Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-06T12:12:36.004Z Has data issue: false hasContentIssue false

A comparative study of trophi morphology in Seisonidea (Rotifera)

Published online by Cambridge University Press:  01 February 1998

Hendrik Segers
Affiliation:
Laboratory for Animal Ecology, Zoogeography and Nature Conservation, Department M.S.E., University of Gent, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium
Giulio Melone
Affiliation:
Department of Biology, University of Milan, Via Celoria 26, 20133 Milano, Italy
Get access

Abstract

We report on a comparative scanning electron microscopical study of trophi morphology of the two species making up the Class Seisonidea of Phylum Rotifera. The trophi of the two are generally similar, with morphological differences being interpreted as the result of adaptations to different food sources: the trophi of Seison nebaliae are adapted to particle-feeding, that of Seison annulatus probably functions by piercing the integument of the host using the fulcrum tip, and subsequently sucking out haemolymph. This difference in feeding ecology is believed to contribute to the co-occurrence of both species on the same host. A new hypothesis on the evolution of rotifer trophi is proposed.

Type
Research Article
Copyright
© 1998 The Zoological Society of London

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)