67 



CALCULATION OF THEORETICAL CAPACITY FOR COMMERCIAL FISHING ON THE CffiEEN RIVER 



Three approaches were used to calculate an estimated capacity for commercial 

 fishing service days on the Green River below Flaming Gorge Dam, until a study 

 is completed that will confirm the estimate or make revisions upward or 

 downward . 



The capacity is based on a 21^ day season. (April 1 to Oct. 31) when most of 

 the fishing occurs. It is also confined to Segment "A" of the Green River 

 corridor {from the Dam to Little Hole) where &0X of fishing use takes place. 



>fErHOD I; CAPACITY BASED ON ACTUAL I986 USE 



In 1986 23,288 anglers fished the river from the dam to Little Hole, during a 

 21^; day period. An assignment of 3% was used as an appropriate level of 

 commercial use. This is five times greater than the commercial use that 

 occurred prior to the change of fishing regulations on January 1, I985. 



23.280 X 5it = 1.165 service days 



METHOD II; CAPACITY BASED ON LIMITING THE NUMBER OF GUIDES OR BOATS ON THE 

 RIVER EACH DAY 



It is assumed that one boat per mile would be an acceptable level of commercial 

 use for the 7.2 miles of river in Segment "A". 



7 boats X 2 fishermen per boat X 214 days = 2,996 service days 



Eased on past experience in estimating use. it is further assumed that this 

 level of use would only occur on 60?i of the days in the 2l4 day period. 



2.996 service days X (>0% - 1,798 service days 



■VETHOD III: CAPACITY BASED ON THE PHYSICAL LIMITATION OF SPACE (WITH NO REGARD 

 TC RECREATION EXPERIENCE LEVELS ) 



7.2 miles of river X 5.200 ft. per mile = 38.OI6 feet of river 



Each fisherman was assigned 100 ft. of space 



(2 fishermen per boat or 200 ft. between each boat) 



5)1 of total fishing use was assigned as commercial use 



Assume that average actual use would be equal to 60% of full use 



on all days in the season. 



