Laboratory Studies on Forest and Savannah Populations of Bulinus (Physopsis) Globosus in Ghana
Abstract
Studies on laboratory colonies of Bulinus globosus from forest,
savannah and transition zones have been carried out. The morphology,
growth and reproduction of such snails have been oompared. Crosses
between single snails from the three zones have been carried out and
the effect of overcrowding on growth and reproduction has been
investigated. Certain aspects of their behaviour such as mating, pattern
of oviposition, feeding and distribution in a culture dish have been
described. The effect of temperature on the snails' oviposition has
a1so been studied. Finally, the problem of desiccation has been looked
at end the esterase fractions of' the snails have been compared..
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Description
MSc.
Keywords
Bulinus (Physopsis), Globosus, Ghana