Assessment of Microcystin Concentration in Carp and Catfish: A Case Study from Lakshmikund Pond, Varanasi, India

The present study was conducted to analyse microcystin concentrations in Lakshmikund pond, Varanasi, India, as well as in carp and catfish of the pond. The concentrations of microcystin were found well above the WHO guidelines (1 µg/L) both for the dissolved and particulate fractions of bloom sample...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2014-06, Vol.92 (6), p.687-692
Main Authors: Singh, Shweta, Asthana, Ravi Kumar
Format: Article
Language:English
Subjects:
Air. Soil. Water. Waste. Feeding
Algae
Animals
Aquatic Pollution
Bioaccumulation
Biological and medical sciences
Body weight
Carp
Carps - metabolism
case studies
Catfish
Catfishes - metabolism
correlation
Earth and Environmental Science
Ecotoxicology
Environment
Environment. Living conditions
Environmental Chemistry
Environmental Health
Environmental Monitoring
Fish and seafood industries
Food industries
Food toxicology
Fundamental and applied biological sciences. Psychology
guidelines
humans
India
Kidneys
Medical sciences
Microcystins
Microcystins - metabolism
Muscles
poisoning
Pollution
Ponds
Ponds - chemistry
Public health. Hygiene
Public health. Hygiene-occupational medicine
Soil Science & Conservation
Tissue Distribution
Toxicity
Waste Water Technology
Water Management
Water Pollutants, Chemical - metabolism
Water pollution
Water Pollution Control
World Health Organization
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Summary:The present study was conducted to analyse microcystin concentrations in Lakshmikund pond, Varanasi, India, as well as in carp and catfish of the pond. The concentrations of microcystin were found well above the WHO guidelines (1 µg/L) both for the dissolved and particulate fractions of bloom samples. The microcystin concentrations in different organs of carp and catfish were in the following sequence; liver > gut > kidney > gall bladder > gills > muscles and gut > liver > kidney > gall bladder > gills > muscles, respectively. The bioaccumulation of microcystin in carp and catfish was negatively correlated with body weight, and showed species specificity. The higher bioaccumulation of microcystin in muscles of catfish (>tenfold) over carp indicates a possible threat to human beings on consumption of catfish. Therefore, to avoid animal and human intoxication, routine analyses of microcystin in pond water as well as fishes are strongly recommended.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-014-1277-7