Common coral reef fishes of St. Thomas

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Yellowtail snapper (Ocyurus chrysurus) (By Fred Hsu (Wikipedia:User:Fredhsu on en.wikipedia) (Photo taken and uploaded by user) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons)

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

caption Blue tang—the most frequently observed reef fish in St. Thomas. ''Reef Fish Identification'', New World Publications © 1994. 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. 

 

 

caption Bluehead—the reef fish with the highest mean abundance in St. Thomas. ''Reef Fish Identification'', New World Publications © 1994. 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.

 

 

 

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

Glossary

Citation

McGinley, M. (2014). Common coral reef fishes of St. Thomas. Retrieved from http://www.eoearth.org/view/article/151373

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