Anodontites trapesialis: A biological monitor of organochlorine pesticides

Abstract

The mussel Anodontites trapesialis (Lam, 1819) was used as an indicator of organochlorine pollutants in the Pardo River, located in the municipality of Ribeirão Preto (21 degrees 07'S and 47 degrees 45'W), State of São Paulo, Brazil. Biological monitoring was performed for one year at the site of a sugar cane grove on the left bank of the river. Forty-three animals were placed in two aluminum enclosures on the river bottom at this site and 4 animals of each enclosure were sacrificed for pesticide analysis at 3-month intervals, each collection corresponding to one season of the year. The animals were found to have been exposed to DDT, lindane, heptachlor, aldrin and dieldrin. Endrin was not detected in any of the analyses.

Biomonitoring of Pb and Cd in two impacted watersheds in Southeast Brazil, using the freshwater mussel Anodontites trapesialis (Lamarck, 1819) (Bivalvia : Mycetopodidae) as a biological monitor

“…Consequently, such organisms have been largely used in programmes of biological monitoring in either salt water (Farrington, 1983;De Gregori et al, 1994;McConnell and Harrel, 1995;Avelar et al, 2000) or in freshwater (Manly and George, 1977;Foster and Bates, 1978;Millington and Walker, 1983; ) Abaychi and Mustafa, 1988;Hameed and Raj, 1990;Kraak et al, 1991;Camusso et al, 1994;Valdovinos et al, 1998;Villar et al, 1999;Rutzke et al, 2000). The species adopted as a biological monitor in this study (A. trapesialis) has been successfully used by different investigators (Avelar et al, 1991;Roma and Longo, 1991;Lopes et al, 1992) in monitoring programmes on some rivers in São Paulo State. Mean values followed by the same letter on the vertical did not differ significantly in relation to the other sampling sites in the same basin.…”

Determination of ametryn in river water, river sediment and bivalve mussels by liquid chromatography-tandem mass spectrometry

“…10 Freshwater bivalve mussels have been used by our group as biomonitor for the presence of organochlorine pesticides [11][12][13] and atrazine 14 in São Paulo state Brazil. In order to evaluate the real contamination by pesticides in the freshwater ecosystem, it is important the development of methods that could be used for the determination of pesticides not only in water, but also in sediment samples and in aquatic organisms, such as bivalve mussel species.…”

Reviews of Environmental Contamination and Toxicology

“…In this context, when considering all data available for bivalves, the PCB measurable concentration averages 20 ng/g in almost all the gathered data, reaching values above 200 ng/g only in the work of Farrington and Tripp (1995). This is an interesting result, and according to Lopes et al (1992), these high values may reflect a seasonal variation in POP content in bivalves. Fresh weight concentrations in these bivalves are 1 order of magnitude lower than the guideline for PCBs (0.15-0.2 compared to 20 ng/g), and concentration patterns tend to follow both the industrial development and population growth observed in the Pacific and Atlantic coastal areas.…”