by FRI and the Alaska Department of 

 Fish and Game. 



Each entry in these forms is 

 explained as follo\rs: 



MAPS 



Five maps are presented in this 

 catalog. The first, figjure 1, is a 

 map of the Nushagak District, Bristol 

 Bay, Alaska, shov7ing the relation of 

 the V7ood River lake system to the 

 other river systems of the district. 

 Figures 2-5 are maps of the indivi- 

 dual lakes of the Vfood River lake 

 system. Each map shoves the number 

 and name of streams for the lalce or 

 lakes shovm. Some very small creeks 

 are sho^m on the maps that are not 

 listed in the catalog. 



FISH AGE DESIGNATION 



The decimal system for age 

 designation is used in this catalog. 

 For example, a fish of age 1.2 has 

 completed one winter in fresh water 

 and two winters in the ocean. In 

 other words, the number to the left 

 of the decimal indicates the number 

 of winters spent in fresh water and 

 that to the right of the decimal, the 

 winters spent in the ocean. 



EXPLAMTION OF CATALOG FORMAT 



The data for each river or creek 

 in this catalog are presented on two 

 forms. The first form lists (l) 

 "Descriptive Form," which gives the 

 stream locations; (2) "Physical De- 

 scription," vfhich gives the dimen- 

 sions of the stream, bottom, and water 

 conditions, etc.; (3) "Red Salmon 

 Runs," which gives the magnitude, 

 timing, and distribution of red salm- 

 on spammers in the stream; and (U) 

 "General Information," which includes 

 miscellaneous information associated 

 ■vri. th the stream. The second form is 

 a "Summary of Surveys," which lists, 

 year by year, an estimate of the 

 total red salmon population in the 

 stream and individual survey counts. 



Descriptive Form 



Name and numbers . — The name of 

 the stream is placed at the top of 

 each page. It is followed, in paren- 

 theses, by "trurJc stream" or "connect- 

 ing stream," if it is one. or by the 

 name of a lake into which the stream 

 flov;s. To the top left is given a 

 stream number, which consists of a 

 letter and a number. The letter is 

 the first initial of the lake into 

 which the stream flows. The number 

 indicates the distance in miles and 

 tenths of a mile measured in a clock- 

 wise direction from the outlet of the 

 lake to the stream mouth. For example, 

 stream A k.3 is for Big V/liitefish 

 Creek of Lake Aleknagik; it is k.3 

 miles by shoreline from the outlet of 

 the lake in a cloclad-se direction. In 

 the case of a trunk stream or a con- 

 necting stream, the letter represents 

 the lake from which the stream origi- 

 nates, and the number i-n.ll always be 

 0.0. For example, A 0.0 represents 

 Wood River, the trunli stream originat- 

 ing from Lake Aleknagik; N 0.0 repre- 

 sents Agulowak River, a connecting 

 stream originating from Lake Nerka. 



Location . — Measured at the creek 

 mouth in degrees, minutes, and seconds 

 of latitude north and longitude west. 



Previous names or numbers . — VJhen- 

 ever there is a previous name or 

 number for a creek, it is listed here 

 for easy reference to earlier records. 



U.S.G.S. map . — The name, scale, 

 and date of the map used to determine 

 the location of the stream. 



Physical Description 



Total length. — Determined with 

 the aid of c chartometer from maps. 



