110 FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Table 5. — Catch of chum salmon in the Columbia River, 1938 



Tables 1 to 5 give the aggregate Washington and Oregon catches for 1938, by spe- 

 cies, weeks, and zones. These figures include only those catches that were reported by 

 locality and date. There is a relatively small portion of the total catch that is reported 

 without these important data and these have been excluded from this analysis, although 

 for completeness they are given in table 6. The catch of chinook and silver salmon 

 made in the ocean outside the mouth of the river by troll fishermen was not given in 

 the original report by the board of consultants, but is included here. Occasionally 

 deliveries are reported during the spring season as of Sunday. Since the period from 

 6 p. m. Saturday to 6 p. m. Sunday is closed to fishing each week during the spring 

 season, such catches have been added to those of the preceding week. Catches made 

 on Saturday are not infrequently held over and delivered on Sunday, and it rarely 

 happens that catches are made after 6 p.m. on Sunday and delivered that same evening. 



The zones correspond to the Washington counties bordering the river, beginning 

 at the mouth. Zone 1 is that part of the river that is bounded on the north by Pacific 

 County, Zone 2 by Wahkiakum County, Zone 3 by Cowlitz County, Zone 4 by Clark 

 County, Zone 5 by Skamania County, and Zone 6 by Klickitat County. The catch 

 in Zone 5 has, on the advice of both the Washington and Oregon officials, been referred 

 wholly to the area below Bonneville Dam. This zone extends above Bonneville for 

 some distance, but for a part of tbis distance the river is closed to all fishing and the 

 catch in the remaining portion is so small as to be negligible, either when omitted from 

 the record of the catch above or added to the record of that below Bonneville. 



In this analysis we have necessarily omitted consideration of three elements in the 

 catch which are recognized as important but which cannot, with the data at hand, be 

 evaluated. These are: (1) The catch in the ocean by the troll fishery; (2) the hook- 

 and-line catch by sport fishermen; and (3) the catch made by Indians for their own use, 

 especially at Celilo Falls. 



The troll fishery is very important, and from southeastern Alaska to the mouth of 

 the Columbia it draws largely upon the supply of Columbia River chinooks — as demon- 

 strated by tagging experiments (Pritchard 1934, Fisheries Service Bulletin, Jan. 3, 



