CONTENTS 



Page 



Description of transportation and release of shad » = . . . . » » . . » 3 



Effect of hauling on survival . . . . , » <. U 



Recoveries of shad planted above the dams » .,,.... = ...,<, , 6 



Sampling for juvenile shad produced above dams <,,,.... c.<,» . 10 



Comparison of .recoveries of shad planted above dams with control lot. . 10 



Summary .o ,..<.„»., ,o .o, ... c ............ » 12 



Literature cited ...... <.o ............ ..^ ... . 13 



FIGURE 

 No, Page 



1 Lower part of the Susquehanna River . . . .- 2 



TABLES 

 No. Page 



1 Daily record of shad hauled from Perryville, Md., to Peach 

 Bottom, Pa. (Hauling distance, 2? miles. Temperature in 



degrees Fahrenheit.) ..... ................. . U 



2 Daily record of shad hauled from Perryville, Md,, to Columbia, 

 Pa. (Hauling distance, 58 miles. Temperature in degrees 

 Fahrenheit.) ........................... 5 



3 Total number of tags returned from shad planted above dams . „ „ , 7 



h Numbers of floodgates open on Conowingo and Safe Harbor Dams 

 during experiment. (Floodgates on Safe Harbor Dam are larger 

 than those on Conowingo Dam, Decimal denotes fraction that 

 one gate was open,) ,,,.,................,. 9 



