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By D. R. Stoddart and R. E. Johannes

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WENTWORTH, C. K. 1953. Use of hand level and Brunton compass for determining and mapping minor topography. Atoll. Res. Bull. vol. 17, p. 22. -. 3 Aerial photography sensing techniques and other remote D. Hopley’ The environmental complexity and intricate patterns of coral reefs combined with the paucity of relevant information on hydrographic charts and logistic difficulties of systematic ground survey, have meant that where possible a high proportion of coral reef studies involving area1 definitions have utilized aerial photography.

Blue colour with spotty distribution of very light pinks if exposed at low Algal rim tide. Much darker tones than adjacent shingle ramparts and thus, more easily defined. Upper areas only visible to about 3 m depth. Light blues near surface. Sand chute deep indigo at depth. Spurs and grooves Surface pattern visible, but no penetration. Dark blue. Pink tones when exposed, light blues when just submerged, dark blues Living coral deeper than 1 m. Not visible at depths greater than 3 m. Algal terraces w z 2 features or coral-sand shingle or rubble are shown in very light tones and shingle ramparts become sharply defined, particularly where they drop into moats.

The ecology of Jamaican coral reefs. 1. Species composition and zonation. EcoZogy, vol. 40, p. 67-90. -. -; BURKE, K. 1966. Pleistocene and Holocene geology of the island shelf near Kingston, Jamaica. Mar. , vol. 4, p. 207-25. -. , GOREAU, N. I. 1973. The ecology of Jamaican coral reefs. II. Geomorphology, zonation, and sedimentarv phases. Bull. mar. , vol. 23, p. 399464. HACKETT, H. E: i977. Marine algae known from the Maldive Islands. Aroll Res. , vol. 210, p. l-30. H~KANSON, L. 1974. A mathematical model for establishing numerical values of topographical roughness for lake bottoms.

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