mon averaged only about 2^ pounds, the eggs were 26/100 of an 

 inch in diameter. 



Our experiences of over twenty years with these fish has brought 

 to hght many interesting facts about their growth, feeding habits, 

 reproduction, and migatory movements. The Tuxedo hatchery is 

 supplied with water from Tuxedo Lake ; therefore the growth of 

 our fish during the early spring, fall and winter is necessarily much 

 less rapid than at hatcheries using spring water. The development 

 of the eggs is also very much retarded, those taken about the first 

 of November not hatching until the latter part of February. The 

 food sac of the fry is usually absorbed in about eight weeks; the 

 salmon average only about three inches at one year old, and from 

 six to nine inches at two years. Under these conditions, the records 

 show that only 10 per cent reach the reproductive age in their fifth 

 year, or at the actual age of four years and eight months from 

 hatching. Under natural conditions, it is believed that this is the 

 average age at which landlocked salmon reach sexual maturity. 

 Approximately 95 per cent of these fish spawn only once in two 

 years. Occasionally a fish will spawn two years in succession and 

 then skip a year ; but with the domesticated fish at least, this salmon 

 must be regarded as a biennial spawner. 



One of the greatest difficulties we have experienced in the culti- 

 vation of landlocked salmon breeders, has been the heavy loss of 

 ripe males from fungus. We have tried every conceivable method 

 of both prevention and cure without any great degree of success. 

 Several weeks prior to the spawning season, the pool containing the 

 breeders is drawn down and those fish showing signs of ripening 

 are taken out and the sexes separated. The fish are handled with 

 extreme care, being dipped out with and held in soft, rubber-lined 

 tubs while they are looked over. It does not seem to make any 

 diflference whether they are handled or not, a large percentage of 

 them develop fungus so badly that we can seldom save more than 

 50 per cent of the males that ripen. We have tried leaving all the 

 males that we think we shall not need, in the large breeding pool 

 where they are held throughout the year; but even there where they 

 have plenty of room and no reason for injuring themselves, many of 

 them become covered with fungus and have to be thrown away. We 

 have tried dipping them in salt and other fungicide solutions every 

 day, varying the strength of the solutions with different individuals ; 

 in fact we have tried every method of prevention and cure known 

 to fish culturists to combat this trouble, without any appreciable 

 results. 



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