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Appraisal of visual assessments of habitat complexity and benthic composition on coral reefs

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dc.contributor Australian Inst Marine Sci
dc.contributor Tmc
dc.contributor Australian Institute Of Marine Science
dc.contributor Univ Newcastle Upon Tyne
dc.contributor Newcastle University - Uk
dc.contributor Sch Marine Sci & Technol
dc.contributor Australian Institute Of Marine Science (aims) en POLUNIN, N. V. C. WILSON, S. K. GRAHAM, N. A. J. 2017-03-21T00:57:35Z 2017-03-21T00:57:35Z 2013-02-28T06:42:25Z 2019-05-09T01:11:53Z 2017-03-21T00:57:35Z 2017-03-21T00:57:35Z 2013-02-28T06:42:25Z 2019-05-09T01:11:53Z 2007-05-01
dc.identifier 8279 en
dc.identifier.citation Wilson SK, Graham NAJ and Polunin NVC (2007) Appraisal of visual assessments of habitat complexity and benthic composition on coral reefs. Marine Biology. 151: 1069-1076. en
dc.identifier.issn 0025-3162
dc.description Link to abstract/full text - en
dc.description.abstract Visual assessments of topographic habitat structure and benthos on coral reefs were appraised using quantitative data collected from 16 replicate surveys within each of 21 sites on Seychelles reefs. Results from visual assessments of reef benthos were similar to those obtained using techniques frequently used to assess benthic complexity and composition. Visual estimates of habitat topography were correlated with rugosity, reef height and holes of 10-70 cm diameter, whilst visual estimates of benthic composition were very similar to those obtained from line intercept transects. Visual estimates of topography correlated strongly with species richness of fish communities and explained 42% of the variation in these data. The relationship between visual estimates of topography and species richness is strongest with fish 10-30 cm total length (TL), abundance of fish within this size category also correlating positively with topographic visual assessments. Visual techniques are prone to observer bias, however with regular training they can be used to quickly provide a reliable and effective means of assessing habitat complexity and benthos on coral reefs.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Null
dc.relation.ispartof Marine Biology - pages: 151: 1069-1076 en
dc.subject Great-barrier-reef
dc.subject Marine & Freshwater Biology
dc.subject Assemblages
dc.subject Biomass
dc.subject Disturbance
dc.subject Take Marine Reserves
dc.subject Fish Communities
dc.subject Ecosystems
dc.subject Abundance
dc.subject Indian-ocean
dc.subject Seychelles
dc.title Appraisal of visual assessments of habitat complexity and benthic composition on coral reefs
dc.type journal article en
dc.identifier.doi 10.1007/s00227-006-0538-3
dc.identifier.wos WOS:000246098900022

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