FISHERIES OF ALASKA, 1908. 51 



species were in numbers fewer than the humpback. Note was made 

 of about 16 king sahnon, though there were probably more than this. 

 The first king entered the trap on July 23. A few coho and dog sal- 

 mon occurred toward the end of the season, the latter usually in 

 spawning coloration. 



The Dolly Varden trout (so-called " salmon trout ") was insome num- 

 bers, but the distinct run that was expected from the sea accompa- 

 nying the salmon to the spawning grounds did not materialize. On 

 July 5, 19 were caught with hook and line from among the salmon 

 in the trap. They ranged from 2 to 6 J pounds in weight. Wlien sea 

 run they were usually in good condition, but those with the late col- 

 oration, as most of them were, were more or less diseased and most 

 of them had a distinct emaciation, presumably as a result of the dis- 

 ease. The viscera were largely involved with parasitic cysts, singly 

 and in masses. 



A few of the trout were probably counted with the salmon. The 

 total individvials of all species other than red salmon included in the 

 count is insignificant. 



Salmon marked hy giU-net twine. — As the salmon passed through the 

 gate or the tunnels it was easy not only to recognize those showing 

 the abrasions made by the meshes of the gill nets fi-om which they had 

 escaped, but to count the number so marked and those which had 

 not encountered gill nets, or at least had not been scarred hj them. 

 While one observer tallied with the register all the salmon passing, the 

 other counted through the water glass all those showing plainly the 

 characteristic white streaks about the body between the head and 

 dorsal fin. Both counts were, of course, made for exactly the same 

 period. Only those on which the marks were unmistakable were 

 counted as twine-marked. Many salmon struggle through the nets 

 without acquiring scars, or scars heavy enough to be recognized with 

 certainty under the conditions of observations v/ith the fish passing for 

 a few seconds or less in view. The per cent of the total run that has 

 been entangled in the nets and escaped is therefore certainly greater than 

 shown by these counts. On July 3 Mr. Wallich, from an inspection 

 (not a count) of salmon in the trap, concluded that about 1 in 10 were 

 twine-marked. From actual counts on July 7, 60 out of 270, or 22 

 per cent, were marked; on July 8, 60 out of 235, or 25 per cent; on 

 July 13, 10 out of 130, or 7.7 per cent; on July 17,32 out of 212, or 

 15 per cent. Thus when the run is light the percentage of twine- 

 marked fish is high, and when the run is heavy it is low. The counts 

 of July 7 and 8 represent fishing before July 1 in the bay or before 

 the run had struck in; those of July 13 and 17 correspond mth the 

 heavy run in the bay. 



Young salmon. — On June 12 the redfish fry of the current season's 

 hatching were found in force frequenting the fine gravel beach extend- 

 ing along the mouth of the west shore of the main mlet. They were 



