Reef Fish Survey Techniques: Assessing the Potential for Standardizing Methodologies.

Dramatic changes in populations of fishes living on coral reefs have been documented globally and, in response, the research community has initiated efforts to assess and monitor reef fish assemblages. A variety of visual census techniques are employed, however results are often incomparable due to...

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Main Authors: Zachary R Caldwell, Brian J Zgliczynski, Gareth J Williams, Stuart A Sandin
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4844186?pdf=render
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author Zachary R Caldwell
Brian J Zgliczynski
Gareth J Williams
Stuart A Sandin
author_facet Zachary R Caldwell
Brian J Zgliczynski
Gareth J Williams
Stuart A Sandin
author_sort Zachary R Caldwell
collection DOAJ
description Dramatic changes in populations of fishes living on coral reefs have been documented globally and, in response, the research community has initiated efforts to assess and monitor reef fish assemblages. A variety of visual census techniques are employed, however results are often incomparable due to differential methodological performance. Although comparability of data may promote improved assessment of fish populations, and thus management of often critically important nearshore fisheries, to date no standardized and agreed-upon survey method has emerged. This study describes the use of methods across the research community and identifies potential drivers of method selection. An online survey was distributed to researchers from academic, governmental, and non-governmental organizations internationally. Although many methods were identified, 89% of survey-based projects employed one of three methods-belt transect, stationary point count, and some variation of the timed swim method. The selection of survey method was independent of the research design (i.e., assessment goal) and region of study, but was related to the researcher's home institution. While some researchers expressed willingness to modify their current survey protocols to more standardized protocols (76%), their willingness decreased when methodologies were tied to long-term datasets spanning five or more years. Willingness to modify current methodologies was also less common among academic researchers than resource managers. By understanding both the current application of methods and the reported motivations for method selection, we hope to focus discussions towards increasing the comparability of quantitative reef fish survey data.
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spelling doaj.art-3e2cec1a16ed42388716e6d700820c3b2022-12-21T22:26:29ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01114e015306610.1371/journal.pone.0153066Reef Fish Survey Techniques: Assessing the Potential for Standardizing Methodologies.Zachary R CaldwellBrian J ZgliczynskiGareth J WilliamsStuart A SandinDramatic changes in populations of fishes living on coral reefs have been documented globally and, in response, the research community has initiated efforts to assess and monitor reef fish assemblages. A variety of visual census techniques are employed, however results are often incomparable due to differential methodological performance. Although comparability of data may promote improved assessment of fish populations, and thus management of often critically important nearshore fisheries, to date no standardized and agreed-upon survey method has emerged. This study describes the use of methods across the research community and identifies potential drivers of method selection. An online survey was distributed to researchers from academic, governmental, and non-governmental organizations internationally. Although many methods were identified, 89% of survey-based projects employed one of three methods-belt transect, stationary point count, and some variation of the timed swim method. The selection of survey method was independent of the research design (i.e., assessment goal) and region of study, but was related to the researcher's home institution. While some researchers expressed willingness to modify their current survey protocols to more standardized protocols (76%), their willingness decreased when methodologies were tied to long-term datasets spanning five or more years. Willingness to modify current methodologies was also less common among academic researchers than resource managers. By understanding both the current application of methods and the reported motivations for method selection, we hope to focus discussions towards increasing the comparability of quantitative reef fish survey data.http://europepmc.org/articles/PMC4844186?pdf=render
spellingShingle Zachary R Caldwell
Brian J Zgliczynski
Gareth J Williams
Stuart A Sandin
Reef Fish Survey Techniques: Assessing the Potential for Standardizing Methodologies.
PLoS ONE
title Reef Fish Survey Techniques: Assessing the Potential for Standardizing Methodologies.
title_full Reef Fish Survey Techniques: Assessing the Potential for Standardizing Methodologies.
title_fullStr Reef Fish Survey Techniques: Assessing the Potential for Standardizing Methodologies.
title_full_unstemmed Reef Fish Survey Techniques: Assessing the Potential for Standardizing Methodologies.
title_short Reef Fish Survey Techniques: Assessing the Potential for Standardizing Methodologies.
title_sort reef fish survey techniques assessing the potential for standardizing methodologies
url http://europepmc.org/articles/PMC4844186?pdf=render
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