Sampling accuracy of reef resource inventory technique

Long, Brian G., Andrews, Greg and Wang, You-Gan (2004) Sampling accuracy of reef resource inventory technique. Coral Reefs, 23 3: 378-385. doi:10.1007/s00338-004-0403-0

Author Long, Brian G.
Andrews, Greg
Wang, You-Gan
Title Sampling accuracy of reef resource inventory technique
Journal name Coral Reefs   Check publisher's open access policy
ISSN 0722-4028
Publication date 2004-09
Sub-type Article (original research)
DOI 10.1007/s00338-004-0403-0
Volume 23
Issue 3
Start page 378
End page 385
Total pages 8
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Abstract A new technique called the reef resource inventory (RRI) was developed to map the distribution and abundance of benthos and substratum on reefs. The rapid field sampling technique uses divers to visually estimate the percentage cover of categories of benthos and substratum along 2x20 m plotless strip-transects positioned randomly over the tops, and systematically along the edge of reefs. The purpose of this study was to compare the relative sampling accuracy of the RRI against the line intercept transect technique (LIT), an international standard for sampling reef benthos and substratum. Analysis of paired sampling with LIT and RRI at 51 sites indicated sampling accuracy was not different (P > 0.05) for 8 of the 12 benthos and substratum categories used in the study. Significant differences were attributed to small-scale patchiness and cryptic coloration of some benthos; effects associated with sampling a sparsely distributed animal along a line versus an area; difficulties in discriminating some of the benthos and substratum categories; and differences due to visual acuity since LIT measurements were taken by divers close to the seabed whereas RRI measurements were taken by divers higher in the water column. The relative cost efficiency of the RRI technique was at least three times that of LIT for all benthos and substratum categories and as much as 10 times higher for two categories. These results suggest that the RRI can be used to obtain reliable and accurate estimates of relative abundance of broad categories of reef benthos and substratum.
Keyword Coral reef benthos
Sampling accuracy
Rapid field survey technique
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
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Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 5 times in Scopus Article | Citations
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Created: Wed, 24 Nov 2010, 13:46:00 EST