names; they are retained without change because 

 of local usage. Many minor streams have no names; 

 hence they are identified only by number. 



Streom number. --This number appears on 

 the right side of the first line of the heading. The 

 letter preceding the number designates the adminis- 

 trative district in Southeastern Alaska: e. g. , "WR" 

 for Wrong ell. Continuity of stream numbers along 

 a shoreline is followed where practical. Because of 

 the numerous islands, breaks in the sequence have 

 been necessary. Nonhyphenated numbers designate 

 major or important streams. A catalog number 

 which includes a hyphenated number designates a 

 tributary to the stream of the same number. A 

 catalog number combining numbers and letters 

 designates a minor stream, either adjacent to or 

 between major streams numbered in sequence. For 

 example, stream number 76A is a minor stream 

 adjacent to major stream number 76. 



ADF Statistical number. --A space for the 

 new ADF Statistical number is provided for use when 

 the new numbers are assigned. 



Latitude ond longitude . --TTiis appears on 

 the second line, left side, of the heading. Location 

 of streams is given by the use of "N" for north lat- 

 itude, and "W" for west longitude, stated in de- 

 grees (° ), and minutes and tenths of minutes ('). 

 Location of the high tide point on the stream is 

 given for positive identification. 



Previous number. --This appears on the 

 second line, right side, of the heading. Stream 

 number or numbers used in the past by Fish and 

 Wildlife Service are given for positive identifi- 

 cation of old stream records. 



Geographic location. --This appears on 

 the third line of the heading. Each stream location 

 is described by the administrative district, major 

 channel, bay or inlet, arm or cove, and location 

 within the smallest division given by direction 

 (from true north) and distance (nautical miles) 



Major species. --Included are those 

 species of salmon which furnish the bulk of spawn- 

 ing in the stream. Where more than one dominates, 

 both (or more) are included. 



Other species. --This indicates other known 

 species of salmon and trout using the stream. 



Escapement timing . --The timing is based 

 on systematic stream survey records, which include 



a number of years of surveys with visits before, near, 

 and after the peaks of abundance. Extensive stream 

 temperature studies were made on most of these 

 surveys. The earliest runs of salmon occur along 

 the colder mainland streams. The latest 

 runs are in the outer charuiel and coastal areas 

 where stream levels are dependent upon rain- 

 fall. An intermediate timing of the runs occurs in 

 the region lying between the mainland and outer 

 coastal areas. Three major time divisions are used 

 to indicate the peak period that the major species 

 are found in the stream. "Early" designates peaks 

 before August 15; "middle, " peaks between August 

 15 and September 15; "late, " peaks after September 

 15. The range of time in which the major species 

 are found in the streams is given by months. 



Escapement magnitude . --These are esti- 

 mates of the total escapement, based on stream 

 counts of the peak abundance of salmon, multiplied 

 by a certain factor. This factor was determined from 

 stream tagging experiments at Herman Creek in 

 1953 by the Fisheries Research Institute, who found 

 the total escapement was between two and three 

 times the peak count. The range of the escape- 

 ment magnitude is given in thousands. 



Spawning facilities. --This includes a gen- 

 eral classification rating of poor, fair, good, excel- 

 lent , etc. The rating is based on estimates made by 

 various individuals. 



Stream temperatures. --In this classification 

 the following general ronges are used for each stream. 

 Each range is for the 3 -month period (July, August, 

 and September) in which most of the salmon spawning 

 migrations occur: 



Cold-range, averaging less than 50° F. , 

 usually an early-run stream. 



Normal-range, averaging between 50° and 

 55° F. , usually a middle -run stream. 



Warm-range, averaging over 55° F. , usually 

 a late -run stream. 



These ranges generally correspond to the 

 geographic location of the stream and times of the 

 runs. Where only limited temperature information 

 is available for a stream, the range has been 

 estimated from its location and timing of run. 

 Cold-range streams are usually found along the 

 mainland or on the larger islands in the northern part 

 of Southeastern Alaska. Warm-range streams are usu- 

 ally found along the outer channels and coastal 



