428 Biology in America 



a scow can properly be said to possess such an appendage, 

 and can be taken from point to point, at the will of the fish- 

 erman. And if any luckless fish chance to pass all of these 

 devices for his destruction, he must yet run the gauntlet of 

 the Indian waiting with his spear upon some platform in 

 the river, or following his finny prey in swift canoe. 



But the wiles of man are not the only danger which the 

 salmon must overcome in his struggle for existence. There 

 is the danger of the fungus which takes such a heavy toll of 

 the eggs, and there is many a lurking enemy of the finny 



SEINING SPAWNING SALMON FOR AN ALASKAN HATCHERY 

 Courtesy of the U. S. Bureau of Fisheries. 



tribe to whom a meal of young salmon or of salmon spawn 

 does not come amiss. Many an enemy too is there in feathers 

 and in fur, waiting by the salmon streams for their share of 

 the fishing, among which are the gulls and bears, while the 

 seal is not averse to a meal of salmon ; and many a smaller 

 member of the furry tribe skulks by the streams to prey upon 

 the harried fish. 



From the data of the canning industry between 1866 and 

 1915, published in a recent report of the Bureau of Fisheries, 

 there appears to have been no material decrease in the number 

 of cans of salmon packed on the Pacific Coast during that 

 period. Indeed there has been on the contrary a consistent 



