Authors / CoAuthors
Przeslawski, R.
Abstract
Zooplankton sampling encompasses a range of methods, but these require specialized equipment, cost, and time. Ship-pumped seawater provides an opportunity to broadly quantify zooplankton abundance and richness during surveys with objectives other than zooplankton characterisation. Here, the effectiveness of sampling ship-pumped seawater for zooplankton was evaluated through the identification of established diurnal and biogeographic patterns as well as comparisons between sampling with surface tows and ship-pumped seawater over the Western Australian margin. Only one species was classed as a fouling organism (unknown Y-shaped polyps), and only one group was excluded from sampling via ship-pumped water (chaetognaths). As expected, we found significant diurnal differences in zooplankton abundance, as well as differences between the Houtman sub-basin (~ 100 km offshore) and the Wallaby (Cuvier) Plateau (~500 km offshore). These results suggest that sampling zooplankton with ship-pumped waters can result in useful broad comparisons of the overall abundance and number of taxa among regions but only when comparisons with surface tows are made. Importantly, sampling via ship-pumped water is not an appropriate method from which to characterize zooplankton communities and in no way replaces or negates the need for more traditional and comprehensive sampling of zooplankton.
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nonGeographicDataset
eCat Id
69595
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
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2601
Australia
Keywords
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- External Publication
- ( Theme )
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- marine biodiversity
- ( Theme )
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- marine
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
Publication Date
2009-09-30T00:00:00
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geoscientificInformation
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