Protein synthesis during the first three cleavages in pond snail eggs (Lymnaea stagnalis).

Energy budgets in the simultaneously hermaphroditic pond snail, Lymnaea stagnalis : A trade-off between growth and reproduction during development

Maximum lifetime reproductive success is determined by the optimal partitioning of available resources between growth, maintenance and reproduction. The main question that is addressed here is how this resource allocation occurs in the simultaneously hermaphroditic pond snail, Lymnaea stagnalis. Snails were either reared in groups or in isolation and were fed a standard, restricted amount of le...

Short Communication Neuronal Feedback in Egg-laying Behaviour of the Pond Snail Lymnaea Stagnalis

Chemosensitivity of the osphradium of the pond snail Lymnaea stagnalis

The osphradium of the pond snail Lymnaea stagnalis was studied to determine the stimuli to which this organ responds. The following stimuli were tested: hypoxia, hypercapnia, a mixture of amino acids, a mixture of citralva and amyl acetate and a mixture of lyral, lilial and ethylvanillin. The mean nerve activity consistently increased with elevated PCO2, whereas hypoxia produced variable effect...

The Neural Control of Egg-laying Behaviour in the Pond Snail Lymnaea Stagnalis: Motor Control of Shell Turning

Behavioural and neurophysiological techniques were used to study the neuronal control of shell turning during egg-laying in the pond snail Lymnaea stagnalis. Egg-laying consists of three phases: resting, turning and oviposition, and is triggered by an electrical discharge in a group of neuroendocrine cells, the caudodorsal cells. During the discharge, several peptides encoded on two CDCH genes ...

An expressed sequence tag survey of gene expression in the pond snail Lymnaea stagnalis, an intermediate vector of Fasciola hepatica

The pond snail Lymnaea stagnalis is an intermediate vector for the liver fluke Fasciola hepatica, a common parasite of ruminants and humans. Yet, despite being a disease of medical and economic importance, as well as a potentially useful comparative tool, the genetics of the relationship between Lymnaea and Fasciola has barely been investigated. As a complement to forthcomingF. hepatica express...