282 



L. HILLIS-COLINVAUX 



TJFACROPORA 



REEF (MIXED ZONE) 



MOAT 







Fig. 91. Central section of panorama of Glory Be reef, with specimen areas of Thalassia 

 and opuntia rocks outlined. Textural changes in panorama outside the reef flat : 

 Zoanthus zone do not demarcate the bottom features accurately. The position of the 

 Acropora, north of the moat, is sketched in. 



Zones 1-4 of the Glory Be classification are all subdivisions of what 

 Goreau calls the inshore zone. These subdivisions each represent a very 

 different habitat, and it is suspected that the four zones together are 

 important to the total carbonate, carbon and Halimeda-segment flux 

 of the reef. The combined inshore zone at Glory Be is separated from the 

 shore side of a reef flat: Zoanthus zone (6) by a lagoon (5) as in the Goreau 

 typical reef. During the two periods of work at the reef, waves did not 

 break at the palmata zone, even though in Goreau's general model they 

 do, and he regards the palmata zone and the breaker zone as one and the 

 same. At Glory Be the waves broke at the leading edge of the reef flat 

 (Fig. 89), after crossing the inundated Acropora cervicornis a,nd palmata 

 corals or mixed zone (8) and the moat (7). For this reason we originally 

 called the Glory Be zone (7) "the breaker zone", and it is so described 



