File(s) not publicly available
Differential chemosensory feeding behaviour by three co-occurring mysids (Crustacea, Mysidacea) from southeastern Tasmania
journal contribution
posted on 2023-05-16, 13:56 authored by Metillo, EB, Ritz, DAThree mysid species showed differences in chemosensory feeding as judged from stereotyped food capturing responses to dissolved mixtures of feeding stimulant (either betaine-HCl or glycine) and suppressant (ammonium). The strongest responses were to 50:50 mixtures of both betaine-ammonium and glycine-ammonium solutions. In general, the response curve to the different mixtures tested was bell-shaped. Anisomysis mixta australis only showed the normal curve in response to the glycine-ammonium mixture. The platykurtic curve for Tenagomysis tasmaniae suggests a less optimal response to the betaine-HCl-ammonium solution. Paramesopodopsis rufa reacted more strongly to the betaine-ammonium than to the glycine-ammonium solutions, and more individuals of this species responded to both solutions than the other two species. It is suggested that these contrasting chemosensitivities of the three coexisting mysid species serve as a means of partitioning the feeding niche. © 2002 Elsevier Science Inc. All rights reserved.
History
Publication title
Comparative Biochemistry and Physiology A - Molecular and Integrative PhysiologyVolume
134Pagination
399-408ISSN
1095-6433Department/School
Institute for Marine and Antarctic StudiesPublisher
Elsevier Science IncPlace of publication
NewYork, USARepository Status
- Restricted