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In situ feeding rate and diet selectivity in Tasmanian mysid species (Crustacea, Mysidacea)
journal contribution
posted on 2023-05-16, 19:58 authored by Metillo, EB, Ritz, DA, Kerrie SwadlingKerrie SwadlingWe determined in situ feeding rates of three co-occurring coastal mysid species using [methyl-3H]-thymidine-labelled algal detritus (Lessonia corrugata), NaH14CO3-labelled phytoplankton (Isochrysis galbana) and zooplankton (Artemia sp. nauplii). All three species showed a wide and overlapping range of feeding rates on the three food types, suggesting they were broadly omnivorous. However, selectivity studies often showed a strong preference for animal prey. Although there was an overlap in the types of food the mysids ingested, some degree of feeding niche partitioning was demonstrated. Paramesopodopsis rufa tended to be more carnivorous, Tenagomysis tasmaniae fed least on zooplankton and phytoplankton, and largely on algal detritus, and Anisomysis mixta australis ingested few zooplankters, and moderate amounts of algal detritus and phytoplankton. © 2007 Springer Science+Business Media B.V.
History
Publication title
HydrobiologiaVolume
589Pagination
207-218ISSN
0018-8158Department/School
School of Natural SciencesPublisher
SpringerPlace of publication
NetherlandsRepository Status
- Restricted