522 



U. S. BUREAU OF FISHERIES 



Mussel-shell industry of the Lake fisheries, 1929 — Continued 

 CATCH— Continued 



BUTTON BLANK MANUFACTURING » 



' These data also included in the manufacturing table of "Industries related to the fisheries of the Lakes 

 Section." 



FISHERIES OF THE MISSISSIPPI RIVER AND TRIBUTARIES 



The latest statistical canvass made of the fisheries and fishery 

 industries of the Mississippi River and tributaries was for the calendar 

 year 1922. The complete statistics for the canvass were published 

 in the report of the division of fishery industries for 1923 and in Sta- 

 tistical Bulletin No. 607. During 1922 the fisheries and fishery indus- 

 tries of this region employed 19,122 persons, and the yield of the 

 fisheries amounted to 105,733,734 pounds, valued at $4,503,521. 



Of the total catch in 1922 by far the most important product was 

 fresh- water mussel shells which alone amounted to 51,768,173 pounds, 

 valued at $1,050,592. This represents 49 per cent of the total weight 

 and 23 per cent of the total value of the catch. A survey of the fresh- 

 water mussel-shell fishery for 1929 shows a production of 46,937,479 

 pounds, valued at $996,137, for the Mississippi River and tributaries. 



