THE FUTURE 



The science of limnology and the study of eutrophication have come of 

 age since 1900, but considerable work still remains if this nation is to 

 have clean lakes and streams. The following statements identify specific 

 areas where intensified research is needed if we are to succeed in these 

 goals: 



1) Develop and utilize remote sensing so that water bodies can 

 be quickly trophic level. 



2) Develop methods to examine and manage lakes as part of an 

 entire watershed. 



3) Delineate the role of sediments as a source or sink of nutri- 

 ents, to facilitate predictions of impact on lake recovery 

 prior to initiating control or restorative practices. 



4) Evaluate the role of the thermocline as a barrier to the 

 transfer of chemical and biological material and possibilities 

 for beneficial manipulation. 



5) Understand the reasons for seasonal succession of algal types 

 and, in particular, the reasons for the appearance and domi- 

 nance of blue-green algae. 



6) Determine interactions between macrophyte and phytoplankton 

 populations and the effects on one when the other is mani- 

 pulated. 



7) Develop methods to control macrophytes to achieve a balance with 

 desirable uses of the lake. 



8) Develop and evaluate methods of aquatic ecosystem mangement 

 through biological manipulations so that the water body pro- 

 duces the most desirable product. 



9) Evaluate useful products derived from harvestable material 

 from water bodies. Such products would include soil condi- 

 tioners, pharmaceutical materials, animal feed, and energy 

 source. 



10) Develop techniques to predict the success of control or 

 management methods on lakes through mathematical modeling. 



11) Determine the socioeconomic aspects of cultural eutrophica- 

 tion and lake restoration including recreational impact, 

 effects on commercial fisheries, public health, and cost of 

 water treatment. 



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