BULLETIN OF THE UNITED STATES PISH COMMISSION. 261 



»« — DISTRIBUTION OF * til KM \ "S FISH AIVI> PISH-EGGS BY THE 

 4JFKITIAIV B ISIB10KV ASSOCIATION. 



By MAX VON DEItl ISOKNE. 



Canadian oysters.— In Circulars 2, 1883, and 3, 1884, it is stated 

 that hopes were entertained of successfully transplanting Canadian oys- 

 ters to the Western Baltic. The necessary condition was to take the 

 oysters from latitudes whose temperature all theyear round corresponded 

 to that of the Western Baltic, and from waters whose saltness was as 

 nearly as possible the same as that of the Baltic. We are now glad to 

 state that, thanks to the exceedingly careful arrangements made by 

 Messrs. Eumpff and Mobius, the experiment of transporting these oys- 

 ters across the ocean has proved a great success. The first telegram 

 from these gentlemen, dated November 7, 1884, reads-as follows : "Oys- 

 ters arrived in excellent condition ; upwards of 13,000 live oysters planted 

 in the Baltic, during the most favorable weather." 



The telegram was followed by a short letter from Prof. Karl Mobius, 

 bi which he promises a full report for our next circular, and states the 

 following: "Messrs. Rumpff and Mobius, on the morning of Novem- 

 ber G, left Hadersleben [in Sleswick-Holstein] with the 17 barrels of 

 oysters, and conveyed them to Aaroesund, on the Little Belt. There 

 they were placed on board the revenue-cutter, on which there were sev- 

 eral experienced fishermen, and a-fter a short while suitable places for 

 planting the oysters had been found. When the barrels were opened 

 nearly all the oysters were firmly closed (and therefore alive), and only 

 on the top were a.few dead oysters found. The flavor of the oysters 

 Mas as fresh and good as if they had left their Canadian. banks only a 

 few days ago. We have carefully marked the places where the oysters 

 were planted, so that they can easily be found." 



California salmon. — The American fishculturist Marshall McDon- 

 ald reports that it has been found impossible to acclimatize the Cali- 

 fornia salmon in the rivers flowing into the Atlantic and in the tribu- 

 taries of the Mississippi, but that in consequence of artifical fish culture 

 the Sacramento River yielded twice as many salmon as formerly, and 

 that the annual product of these fisheries had been increased $300,000. 

 The cause of this seems to be that the water of the Western rivers is 

 colder and that of the Eastern and Southern rivers warmer than that 

 of the sea. In France the acclimatization of this fish seems to have 

 been successful in the river Aude, near Narbonne, as the fish return 

 to this river from the Mediterranean. 



Mr. von Kalkreuth, of Obragorzig (province of Posen, Prussia), 

 caught a California salmon weighing 5 pounds in the Kurzig Lake. 



*Froin Circular No. 6, 1864, of the Deutsche Fischerei-Verein, Berlin, November 18, 

 1884. Translated from the German by HERMAN JACOBSON. 



