期刊
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
卷 97, 期 1, 页码 105-111出版社
SPRINGER
DOI: 10.1007/s00128-016-1828-1
关键词
OCPs; Bentivorous; Fish; Water bodies; Bioaccumulation; Campeche
资金
- CONACyT
- FOMIX-Campeche as part of the project Calidad de agua y presencia de contaminantes organicos persistentes en fauna terrestre y acuatica en dos sistemas lenticos del estado de Campeche: evaluacion y determinacion de posibles grupos indicadores [FOMIX-2008-C01-96368]
In this study we quantified and compared bioaccumulated OCPs in target fish species Cichlasoma urophthalmus (Mayan cichlid) and Oreochromis niloticus (Nile tilapia) and sediment in two lentic systems neighboring areas with different land use (Xnoha = agricultural/Mocu = nature reserve). Fish at both sites showed the same number of pesticide compounds (17) while in sediment were 17 and 20, respectively. achlordane concentrations were significantly higher in Xnoha in both fish and sediment (1.0 and 0.17 A mu g/g, respectively). Here higher concentrations of o,p'DDT were found in fish than in sediments, this was similarly demonstrated in Mocu but to a lesser extent. The proportion of endosulfan sulfate was lower in Xnoha (< 20 %) than in Mocu (< 50 %) compared to the original product. Detected concentrations of aDDT and chlordane exceed international permissible limits. Results indicate that OCPs were present in both aquatic systems regardless of the differences in land use.
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