1048 U. S. BUREAU OF FISHERIES 



Operating units and catch of Lake Keokuk for various years, 1914 to 1929 



• Lines are omitted in 1914, 1917, 1922, and ]9?7 honause data on the number were not available. 

 MISSISSIPPI RIVER BETWEEN LAKE PEPIN AND LAKE KEOKUK 



Statistics of the fisheries of the Mississippi River between Lakes 

 Pepin and Keokuk were obtained for the year 1929 for the first 

 time since they were collected as a part of the complete survey of 

 the Mississippi River and tributaries for 1922. This survey has 

 been made, as were those for Lakes Pepin and Keokuk, primarily to 

 determine the biological and economic effects on the fisheries of this 

 section following the construction of the Keokuk Dam; also, to fore- 

 cast the probable effects of any subsequently constructed dams in 

 this region. 



Considered according to the value of the catch, German carp was 

 the most important fish taken, accounting for 50 per cent of the catch 

 and 36 per cent of the value of the catch. Buffalofish accounted for 

 22 per cent of the catch and 25 per cent of the value, and catfish and 

 bullheads accounted for 10 per cent of the catch and 25 per cent of 

 the value. 



OPERATING UNITS BY GEAR 



The catch of fishery products in the Mississippi River between 

 Lakes Pepin and Keokuk was taken by 395 regular fishermen, 280 

 casual fishermen, 294 motor boats, 316 other small boats, 219 haul 

 seines having a combined length of 39,500 yards, 55 gill nets having 

 a length of 7,168 yards, 127 fines, 80 fish traps, 3,648 fyke nets, 2 dip 

 nets, and 524 baskets. 



