Buoyancy Changes as Related to Respiratory Behavior in an Amphibious Snail, Pomacea Urceus (Müller), from Venezuela

Author(s)

Kathleen A. Burky, University of Dayton
Albert J. Burky, University of DaytonFollow

Document Type

Article

Publication Date

7-1977

Publication Source

The Nautilus

Abstract

The ampullariid Pomacea urceus uses its ctenidium and lung in respiration. The snails reach the surface with their siphon and ventilate their lung by withdrawing their head-foot in a pumping action. The lung gas also serves to change the buoyancy of the snails. After a ventilation a snail does not necessarily return to the same buoyancy level. They may achieve overall specific gravities of <1 to > 1 after a ventilation. They may remain submerged (s.g. > 1) or float (s.g.

Inclusive pages

97-104

ISBN/ISSN

0028-1344

Document Version

Published Version

Comments

Document is made available under the Creative Commons attribution-noncommercial-share-alike license: http://creativecommons.org/licenses/by-nc-sa/3.0/

Permission documentation is on file.

Publisher

Bailey-Matthews National Shell Museum

Volume

91

Peer Reviewed

yes

Issue

3

eCommons Citation

Burky, Kathleen A. and Burky, Albert J., "Buoyancy Changes as Related to Respiratory Behavior in an Amphibious Snail, Pomacea Urceus (Müller), from Venezuela" (1977). Biology Faculty Publications. 320.
https://ecommons.udayton.edu/bio_fac_pub/320