1/1989 vol. 3
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RESEARCH PAPER
Shell biometrical variability of Planorbis planorbis (Linnaeus, 1758) (Gastropoda: Pulmonata) in man-made water bodies of the Upper Silesian Industrial Region
Małgorzata Strzelec 1
 
 
 
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Faculty of Biology, Silesian University, Katowice, Poland
 
 
Publication date: 2020-07-09
 
 
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Małgorzata Strzelec
Faculty of Biology, Silesian University, Bankowa 9, 40-007 Katowice, Poland
 
 
Folia Malacol. 1989;3(1):159-173
DOI: https://doi.org/10.12657/folmal.003.013
 
 
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KEYWORDS
Planorbidae
shell variability
environmental factor
water pollution
 
ABSTRACT
The author has studied the effect of some environmental factors on the biometrical variability of the shell of the freshwater pulmonate snail Planorbis planorbis from several man-made water bodies of three types in the Upper Silesian Industrial Region. Out of the studied factors the calcium content in water did not seem to have a strong effect on the shell of the mollusc. On the contrary, a high content of magnesium ions in water seemed to inhibit the growth of the shell.
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ISSN:1506-7629
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