REPORT OF COMMISSIONER OF FISH AND FISHERIES. 83 



of 1891. Other specimeus vseut consisted of 9 wild adult brook trout, 

 4 wild adult salmon, and a small collection of smelt from Green Lake. 

 The only tish liberated, and these by accident, consisted of 500 of the 

 younger salmon, which escaped into Green Lake November IG through 

 the misplacement of a screen. On December 14 there were 19 small 

 German carp sent to the station by Dr. W. M. Haines, of Ellsworth, 

 and liberated in Great Brook, tributary to Green Lake. 



Landlocked salmon. — The salmon of Green Lake, averaging' 6 pounds 

 in weight, ordinarily spawn in the inflowing streams, but some pass 

 through the outlet and lay their eggs below in the waters of Keed 

 Branch, as was this year definitely proved. When the spawning period 

 arrives during the seasons of drought, the affluents being low, the fish 

 will not pass np, but remain in the lake. To induce them to ascend 

 Great Brook at such times it is necessary to resort to artificial flushing, 

 and there being facilities on the headwaters for accomplishing this, 

 success has been attained. Mountainy, the uppermost pond, 5 miles 

 distant, is used as the flushing reservoir, the system pursued consisting 

 in opening gates about 2 p. m., creating a large flow throughout the night. 

 The rainfall in September and October having been slight, there was by 

 November 1 barely sufficient water for this purpose and the station 

 proper. Great Brook was the only affluent affording adult fish, though 

 in October many were seen jumping near the mouths of other inlets. 



Egg collections being wholly dependent on wild fish, arrangements 

 for capture were effected in September, at which time the slat traps 

 in Great Brook were repaired, another obstruction being put in position 

 at the discharge of Mann Brook. Two others were located at the lower 

 end of the lake, one just inside, for the capture of outward-moving fish, 

 and the other in Eeed Brook, about a mile below, for the capture of fish 

 ascending. Wire screens were, in November, placed in the gateways at 

 the discharge of the lake to prevent fish escaping. Before the screens 

 were inserted as many as 100 young salmon from G to 10 inches long 

 were at one time seen below the dam. 



The aggregate catch was 152, Great Brook furnishing 83 and the lake 

 outlet trap 69. Of the captures at Great Brook trap, 53 were females; 

 of those from the outlet of the lake, the female^s numbered 26, One 

 salmon bearing "No. 2" tag, attached in 1890, was taken. The first 

 capture, on September 27, consisted of two males and three females. 

 On October 31 the first eggs of the season, 12,000 in number, were 

 obtained. The largest success at the outlet of the lake was Novendier 

 4, when 14 fish were taken, 8 of the 9 females affording 22,000 eggs of 

 good quality. The most successful day was November 9, when 31,500 

 eggs were taken from fish held in the Great Brook traps. The last eggs 

 were taken November 23, and the next day all parent fish were set free 

 in the lake, the total of eggs for the season being 213,300. An inspection 

 of the stream feeding Mountainy Pond was made in October, and also 

 that connecting Mountainy and Rocky ponds in November, to determine 

 the presence of available spawners, but no indications were found. 



