BULLETIN OV THE UNITED STATES PISH COMMISSION. 119 



pound. Tlic rijiidly enforced close season of the salmon rivers, the pro- 

 hibition of fixed instrnmeuts of capture at the river mouths, as well as 

 the protection of the young- salmon and the spawning- places in connec- 

 tion with the vigorous employment of artificial salmon culture are gen- 

 erally regarded as the most important causes of the improvement in the 

 salmon fishery. 



North America. — In the report of the Commissioner of Fisheries for 

 1879 (published in Washington in 1882), page G98, Livingston Stone 

 makes the statement that since artificial fisli-culture has been carried on 

 in California the salmon have increased immensely in the Sacramento, 

 so much so that, although the canneries have increased and the sea-lions 

 and the fishermen also, the salmon have nevertheless made a steady 

 gain in numbers, or, in other words, the fishery commission has, with the 

 aid of artificial hatching, beaten the sea-lions, the canneries, and the 

 fishermen combined. 



SUCCESS OF THE CULTUKE OF BROOK TROUT.* 



The Danube. — The Fishery Union of Waldmiinchen has since 1879 

 yearly deposited several thousand trout fry in the brooks tributary to 

 the Eegen. In consequence the catch of trout has considerably in- 

 creased. 



The liHiNE. — Every fishery lessee is required to turn out yearly in 

 the leased waters 100 trout fry for every cubic meter of water supply, 

 and the trout-fishing is thereby remarkably improved. 



Wiirzhurg. — The ''Fish Brook " was fishless; it was stocked with .1,000 

 trout fry per year for three years past, and now it swarms with fish, of 

 which the largest weigh a pound. 



Bibclhausen near Saarhurg. — The mountain brooks flowing into the 

 Lower Mosel are now well stocked with game fish, and fishing is very 

 remunerative. -v 



Birl-enjicld. — Since 1878, 5,000 young trout have been yearly turned 

 out in the Trauu Brook Valley. Now trout occur there in plenty; even 

 in the vicinity where formerly trout belonged to the rarities, edible 

 trout are now again caught. The net result of artificial fish culture is 

 here gratifying-. 



Montabaur. — The Gelb Brook yields notably more eatable trout since 

 it has been regularly stocked with trout fry. 



Deutz, on the Sieg. — Franz Goebel turned out trout fry below Deutz 

 eight years since. The fish ascend at high water as far as Deutz, and 

 many trout now occur there, as was not the case before. 



Barmen. — Burdet Chevalier stocked the brooks that he had bought 

 and rented with trout fry, and now has far more edible trout in them 

 than before. 



* Each item in the following paragraphs, relative, to brook trout, sea tront, char, 

 grayling, whitefish, carp, and eels, id accompanied by a reference to individual au- 

 thority for the statement. Tbe names being mostly unknown to American readers, 

 they are omitted by the translator. 



