Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/1634
Title: Optimizing a sampling strategy for assessing hyporheic invertebrate biodiversity using the Bou-Rouch method: Within-site replication and sample volume
Contributor(s): Boulton, Andrew John  (author); Dole-Olivier, MJ (author); Marmonier, P (author)
Publication Date: 2003
DOI: 10.1127/0003-9136/2003/0156-0431
Handle Link: https://hdl.handle.net/1959.11/1634
Abstract: To determine the optimal combination of sample volume and replicationrequired to assess hyporheic taxa richness and abundance, 10 consecutive one-L Bou-Rouch pump samples were collected from each of 9 wells inserted in a 3x3m grid at two sites on the Rhône River, France. Variable and non-linear relationships between sample volume and numbers of taxa and individuals demonstrate that hyporheic densities cannot simply be expressed per L for comparison among studies that have collected different sample volumes. Our results imply that an optimal sampling design for rapid assessment of hyporheic biodiversity and abundance would need at least five samples of 3–5 L to provide reasonable levels of precision (20%). At both sites, 6–7 replicates of 5L sufficed to be able to detect a 50% change in mean taxa richness with a power of 0.90 and α = 0.10. Although this sampling exercise should be repeated whenever accurate population estimates are needed, it appears that the spatial variance of the hyporheos at a fine scale (< 9m²) is great enough to obscure detection of potentially large differences when replication or sample volume is small.
Publication Type: Journal Article
Source of Publication: Archiv für Hydrobiologie, 156(4), p. 431-456
Publisher: E Schweizerbart'sche Verlagsbuchhandlung
Place of Publication: Germany
ISSN: 0003-9136
2363-7110
1863-9135
Fields of Research (FoR) 2008: 060808 Invertebrate Biology
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Publisher/associated links: http://www.schweizerbart.de/j/archiv-hydrobiologie/
Appears in Collections:Journal Article

Files in This Item:
2 files
File Description SizeFormat 
Show full item record

SCOPUSTM   
Citations

40
checked on Dec 14, 2024

Page view(s)

1,108
checked on Aug 3, 2024
Google Media

Google ScholarTM

Check

Altmetric


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.