The effects of endosulfan on the great ramshorn snail Planorbarius corneus (Gastropoda, Pulmonata): a histopathological study

Chemosphere
Birgül OtludilErhan Unlü

Abstract

In this study the great ramshorn snail (Planorbarius corneus), one of the most abundant gastropod of Turkish limnic systems, was investigated to determine the histopathological effects of endosulfan on the digestive gland, foot and mantle under laboratory conditions. Samples were collected from small artificial pools in Karaot at Gelendost-Isparta (southwest of Turkey), where agricultural activities are widespread. The snails were exposed to two sublethal concentrations of endosulfan (0.4 and 0.8 mg/l) for periods of 10, 20 and 30 days. Fifteen snails were kept in 2.5 l glass jars containing dechlorinated tap water and exposed under semi-static test (daily exchange of test water). All the testing was carried out on adult specimens, and snails were maintained on a photothermal period with 16 light hours at 22 +/- 2 degrees C. The histopathological examinations revealed the following changes: amoebocytes infiltration, dilatation in hemolymphatic spaces between the tubules, degeneration of cells, abnormal lumen, necrosis of cells and atrophy in the connective tissue of digestive gland; desquamation of the epithelium cells, changes in the number of mucocytes and protein gland cells, lipid vacuolus and atrophy of the columnar muscle...Continue Reading

Citations

Jan 14, 2009·Chemosphere·Eduardo Cyrino Oliveira-FilhoFrancisco Jose Roma Paumgartten
Apr 2, 2016·Archives of Environmental Contamination and Toxicology·Concillia MondePaul J Van den Brink
May 14, 2020·Scientific Reports·María Alonso-TrujilloJosé-Luis Martínez-Guitarte
Apr 22, 2020·Bulletin of Environmental Contamination and Toxicology·Birgül Otludil, Sabahat Ayaz

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