A Stationary Visual Census Technique for QuantitativelyAssessing Community Structure of Coral Reef Fishes
Southeast Fisheries Science Center
Document
(DOC)
| ID: 37042
| Published / External
Created: 2017-03-07
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Last Modified: 2023-08-11
Project (PRJ) | ID: 3803
ID: 37042
Document (DOC)
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* » Title | A Stationary Visual Census Technique for QuantitativelyAssessing Community Structure of Coral Reef Fishes |
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* Status | Completed |
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* » Abstract |
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. |
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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. |
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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 |
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Document Type | Technical Memorandum |
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Format | Acrobat Portable Document Format |
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Status Code | Published |
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* » Date Effective From | 1985 |
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Person | Bohnsack, James A |
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URL | https://www.researchgate.net/profile/James-Bohnsack |
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* » Date Effective From | 2015 |
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Organization | NOAA Institutional Repository (REPOS) |
Email Address | noaa.repository@noaa.gov |
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URL | https://repository.library.noaa.gov/ |
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Start Date | 2015 |
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End Date | Present |
» Download URL | https://repository.library.noaa.gov/view/noaa/1005 |
Distributor | NOAA Institutional Repository (REPOS) (2015 - Present) |
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Catalog Details
Catalog Item ID | 37042 |
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Metadata Record Created By | Lee M Weinberger |
Metadata Record Created | 2017-03-07 13:26+0000 |
Metadata Record Last Modified By | Lee M Weinberger |
» Metadata Record Last Modified | 2023-08-11 01:11+0000 |
Metadata Record Published | 2022-02-28 |
Owner Org | SEFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2022-02-28 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2023-02-28 |
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