land cover dynamics. The results show that the restoration was successful; consequently, after a decade, the lake was transformed into the previous state of restoration (i.e., 1999 situation). In 1999, 29.7% of the Kolleru Lake ecosystem was occupied by fishponds, and, after a decade of sustainable restoration, 27.7% of the area was fishponds, almost reaching the extent of the 1999 situation. On the one hand, aquaculture is one of the most promising sources of income, but there is also limited awareness of its negative environmental impacts among local residents. On the other hand, political commitment to protect the lake is weak, and integrated approaches considering all stakeholders are lacking. Nevertheless, alterations of land and water use, increasing nutrient concentrations, and sediment inputs from the lake basin have reached a level at which they threaten the biodiversity and functionality of India’s largest wetland ecosystem to the degree that immediate action is necessary to prevent irreversible degradation.

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“…58 Unfortunately, the only effective treatment against Lernaea spp is the application of 59 organophosphate and organochlorine pesticides. Their chemical stability, lipophilic nature 60 and toxicity, has led researchers to be concerned with their presence in the environment 61 (Amaraneni, 2002). The persistence of therapeutic agents in the aquatic environment causes 62 adverse effects on the ecosystem (Anon 1988, Choo 1994.…”

Section: Introductionmentioning

confidence: 99%