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JPR Advance Access originally published online on February 11, 2008
Journal of Plankton Research 2008 30(4):415-422; doi:10.1093/plankt/fbn015
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© The Author 2008. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Evaluation of a new technique for characterizing resting stage zooplankton assemblages in riverine slackwater habitats and floodplain wetlands

Nathan S. P. Ning1,2,*, Daryl L. Nielsen2, Terry J. Hillman1 and Phil J. Suter1

1 Department of Environmental Management and Ecology, La Trobe University, Po Box 821, Wodonga, Victoria 3689, Australia 2 Murray-Darling Freshwater Research Centre, Po Box 991, Wodonga, Victoria 3689, Australia

* CORRESPONDING AUTHOR: nathan.ning{at}csiro.au

Received on August 15, 2007; accepted on January 10, 2008


  Abstract

We evaluated a new technique to characterize resting stage zooplankton assemblages in both riverine slackwater habitats and floodplain wetlands, using coconut fibre mats (CFMs). Results obtained using the CFMs were compared with those obtained using the conventional sediment coring technique, over three different mat-setting durations. Presently, there is a paucity of suitable sampling techniques available for characterizing resting stage zooplankton assemblages, particularly for assessing resting stage production and/or use in intervention experiments. Results from this study indicate that, for slackwaters and wetlands, the structure and composition of resting stage communities obtained using mats did not differ from that obtained using the sediment coring technique, irrespective of the mat-setting duration. This suggests that the CFM technique can be used as an effective surrogate for the sediment coring technique to characterize resting stage assemblages in slackwaters and floodplain wetlands. In addition, the CFM technique offers the capacity to measure resting stage production over a known time period, and can be used in intervention experiments. Hence, the mats should prove to be useful in a number of settings, ranging from investigative research to management applications.

Corresponding editor: Roger Harris


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