. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 81 where Mn is the sum of the smaller abundance values of each species encountered in the sample pair AB; M^ is the sum of the abundance values of each species in sample A; and Mu is the sum of the abundance values of each species in sample B. The resulting similarity matrix is reduced (after the technique of McCammon, 1968; McCammon and Wenninger, 1970) to the dendrograph shown as Fig. 28. The distance between any two adjacent samples on the hori- zontal axis of the dendrograph is proportional to their dissim
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 81 where Mn is the sum of the smaller abundance values of each species encountered in the sample pair AB; M^ is the sum of the abundance values of each species in sample A; and Mu is the sum of the abundance values of each species in sample B. The resulting similarity matrix is reduced (after the technique of McCammon, 1968; McCammon and Wenninger, 1970) to the dendrograph shown as Fig. 28. The distance between any two adjacent samples on the hori- zontal axis of the dendrograph is proportional to their dissimilarity. Similarity within groups or clusters is represented as distance along the vertical scale. Major clusters corresponding to four of the zones previously described are apparent and are indicated on the figure. â Cluster I â â Cluster II ⢠â¢4^-Cluster III-W-* -Between-group distance- I -Cluster IV-. I I I Numbers of samples in each cluster from each zone 12 26 22 10 Line reef - Millepora - Millepora *+ Porites Altered Few, mixed species, low coverage â Physically controlled - I â¦Ocean reef-* Highly diverse high coverage 28 Pass Pocilloporat Acropora meandrina \ formosa Biologically accommodated- Ocean (deep) Pass Altered Line Ocean (shallow) Zone Dominant S species » â o 3 Major influence Figure 28. Dendrograph based on Sanson's Similarity Indices computed for all sample 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 Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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