A Comparison of Rapid Visual Assessments and Photo-Quadrat Analyses to Monitor Coral Reefs

Metadata Updated: October 9, 2019

A common problem for monitoring programs is a lag between collecting and disseminating results. Here, the authors show that the visual assessment of hard coral cover can provide a timely, generally reliable estimate, broadly comparable with values derived from photo-transect surveys, with known relative bias. Photo-quadrat analysis is critical in cases where a more detailed appraisal of habitat composition at finer taxonomic level is necessary and when time and resources permit. A benefit of conducting rapid visual assessments in addition to the photo-quadrat surveys is that the visual estimates are instantly available. Visual estimates of encrusting algae, and particularly fleshy macroalgae and turf algae estimates were not in as close agreement with the photo-quadrat estimates, highlighting the importance of improved and more rigorous training of observers. It is highly desirable for observer errors to be reduced as much as possible through improved training and the regular assessment of inter-observer variability.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date April 30, 2019
Metadata Updated Date October 9, 2019

Metadata Source

Harvested from DOI CKAN Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date April 30, 2019
Metadata Updated Date October 9, 2019
Publisher Fish and Wildlife Service
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Brent Frakes
Maintainer Email
Public Access Level public
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Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Data First Published 2015-05-15
Homepage URL https://ecos.fws.gov/ServCat/Reference/Profile/52057
Data Last Modified 2015-05-15
Program Code 010:094, 010:028
Related Documents "https://ecos.fws.gov/ServCat/Reference/Profile/52057"
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