37042
A Stationary Visual Census Technique for QuantitativelyAssessing Community Structure of Coral Reef Fishes
Document
Published / External
3803
Fish Data / Reef Fish Visual Census
Project
Completed
A new method is described and evaluated for visually sampling reef fish community structure in environments with highly diverse and abundant reef fish populations. The method is based on censuses of reef fishes taken within a cylinder of 7.5 m radius by a diver at randomly selected, stationary points. The method provides quantitative data on frequency of occurrence, fish length, abundance, and community composition, and is simple, fast, objective, and repeatable. Species are accumulated rapidly for listing purposes, and large numbers of samples are easily obtained for statistical treatment. The method provides an alternative to traditional visual sampling methods.
Observations showed that there were no significant differences in total numbers of species or individuals censused when visibility ranged between 8 and 30 m. The reefs and habitats sampled were significant sources of variation in number of species and individuals censused, but the diver was not a significant influence. Community similarity indices were influenced significantly by the specific sampling site and the reef sampled, but were not significantly affected by the habitat or diver.
To describe and evaluate a technique for providing quantitative data on frequency of occurrence, fish length, abundance, and community composition, in a simple, fast, objective manner, for visually sampling reef fish community structure in environments with highly diverse and abundant reef fish populations.
Title : A stationary visual census technique for quantitatively assessing community structure of coral reef fishes
Personal Author(s) : Bohnsack, James A. (James Anthony), 1947-;Bannerot, Scott P., 1959-;
Corporate Authors(s) : United States, National Marine Fisheries Service;United States, National Oceanic and Atmospheric Administration,;Coral Reef Conservation Program (U.S.);
Published Date : 1986
Technical Memorandum
Acrobat Portable Document Format
Published
Author
1985
Person
Bohnsack, James A
https://www.researchgate.net/profile/James-Bohnsack
Researchgate Page Dr Jim Bohnsack
His researchgate page
Online Resource
Distributor
2015
Organization
NOAA Institutional Repository
REPOS
noaa.repository@noaa.gov
https://repository.library.noaa.gov/
NOAA Institutional Repository Home Page
Online Resource
Unclassified
Open to everyone
download from provided link
2015
https://repository.library.noaa.gov/view/noaa/1005
2015
Organization
NOAA Institutional Repository
/noaa_1005_DS1.pdf
gov.noaa.nmfs.inport:37042
Lee Weinberger
2017-03-07T13:26:52
Lee Weinberger
2023-08-11T01:11:29
2022-02-28
Southeast Fisheries Science Center
SEFSC
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USA
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1001
Public
No
2022-02-28
1 Year
2023-02-28