Access the full text.
Sign up today, get DeepDyve free for 14 days.
References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.
THE INFLUENCE OF ENVIRONMENTAL FACTORS ON THE OVIPOSITION OF LYMNAEA STAGNALIS (L.) UNDER LABORATORY CONDITIONS by W.J.VAN DER STEEN (Zoological Department, Free University, Amsterdam, The Netherlands) 404 I. INTRODUCTION The freshwater basommatophoran pulmonates generally show a high fecundity. In the field large numbers of egg capsules are laid during the reproductive season. When kept in the laboratory, several species can reproduce throughout the year. Under suitable laboratory condi- tions, Lymnaea stagnalis (Linnaeus, 1758) can produce up to I egg capsule every two days on the average, each capsule containing up to 250 eggs. During the last decades the interest in this group has increased con- siderably, not in the least due to the fact that many of them are inter- mediate hosts ofimportant trematod parasites of animals and man (e.g., Bilharzia). In this laboratory special attention is paid to the structure and function of the reproductive organs of L. stagnalis, and to the relations between these organs and neurosecretory centres in the brain. 405 For the experimental study of this topic, a better knowledge of the oviposition activity, especially with regard to effects of the environment in the laboratory, would be advantageous. Indeed, little information about this point
Archives Néerlandaises de Zoologie (in 1967 continued as Netherlands Journal of Zoology) – Brill
Published: Jan 1, 1966
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.