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[On temporal dynamics of morphological variations in the Black sea mussel Mytilus galloprovincialis lam]
E A Zhukovskaia1, O P Kodolova, M V Pereladov
1Biological Faculty, Moscow State University, Vorob'evy gory, Moscow, 119899 Russia.
Abstract:
Temporal variations in morphological characters of the shells were studied in 12 samples of mussels M. galloprovincialis Lam. from the Black Sea commercial collectors that belong to different generations. The samples were shown to be diverse in every studied character and the degree of characters' variability in the samples was different. The morphological diversity of samples diminished with age. Different generations from the same habitat had specific features of age-related variability expressed as different rates of age-related changes and direction and degree of variability. This effect is considered as an index of the influence of ecological conditions on the shell growth and formation.
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