596 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



In making estimates as to whether lake-culture will pay, the value of 

 the soil, which thereby is abstracted from another culture, has to be 

 taken into account ; while the restocking of depopulated brooks, rivers, 

 and lakes does not monopolize soil devoted to any other purposes. 



In 1824, the artificial impregnation and raising of salmon was suc- 

 cessfully carried out on the Horazdovic estate in Bohemia, but it was 

 not developed any further at the time, and was soon given up. 



Quite recently, fish-eggs have been artificially impregnated in the 

 neighborhood of Brauuau, on the estates of Mabec and Tachau, in 

 Glashiitten near Pribram, in Opocno, in Hammer near Beichor, in 

 Krumau, in. Nedosim near Leitomischl, and in Frauenberg. Further 

 successful experiments in brooks and lakes were made with salmon-eggs, 

 which mostly came from Salzburg. The most successful experiments 

 were those made by Mr. Yacek^ of Nedosin, whose brook, in consequence 

 of culture and protection, produced a constant increase of fish, 62J 

 pounds of trout in 1865, and 250 pounds in 1870. The amonnt of 

 trout in the lower portion of the brook, where there was no protection 

 and culture, was likewise increased to about 500 pouuds, the trout from 

 the upper portion being carried down especially in consequence of high 

 water in spring ; while the fish-thieves of that neighborhood did a still 

 more flourishing business. In consequence of the 37,000 trout-eggs placed 

 there by Mr. Vacek, the number of fish has considerably increased in 

 every portion of this brook. In 1871, the salmon-breeding establishment 

 founded by Dr. Fric at Herrenskretschen, near the Saxon boundary -line, 

 commenced to place young fish in the Kamnitz, a small tributary of the 

 Elbe. Preparations have been made to found another on a larger scale. 



The fishing-waters of Moravia were formerly counted among the 

 richest of the Austrian monarchy. Of late years, the fisheries have been 

 almost totally destroyed, as in other places, by the want of any legal 

 protection, and especially by the poisoning of the streams by the refuse 

 from factories. The statistics which were published in the report 

 of the Moravian and Silesian Agricultural Society for 1871 show, in 

 spite of the deplorable condition of the fisheries, the beginnings of 

 improvement. There are small piscicultural establishments in several 

 places, as in Wisowitz, on the estates of Baron de Stillfried, whither, 

 in 18G8, 20,000 eggs of the trout, the Salmo salvclinus, the salmon-trout, 

 and the salmon were brought from Salzburg. After the eggs had been 

 successfully hatched, the young fish were placed in a mountain-stream, 

 and in small lakes made specially for this purpose, where the trout are 

 flourishing, while the salmon-trout and the salmon grow but slowly, 

 most likely because the water is not sufficiently deep. 



In Moravia, as in other countries, it is proposed to prohibit fishing, 

 at least with nets, entirely, for at least three years. 



In Silesia, Mr. Ernst Giebner, of Bielitz, has a very successful hatch- 

 ing-establishment. 



In Galicia, there is one at Dublany, and another was founded in 1867 



