Explanation of Raw Data files

The Vitareef data from each study site is available in either of two formats - as a comma separated value file or as a tab separated value text file.

Comma separated value files can be opened in Microsoft Excel or other spreadsheet programs. The data entry format for these files, from left to right, is as follows:

Tab separated value text files were created from the comma separated value files in order to break the data down into single lines of information per coral colony. Each Vitareef condition is represented by its own column with an on/off function.

The format for these data columns reads from left to right:

To display the results of each study site the conditions have been grouped together to form the percentage bars shown.


Condition codes #15 and #17. Condition code #17 is scored to represent a colony which is decreasing in size. There are several conditions which, when present, cause the colony to either decrease in size or be unable to grow unrestricted, therefore we consider the colony to be under threat.

Condition code #17 must use with #12, #4, #11, #16, #7, #5, #10, #13 May be used with #19 if invertebrate overgrowth is active.

Overall Health

Condition codes #2 and #18, which represent respectively healthy colony and almost healthy colony.


Condition codes #4, #11 and #16 which represent respectively edge damage, overgrowth by filamentous algae and overgrowth by macroalgae.


Condition code #8


Condition codes #6 and #12 which represent respectively sedimentation without and with tissue death.

Tissue damage

Condition codes #5 and #7 which represent respectively damage to tissue and skeleton, and damage to tissue only.