The type of fyke net used was rectangular in shape „ It consisted of 

 l/It-inch bar mesh cotton webbing, hOO meshes deep, shaped to steel frames, 

 the largest of wliich formed an 8-square-foot opening. The net tapered 

 from the large opening to a point, and was tied off behind the fyke to form 

 a bag in which the catch accumulated, 



T|ie hours fished each year, the total catch, the catch per hour, and 

 and peak month of migration at Deer Creek Station during the years 19h2 

 through I9U8 are shown in table U. 



Table ko =— Fyke=netting data. Deer Creek, 19ii2-i;8 



Tear 



Hours fished Total catch Catch per hour 



Peak month 



I9U2 

 19U3 

 19hh 

 19U5 

 I9U6 

 19U7 

 I9I48 



Total 



3,519 

 1,657 

 3,978 

 3,806 

 2,U63 

 2,086 

 1,653 



3h6 



99 



1,590 



2,U98 



585 



273 



935 



.098 

 0O60 

 .Uoo 

 .656 

 .238 

 .131 

 .566 



March 

 March 

 April 

 March 

 April 

 March 

 March 



19,162 



5,626 



.307 (av.) 



A fyke net similar to the one used at Deer Creek Station was fished 

 on Deer Creek at Polk Springs during the spring of I9U6, At that loca- 

 tion the peak month was March, and 1,1^82 finger lings were captured in 

 I9U0 hours of fishing effort, or at a rate of 0.76ii fish per hour. This 

 is a higher rate of catch than any made at Deer Creek Station, approxi- 

 mately 30 miles farther downstream. At Polk Springs the peak catch 

 occurred in early March, while at Deer Creek Station the peak was in 

 April. The greater catch rate at Polk Springs may indicate a high 

 mortality of young salmon, probably due to natural causes and to the 

 iri'igation diversion located between the two points. 



It is interesting to note that there appears to be some correlation 

 between the abundance of adult salmon moving upstream and the number of 

 young saLmon caught per hoin- of fishing effort on the crop produced by 

 that spawning population. The comparison is given in Table 5, after the 

 niiTibers involved have been reduced to comparable percentages. In this 

 table, for purposes of easier comparison, the seaward migrant catch data 

 are given on the same line as the niombers of adult fish, although 

 actually the young from these adults are present in the stream in the early 

 spring of the following year. 



