VI-185 



7. Fresh water inflow 



8. Phosphates, nitrates, nitrites, silicates, sugar 



9. Sediment deposition, removal, character, and 

 variation 



B. Biological factors 



1. Phytoplankton identification, distribution, abudance, 

 and contribution to the food web 



2. Zooplankton; identification, distribution, abundance, 

 role in the food web, and significance as economically 

 important species 



3. Fixed vegetation; identification, distribution, 

 abundance, contribution to the food weo and habitat 

 value 



4. Sessile animals - identification, distribution, 

 abundance, importance in the ecosystem, and economic 

 values 



5. Mobile animals - identification, distribution, abun- 

 dance, importance in the ecosystem, and economic value 



VI. Laboratory studies of the physiology and behavior of plants 

 and animals under natural conditions and under pollutional 

 stress. 



A. Responses and tolerance of plants and animals to vari- 

 ations in: 

 a. Salinity 



