. Advances in marine biology: volume 17. Coral fisheries. L. HILLIS-COLINVAUX. Fig. 100. Surge channel behind the algal ridge on the seaward reef of Enewetak Islet, Enewetak Atoll. Halimeda grows, to some extent at least, in the passages and caverns of these channels, although it is not shown here. The algal growth on the rock surface includes blue-greens, ulotrichean filaments and lush green skeins of Bryopsis. reef, and Ladd in his visits of 1950 and 1952 found this and some of the other reefs of the windward shores drab (Emery et al., 1954), a condition which has been attributed both to rat
. Advances in marine biology: volume 17. Coral fisheries. L. HILLIS-COLINVAUX. Fig. 100. Surge channel behind the algal ridge on the seaward reef of Enewetak Islet, Enewetak Atoll. Halimeda grows, to some extent at least, in the passages and caverns of these channels, although it is not shown here. The algal growth on the rock surface includes blue-greens, ulotrichean filaments and lush green skeins of Bryopsis. reef, and Ladd in his visits of 1950 and 1952 found this and some of the other reefs of the windward shores drab (Emery et al., 1954), a condition which has been attributed both to rate of reef growth, and to the effects of bombardment and release of fuel oil during the Second World War. At the time of my visit to the area in 1975 the macrofiora was sparse. There was, however, a good growth of smaller algae with much associ- ated fauna. Many of the algae grew in short spongy turfs, and as green and blackish slimy rock coatings. The only Halimeda found was macrophysa, living in crevices behind the algal ridge, in water several centimetres deep at low tide. In the abandoned limestone quarry of the inner back-reef of Enewetak Islet sizeable populations of the sprawlers distorta and gracilis grew, as well as macrophysa, and a bushy form of minima. The water depth is 1-1-3 m at low tide. This setting is more protected than the open reef Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hillis-Colinvaux, Liewellya. London : Academic Press ; Toronto
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