Fish assemblages and benthic habitats of Buck Island Reef National Monument (St. Croix, U.S. Virgin Islands) and the surrounding seascape
A characterization of spatial and temporal patterns
by United States. National Oceanic and Atmo...
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Last edited by Shellie Jacobson
June 29, 2012 | History
This report provides a spatial and temporal characterization of Buck Island Reef National Monument and the surrounding seascapes of northeastern St. Croix, US Virgin Islands. The project is a component of NOAA's Coral Reef Conservation Program and the National Park Service.
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Fish assemblages and benthic habitats of Buck Island Reef National Monument (St. Croix, U.S. Virgin Islands) and the surrounding seascape: A characterization of spatial and temporal patterns
May 2008, National Oceanic and Atmospheric Administration (NOAA)
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Book Details
Table of Contents
Contents
i Executive Summary
ii Table of Contents
iii List of Tables and Figures
1 Introduction of Study Area................................1
1.1 Background......................................1
1.2 Environmental monitoring and ecosystem changes around Buck Island..........................3
1.3 Benthic habitat mapping in the region...................................4
2 Methods ..............................................5
2.1 Field survey methods.......................................5
2.1.1 Benthic habitat surveys...................................................5
2.1.2 Fish surveys................................................6
2.1.3 Macroinvertebrates count.........................................7
2.1.3 Observer training...............................................7
2.1.4 Data management.....................................................7
2.2 Analyses .................................................7
2.2.1 Characterizing patterns in benthic habitat cover.............................7
2.2.2 Characterizing patterns in fish species communities...........................9
2.2.3 Comparison of fish densities and species presence between 1979 and 2001-2006........10
2.2.4 Characterizing patterns in macroinvertebrate abundance..........................10
3 Results ...................................11
3.1 Benthic habitat cover.........................................11
3.1.1 Characterization of colonized hardbottom areas....................................11
3.1.2 Benthic cover inside and outside BIRNM..................................13
3.1.3 Spatial patterns in benthic cover...................................14
3.1.4 Seasonal and inter-annual patterns in benthic cover........................19
3.1.5 Mapping threatened Acropora spp. inside and outside BIRNM...................21
3.2 Fish communities, groups and species...............................23
3.2.1 Fish community metrics..................................23
3.2.2 Fish community composition......................................23
3.2.3 Fish groups......................................23
3.2.4 Individual species..............................................28
3.2.5 Spatial distribution patterns and species-habitat associations.........................31
3.2.6 Fish size frequency distributions..............................................41
3.2.7 Comparison of fish densities and species presence between 1979 and 2001-2006........45
3.2.8 Synoptic overview of inter-annual trends in mean fish metrics (2003-2006)....................45
3.2.9 Seasonal and inter-annual patterns in fish community metrics...........................49
3.2.10 Seasonal and inter-annual patterns in fish groups and species..........................51
3.3 Macroinvertebrate spatial distribution patterns and species-habitat associations.............57
3.3.1 queen conch (Stombus gigas)..................................57
3.3.2 Long-spined urchin (Diadema antillarum)..................................59
3.3.3 Historical comparison of Diadema abundance.........................60
3.3.4 Caribbean spiny lobster (Panulirus argus)..............................60
4 Discussion .....................61
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| June 29, 2012 | Edited by Shellie Jacobson | Edited without comment. |
| June 29, 2012 | Edited by Shellie Jacobson | Edited without comment. |
| June 29, 2012 | Edited by Shellie Jacobson | Edited without comment. |
| June 29, 2012 | Created by Shellie Jacobson | Added new book. |