Showing papers on "Biomphalaria alexandrina published in 1986"
TL;DR: It is revealed that the habitat preference of the two snail species and the feeding preference of grass carp for plant species coincide to a certain extent and increased predation by omnivorous fish in biologically controlled canals may play an additional role.
12 citations
Journal Article•
2 citations
TL;DR: A study has been made of the effect of Alarisa cornuanetis on 4 populations of Biomphalaria alexandrina, exactly matching control populations in size, number and season of nurture.
Abstract: A study has been made of the effect of Alarisa cornuanetis on 4 populations of Biomphalaria alexandrina, exactly matching control populations in size, number and season of nurture. The observations were made in a series ofartijicial earth-lined ditches with continuously flowing Nile water. Q]ıantitative estimation of the densities of the experimental and control populations was made by standard twice a month samplings with a dip net.