go Effect on winter and summer flounders of sediment redistribution 



caused by those barriers© 

 ho Effect on winter and summer flounders of temperature changes 



caused by those barriers o 

 io Effect on movements of summer and winter flounders of Sill con- 

 struction in those barriers o 

 jo Effect on summer flounders of salinity changes caused by those 



barriers o 

 ko Effect on bottom organisms of changing conditions caused by 



those barriers o 

 Recommendations for structural changes in the lower Bay barriers 

 might be made to the Corps of Engineers from time to time during the 

 planning and construction period following formulation of a weU founded 

 opinion by the Fish and Wildlife Service on any or a group of the 

 above effects o 



2o That the ciu^rent inventory studies be extended to secure the impor- 

 tant second consecutive year of data on the fisheries of Narragansett 

 Bayo This inventory would include a continuation of the quahog and 

 sport fishing surveys which were undertaken this year® The inventory 

 should include a study to indicate production of the Bay above the 

 barrier sites o 



3o That existing studies be augmented to secure the best estimates 

 of the tolerances of the more important finfish and shellfish to changes 

 in salinity^ temperature, oxygen, pollution, currents, and siltingo 

 Such studies should begin with the presentation of detailed plans, 

 time estimates, cost estimates and completion dates by fishery per- 



G-28 



