Please use this identifier to cite or link to this item: http://hdl.handle.net/11017/310
Title: An investigation of optimum methods and unit sizes for the visual estimation of abundances of some coral reef organisms
Authors: Mapstone, B.D.
Ayling, A.M.
Year of publication: 1998
Year: 1998
Publisher: Great Barrier Reef Marine Park Authority
Place of publication: Townsville, Qld.
Type of document: Report
Series/Report no.: Research publication series no. 47
Research publication
Abstract: Surveys of abundances of demersal biota provide the empirical bases for assessing the biological status of the Great Barrier Reef, testing the success or failure of management strategies, investigating anthropogenic impacts on the reef, and contextualising fundamental research. The accuracy and precision of the data that arise from surveys will be at least partly a function of the survey methods. It is important, therefore, to thoroughly document the sampling characteristics of those methods. We sought to examine the relative biases and characteristics of precision of sampling several species of benthic organisms and demersal fish by visual surveys of belt (or strip) transects of a range of sizes. We also examined the biases arising from several procedures for counting organisms within transects.
URI: http://hdl.handle.net/11017/310
ISBN: 9780642230430
Connection to GBRMPA: GBRMPA published this item
Subjects: Coral reef biology
Environmental sampling
Marine organisms
Environmental monitoring
Environmental monitoring
Coral reefs
Biological sampling
Demersal fish
Benthic fauna
Biology
Environmental management
Animals
Plants
Ecosystems
Processes
Reef Ecosystems and Species
Managing Multiple Use
Appears in Collections:Management



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