Common coral reef fishes of St. Thomas
Published: October 7, 2009, 4:24 pm
Updated: September 20, 2010, 7:37 pm
This article has been reviewed by the following Topic Editor:
J. Emmett Duffy Introduction
St. Thomas is one of the U. S. Virgin Islands in the Caribbean Sea. Over 320 species of reef fishes have been identified during REEF Fish Surveys in St. Thomas.
25 most common species in St. Thomas
The following ranking is based on the results of 975 REEF Fish Surveys covering a bottom time of 977 hours and 7 minutes. (REEF Geographic Zone Report. June 4, 2009). The species are ranked by the percentage of surveys in which a species was observed. Abundance of fishes in REEF Fish Surveys are estimated using the following categories: 1- single =1 individual, 2-few = 2- 10 individuals, 3-many = 11-100 individuals, and 4-abundant > 100 individuals. The mean numeric abundance (ranging from 1 - 4) was calculated for each species.. The mean abundance category is determined as follows: mean abundance category 0 - 1.49 = single, 1.50 - 1.99 = single-few, 2.0 - 2.49 = few, 2.5 - 2.99 = few-many, 3.0 - 3.49 = many, 3.5 -3.99 = many-abundant, and 4.0 = abundant.
Blue tang—the most frequently observed reef fish in St. Thomas. ''Reef Fish Identification'', New World Publications © 1994.
Bluehead—the reef fish with the highest mean adundance in St. Thomas. ''Reef Fish Identification'', New World Publications © 1994.
Species | % of surveys observed | Mean abundance category |
1. Blue tang | 96.9 | few-many |
2. Bluehead | 94.6 | many-abundant |
3. Bicolor damselfish | 91.7 | many |
4. Foureye butterflyfish | 91.1 | few |
5. Yellowtail snapper | 90.4 | few-many |
6. Stooplight parrotfish | 90.3 | few-many |
7. Ocean surgeonfish | 88.8 | few-many |
8. Redband parrotfish | 87.7 | few-many |
9. French grunt | 87.4 | few-many |
10. Sergeant major | 84.7 | many |
11. Yellowhead wrasse | 84.6 | few-many |
12. Brown chromis | 83.9 | many |
13. Bar jack | 83.3 | few-many |
14. Graysby | 82.5 | few |
15. Longspine squirrelfish | 81.3 | few |
16. Spotted goatfish | 80.9 | few |
17. Yellowtail damselfish | 80.9 | few |
18. Yellow goatfish | 79.9 | few-many |
19. Sharpnose puffer | 79.3 | few |
20. Blue chromis | 78.9 | few-many |
21. Fairy basslet | 78.2 | few-many |
22. Beaugregory | 74.1 | few |
23. Spanish hogfish | 73.3 | few |
24. Doctorfish | 73.2 | few |
25. Princess parrotfish | 72.8 | few |
References and Further Reading
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Citation
Mark McGinley (Lead Author);J. Emmett Duffy (Topic Editor) "Common coral reef fishes of St. Thomas". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth October 7, 2009; Last revised Date September 20, 2010; Retrieved May 25, 2013 <http://www.eoearth.org/article/Common_coral_reef_fishes_of_St._Thomas>
The Author
Mark McGinley is an Associate Professor in the Honors College and Department of Biological Sciences at Texas Tech University. He has conducted research in the evolutionary, behavioral, and community ecology of animals and plants. Dr. McGinley’s recent scholarly interests focus on educating the general public about scientific (particularly environmental) issues. He is currently working closely with students in an interdisciplinary degree program, Natural History and Humanities, which combine ... (Full Bio)
Introduction
St. Thomas is one of the U. S. Virgin Islands in the Caribbean Sea. Over 320 species of reef fishes have been identified during REEF Fish Surveys in St. Thomas.
25 most common species in St. Thomas
The following ranking is based on the results of 975 REEF Fish Surveys covering a bottom time of 977 hours and 7 minutes. (REEF Geographic Zone Report. June 4, 2009). The species are ranked by the percentage of surveys in which a species was observed. Abundance of fishes in REEF Fish Surveys are estimated using the following categories: 1- single =1 individual, 2-few = 2- 10 individuals, 3-many = 11-100 individuals, and 4-abundant > 100 individuals. The mean numeric abundance (ranging from 1 - 4) was calculated for each species.. The mean abundance category is determined as follows: mean abundance category 0 - 1.49 = single, 1.50 - 1.99 = single-few, 2.0 - 2.49 = few, 2.5 - 2.99 = few-many, 3.0 - 3.49 = many, 3.5 -3.99 = many-abundant, and 4.0 = abundant.
Blue tang—the most frequently observed reef fish in St. Thomas. ''Reef Fish Identification'', New World Publications © 1994.
Bluehead—the reef fish with the highest mean adundance in St. Thomas. ''Reef Fish Identification'', New World Publications © 1994.
Species | % of surveys observed | Mean abundance category |
1. Blue tang | 96.9 | few-many |
2. Bluehead | 94.6 | many-abundant |
3. Bicolor damselfish | 91.7 | many |
4. Foureye butterflyfish | 91.1 | few |
5. Yellowtail snapper | 90.4 | few-many |
6. Stooplight parrotfish | 90.3 | few-many |
7. Ocean surgeonfish | 88.8 | few-many |
8. Redband parrotfish | 87.7 | few-many |
9. French grunt | 87.4 | few-many |
10. Sergeant major | 84.7 | many |
11. Yellowhead wrasse | 84.6 | few-many |
12. Brown chromis | 83.9 | many |
13. Bar jack | 83.3 | few-many |
14. Graysby | 82.5 | few |
15. Longspine squirrelfish | 81.3 | few |
16. Spotted goatfish | 80.9 | few |
17. Yellowtail damselfish | 80.9 | few |
18. Yellow goatfish | 79.9 | few-many |
19. Sharpnose puffer | 79.3 | few |
20. Blue chromis | 78.9 | few-many |
21. Fairy basslet | 78.2 | few-many |
22. Beaugregory | 74.1 | few |
23. Spanish hogfish | 73.3 | few |
24. Doctorfish | 73.2 | few |
25. Princess parrotfish | 72.8 | few |
References and Further Reading
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