composition and activity. Some qualitative aspects of the plankton community 

 — namely the composition of the meroplankton — will have longer term 

 residual characteristics. 



4, As key components of the benthos change, their planktonic larvae 

 should do likewise (e.g., barnacle naupUi, which dominate some plankton 

 tows). The style of benthos succession after the 1965 freshwater kill has been 

 influenced by sewage loading, towards a high plant and animal biomass, 

 filter-feeding, and detritivore community. There mH be a lag in the benthos 

 response to sewage diversion. The lag will last until catastrophic events disrupt 

 the long-term inertia maintained by the high biomass, limited mobility, and 

 mutualism of material cycling among the benthic organisms. 



5. This relatively simple examination of mass balance, hydrography, and 

 trophic structure provides a useful basis for predicting responses of the 

 Kaneohe Bay ecosystem to sewage diversion. As we test the predictions by 

 post-diversion observations and continued experiments, we will be able to 

 refine and generalize our predictive ability further. 



ACKNOWLEDGEMENTS 



This study is funded by U. S. Environmental Protection Agency grant 

 R803983 and by the Hawaii Marine Affairs Coordinator. The Sewers Division 

 of the City and County of Honolulu has provided information for the study. 

 The investigation is being undertaken by the Hawaii Institute of Marine 

 Biology in cooperation with the Naval Ocean Systems Center. I thank the 

 working group leaders and other investigators for this cooperation in this team 

 endeavor. Hawaii Institute of Marine Biology Contribution Number 533. 



REFERENCES 



1. Banner, A. «. 1968. A Freshwater "Kill" on the Coral Reefs of Hawaii. 

 Hawaii Inst. Mar. Biol. Tech. Rep. 15:1-29. 



2. Barmer, A. H. 1974. Kaneohe Bay, Hawaii: Urban Pollution and a Coral 

 Reef Ecosystem. In: Proc. 2nd Int. Coral Reef Symp. (Brisbane) 



2:685-702. 



3. Brock, R. E., and J. H. Brock, (in press). A Method for Quantitatively 

 Assessing the Infaunal Community Residing in Coral Rock. limnol. 

 Oceanogr. 



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