Introduction 

Dominica is an island in the eastern Caribbean Sea, about half way between Puerto Rico and Trinidad and Tobago. Over 320 species of reef fishes have been identified during REEF Fish Surveys in Dominica.

25 most common species Dominica

The following ranking is based on the results of  943 REEF Fish Surveys covering a bottom time of 984 hours and 38 minutes. (REEF Gopgraphic Zone Report, May 30, 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.

Brown chromis- the most frequently observed  and reef fish with the highest mean abundance in Dominica. ''Reef Fish Identification'', New World Publications © 1994.

References and Further Reading

• Reef Environmental Education Foundation
• Geographic Zone Report- 05-30-2009
• REEF Fish Gallery 
• Humann, P. and N. Deloach (Editor), 1994. Reef Fish Identification: Florida, Caribbean, Bahamas. New World Publications, Inc. Jacksonville, FL. ISBN: 1878348078