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Cadmium toxicity in relation to APH enzymatic polymorphisms has been studied in Physa acuta (Gastropoda) from Lake Comabbio in Italy. No differences have been observed in allelic frequencies between dead and surviving individuals. To evaluate the natural variability of APH, a survey of natural populations has been carried out. Populations from 3 different habitats (Lake Comabbio, a ricefield near Reggio Emilia, Parma River) have shown no differences in APH frequencies. In 2 stations along the Parma River, differences in APH allelic frequencies have been observed, probably related to their high level of water pollution.

Additional information

Authors: ROSSI V, Istituto di Ecologia, Università di Parma, Parma (IT);LEONARDI S, Istituto di Ecologia, Università di Parma, Parma (IT);MENOZZI P, Istituto di Ecologia, Università di Parma, Parma (IT);GIANNONI L, JRC Ispra (IT);RAVERA O, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Terzo Congresso Nazionale della Società Italiana di Ecologia, Siena (IT), October 21-24, 1987
Availability: Available from (1) as Paper IT 33660 ORA
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