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 12 August 1998 


Quadrat Distance Along Transect
I. Quadrat Survey

0 m
5 m
10 m
15 m
20 m

Algae





Porolithon onkodes
2.6



0.5
Desmia hornemannii

0.2
0.1


Sponges





Spirastrella coccinea


0.6


Chondrosia chucalla 


0.7

0.1
Soft Corals





Anthelia edmondsoni



0.2
0.1
Palythoa tuberculosa 




1.1
Corals





Porites lobata
9.0


9.0
4.1
Pocillopora meandrina
3.6
1.1
1.2
2.0
1.1
Montipora patula
4.7
2.9
0.4
4.5
1.2
Montipora verrucosa 



0.8
0.1
Pavona varians

1.0

0.3

Sand

4.0
7.0


Rubble

31.0
75.0
17.0
9.0
Hard Substratum
80.1
59.8
15.0
66.2
82.7


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


Phylum Mollusca

Spondylus tenebrosus
1
Octopus cyanea 
1
Phylum Arthropoda

Aniculus strigatus 
1
Charybdis orientalis 
1
Phylum Annelida

Loimia medusa 
1
Spirobranchus giganteus corniculatus
3
Phylum Echinodermata

Echinometra mathaei
5


III. Fish Census (4 m ? 20 m)

29 Species
171 Individuals
Estimated Standing Crop = 89 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 9.4% (quadrat method).


