TABLE 8. Summary of Biological Observations Made at Transect T-6, Approximately 840 m Offshore of 
the Honolulu International Airport Reef Runway (Station C) on 21 November 1996 


Quadrat Distance Along Transect
I. Quadrat Survey

0 m
5 m
10 m
15 m
20 m

Algae





Porolithon onkodes
7.5


2.0
0.7
Cladymenia pacifica

0.1



Sponges





Chondrosia chucalla


0.1


Soft Corals





Anthelia edmondsoni

0.1
0.1


Palythoa tuberculosa




0.6
Corals





Porites lobata
6.3


6.1
2.9
Porites compressa
0.7




Pocillopora meandrina
2.0


0.9
0.1
Montipora patula
4.8
3.0
1.7
3.2

Pavona duerdeni

0.3



Pavona varians

0.8



Rubble

52.7
68.1
9.0
80.7
Hard Substratum
78.7
43.0
30.0
78.8
15.0


II. Macroinvertebrate Census (4 m ? 20 m)
No. of 
Individuals





Phylum Mollusca





Spondylus tenebrosus
1




Phylum Echinodermata





Echinometra mathaei
1




Echinothrix diadema
3






III. Fish Census (4 m ? 20 m)






30 Species





234 Individuals





Estimated Standing Crop = 83 g/m2






NOTE: Results of the 5-m2 quadrat sampling of the benthic community are presented in Part I as percent cover, counts of 
diurnally exposed macroinvertebrates are given in Part II, and a summary of the fish census is given in Part III. Water depth 
ranges from 10.7 to 11.6 m; mean coral coverage is 6.6% (quadrat method).


