Drivers of ciliate and phytoplankton community structure across a range of water bodies in southern New Zealand

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Title Drivers of ciliate and phytoplankton community structure across a range of water bodies in southern New Zealand
Author Galbraith, Lisa Marie; Burns, Carolyn W.
Journal Name Journal of Plankton Research
Year Published 2010
Place of publication United Kingdom
Publisher Oxford University Press
Abstract The abundance and biomass of phytoplankton and ciliate taxa in lentic fresh waters were related to their resources, physicochemical conditions, potential consumers and water body type in 45 water bodies ranging from deep oligotrophic lakes to swamps, ponds and estuarine wetlands in South Island, New Zealand. Distinct phytoplankton assemblages were related to each water body type. Phytoplankton genera were positively related most strongly to dissolved reactive phosphorus concentrations, and also related positively to the biomass of ciliate consumers. The biomass of ciliate taxa was higher in swamps and ponds than other water body types. Biomass of the ciliate taxa: oligotrichs, prostomatids and Strombidium, was related strongly and positively to the biomass of their phytoplankton resource, and less strongly related to metazooplankton predators: calanoid copepods and Ceriodaphnia dubia. Our findings suggest that resource availability (bottom-up drivers) may be stronger determinants of phytoplankton and ciliate community composition than consumers (top-down effects).
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1093/plankt/fbp134
Volume 32
Issue Number 3
Page from 327
Page to 339
ISSN 0142-7873
Date Accessioned 2010-11-18
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Zoology
URI http://hdl.handle.net/10072/36833
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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