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In situ feeding rate and diet selectivity in Tasmanian mysid species (Crustacea, Mysidacea)

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posted on 2023-05-16, 19:58 authored by Metillo, EB, Ritz, DA, Kerrie SwadlingKerrie Swadling
We 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

Hydrobiologia

Volume

589

Pagination

207-218

ISSN

0018-8158

Department/School

School of Natural Sciences

Publisher

Springer

Place of publication

Netherlands

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the environmental sciences

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