Biodiversity

Common coral reef fishes of Little Cayman

July 29, 2012, 11:54 pm
Content Cover Image

Chaetodon capistratus (Four-eyed Butteflyfish). Source: David Snyder/Fishwise Professional

Little Cayman is one of the Cayman Islands. Over 325 species of reef fishes have been identified during REEF Fish Surveys in Little Cayman.

25 most common species in Little Cayman

The following ranking is based on the results of 2080  REEF Fish Surveys covering a bottom time of 2218 hours and 51 minutes. (REEF Geographic Zone Report.  June 3, 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.

caption Blue chromis—the most frequently observed reef fish in Little Cayman. ''Reef Fish Identification'', New World Publications © 1994.

 

caption Fairy basslet—the reef fish with the highest mean adundance in Little Cayman. ''Reef Fish Identification'', New World Publications © 1994.

 

Species

% of surveys observed

Mean abundance category

 1. Blue chromis

 95.6

 many-abundant

 2. Blue tang

 95.5

 few-many

 3. Stoplight parrotfish

 93.5

 few-many

 4. Bluehead

 93.3

 many

 5. Fairy basslet

 92.7

 many-abundant

 6. Bicolor damselfish

 91.8

 many

 7. Foureye butterflyfish

 89.8

 few

 8. Brown chromis

 88.9

 many

 9. Bar jack

 87.8

 few

 10. Yellowtail snapper

 86.7

 few-many

 11. Black durgon

 83.6

 few-many

 12. Schoolmaster     

 82.6

 few-many

 13. Yellowhead wrasse

 82.0

 few-many

 14. Graysby

 79.1

 few

 15. Princess parrotfish

 78.8

 few-many

 16. Banded butterflyfish

 78.3

 single-few

 17. Creole wrasse

 77.9

 many-abundant

 18. Striped parrotfish

 75.8

 few-many

 19. Nassau grouper  

 75.0

 single-few

 20. Sharpnose puffer

 74.9

 few

 21.  Redband parrotfish 

 74.2

 few-many

 22.  Ocean surgeonfish

 70.5

 few-many

 23. French grunt 

 70.3

 few

 24. Coney 

 68.2

 few

 25.  Saddled blenny     

 66.9

 few-many

References and Further Reading

Glossary

Citation

(2012). Common coral reef fishes of Little Cayman. Retrieved from http://www.eoearth.org/view/article/51cbed4d7896bb431f69138b

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