Bioaccumulation Kinetics and Bioconcentration Factor of Chlorinated Pesticides in Tissues ofPuntius ticto(Ham.)

Abstract

Bioaccumulation kinetics and bioconcentration factor (BCF) of chlorinated pesticides like Aldrin, Dieldrin, Benzene hexachloride (BHC), and Dichlorodiphenyl-dichloro-ethane (DDT) in fish tissues of Puntius ticto was studied in detail in a continuous fed system. The bioconcentration process is summarized by using a first order uptake model and the steady-state BCF is calculated based on the 30 days exposure. Rate of bioaccumulation of DDT was maximum of 4.6432 microg g(-1) wet weight per day in liver tissue whereas it was minimum of 0.0002 microg g(-1) wet weight per day in case of Dieldrin in the muscle tissue among the pesticides. It was observed that DDT showed maximum BCF of 89.010 in case of liver tissue of the fish exposed to 30 days. The regression coefficient (r2) between pesticide concentration and exposure time varied between 0.6212 and 0.9817 indicating high correlation. Based on actual calculated BCF values, the octanol water partition coefficient (Kow) values were predicted. In order to prove the hydrophobic property of chlorinated compounds and its affinity towards lipid, the Kow is predicted. Results showed that pesticide burden differ from tissue to tissue and can be correlated to the lipid content, size, exposure time, and species.

Effects of dietary garlic (Allium sativum) oil on growth performance, haemato‐biochemical and histopathology of cypermethrin‐intoxicated Nile tilapia (Oreochromis niloticus)

“…It is assumed to result from the protective effect of garlic. Barathinivas et al (2022) Similar results have been reported for Cyprinus carpio and Puntius ticto (Satyanarayan et al, 2004), Cyprinus carpio (Saravanan et al, 2017), Oreochromis mossambicus (Ghayyur et al, 2019) and Oreochromis niloticus (Dawood et al, 2020).…”

Histopathological changes due to some chlorinated hydrocarbon pesticides in the tissues to cyprinus carpio

“…The study on naphthalene showed formation of lesions and hyperplasty occlusions in gills of Trachinotus carolinus [21] . Also, epithelial lifting, hyperplasia and hypertrophy of respiratory epithelium, lamellar fusion and aneurysms in the gills have been reported in Neotropical fish [22] .…”

Determination of lipid content in fish samples from bioaccumulation studies: contributions to the revision of guideline OECD 305

“…Other papers report on bioconcentration tests according to OECD TG 305 [1] or U.S. EPA OPPTS 850.1730 [10] without lipid determination being carried out (e.g., [29][30][31][32]). The outcome of the literature review with respect to guideline studies and lipid determination methods was thus not satisfactory due to a shortage of data.…”

“…Variability in muscle concentrations between fish species decreased when concentrations were normalized to lipid content. Several studies describe the residue distribution over different organs (e.g., [31,45,[47][48][49][50][51][52][53]). However, bioconcentration studies according to OECD 305 [1] are performed to obtain BCF values which -per definitionem -refer to the whole fish, and differences in residue distribution over different organs are thus not essential.…”