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in the estuarine zone. The research and study programs which will 

 yield this Information are in the categories of: 



(1) Ecology, taken to Include base line Information, 

 broad ecological studies, biology, water quality, 

 natural variability, and Interface factors. 



(2) Toxicity, taken to include bloassay needs and 

 methodology, sublethal effects, and mortality phen- 

 omena. 



(3) Microbiology, taken to Include the regenera- 

 tion of plant nutrients, biodegradation of organic 

 wastes, eutrophication, and pathogens. 



(4) Physics and mathematics, taken to include hydrau- 

 lics, sedimentation, effects of structures and physical 

 modifications, and physical and mathematical modeling. 



(5) Planning, taken to include economics, law, social 

 and demographic factors and trends, resource evaluation 

 and allocation, and the role of technical research and 

 study in supportinq a comprehensive management program. 



(6) Needs of researchers, taken to include environ- 

 mental modeling, methodology (both laboratory and field 

 techniques), data processing, training needs, and estua- 

 rine zone laboratories. 



The various agencies and institutions working in estuaries should coordinate 



