Taxon Feeding Mode Size/length [cm] Ecological Role
A: Wrasse (Labridae) Carnivore Mainly 5-15 Mostly shalloe reef, incl. cleaner fishes
B: Grouper  (Epinephelus, Cephalopholosis) Carnivore >30 High level predatore, mostly  solitary, hiding in big holes, habit often deeper than 5m
C: Snapper (Lutjianidae) Carnivore >30 High level predatore, can form small schools, hiding in holes
D: Sweet Lip (Haemulidae) Carnivore 10-40 Low- medium level predator, small groups, hide i. a. under table corals
E: Sugeon fish (Acanthuridae) Herbivore 10-30 Grazing/ scraping of algae, often in schools
F: Parrot fish (Scaridae) Herbivore/ Carnivore 10-40 Grazing/ scraping of algae and polyps from corals Some times in schools, bioeroder, hide in holes during nights
G: Butter fly fish (Chaetodontidae) Carnivore 7-20 Feed on coral polyps and sometimes on small worms etc., small to large schools, hide in creef crevices during nights
H: Rabbit fish (Siganidae) Herbivore 15-30 Algae feeder, solitary or in small  schools , live between cora;l branches
I: Sea Urchin (Echinoidea) Herbivore <12 Important herbivorae-availability of algae
J: Gaint Clam (Tridacna) Mixotrophic <60 Reef building-Clam fishery
K: Sea Cucumber (Holothurioidea) Sediment/ detritus <60 Detritus feeder-availability of organic matter, fishery
L: Crown-pf-Thron (Acanthaster planci) Corallivore <50 Corollivorae-epidemics lead to great coral loss
Table 2: Functional groups of indicator reef fish (A-H) and invertebrates (I-L) as suggested by Reef Check (Hodgson et al. 2006). Functional groups differ in feeding mode, size, habitat preferences and social behavior. (Reef Check uses most fish taxa to assess reef health and fishery impact; the indicator function for the invertebrates is mentioned in the table).