Journal
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume 101, Issue 1, Pages 26-32Publisher
SPRINGER
DOI: 10.1007/s00128-018-2375-8
Keywords
Bioaccumulation; Heavy metals; Fish; Jinsha River; Tuo River
Categories
Funding
- Natural Science Foundation of Chongqing [cstc2013jjB80008]
- Fundamental Research Funds for the Central Universities [XDJK2016C156]
- Qinzhou University [2017KYQD107]
- Research Funds Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation [2018ZB03]
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The concentrations of lead, chromium, cadmium, arsenic, and mercury were analyzed in the muscle and liver (hepatopancreas) of three fish species (Silurus asotus, Cyprinus carpio, and Carassius auratus auratus) from the Jinsha and Tuo Rivers. The above mentioned metal concentrations in the muscles of the three fish species were below the permissible limits, indicating that these fishes are safe for human consumption. The concentration of mercury in the carnivorous fishes was higher than that in the omnivorous fishes. There was no significant difference in growth rate and the concentration of lead, chromium, cadmium, arsenic, and mercury among the fishes from Panzhihua and Fushun. In the two age groups, the concentration of mercury did not vary significantly with growth rate of fish. The relationship between heavy metal concentration and growth rate of fish varied with metal species, fish species, and fish tissue.
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