Results 141 to 147 of about 202 (147)

THE EFFECT OF SODIUM CHLORIDE CONCENTRATION ON GROWTH AND EGG LAYING OF HELISOMA DURYI, BIOMPHALARIA ALEXANDRINA AND BULINUS TRUNCATUS (GASTROPODA: PLANORBIDAE)

Journal of Molluscan Studies, 1990
Henry Madsen
exaly  

The effect of temperature, darkness, starvation and various food types on growth, survival and reproduction of Helisoma duryi, Biomphalaria alexandrina and Bulinus truncatus (Gastropoda: Planorbidae)

Hydrobiologia, 1982
exaly  

A preliminary study on biological control of the snail intermediate hosts of schistosomiasis in U.A.R. by Helisoma duryi snails

Hydrobiologia, 1970
exaly  

Fine structure of normal and regenerated shell of Helisoma duryi duryi

Canadian Journal of Zoology, 1972
exaly  

[Comparative breeding of Helisoma duryi and Biomphalaria glabrata in laboratory (Mollusca, Planorbidae)].

Revista brasileira de malariologia e doencas tropicais. Publicacoes avulsas, 1981
openaire   +1 more source

Enzyme analyses on seven laboratory stocks and two natural populations of Helisoma duryi. Electrophoretic patterns of eight enzymes with genetic information on four polymorphic enzymes

Hereditas, 1982
exaly  

Further contribution to the effect of population density on the reproductive capacity and population dynamics of Helisoma duryi.

Journal of the Egyptian Society of Parasitology, 1982
openaire   +1 more source