REPORT OF COMMISSIONER OF FISH AND FISHERIES. 37 



The tiugeiliug fi.sli derived from the ponds comprised 810 black bass, 

 4,427 rock bass, 0,931 car]>, and 1,011 goldftsli. A cousiniimeut of 75 

 adult black-spotted trout was received June 9, 1890, from the Lead\'ille 

 Station. Owing to injuries received in transit, only twenty of theui 

 survived the heat of the first summer, but these were in good condition 

 July 1, 1891. A shipment of 5,000 eggs of this species arriving July 

 29, 1890, from the same station, hatched immediately, about one-half of 

 the fry dying during the first week. The remainder were further re- 

 duced in numbers by the escape of some from the ponds, but several 

 hundred were preserved in good condition. 



There was the usual lack of success with brook trout. Twenty thou- 

 sand eggs arriving from the Xorthville Station January 18, 1891, imme- 

 diately hatched; 7,000 fry died in the troughs by March 1, and the 

 remainder soon after perished in the ponds. 



Unfavorable results also attended the handling of Von Belir trout 

 eggs and fry. Of a consignment of 20,000 eggs from the North ville 

 Station, received February 2, 1891, many were found either hatched or 

 dead on arrival. A second consignment of 20,000 arrived in good con- 

 dition February 20, 1891, but they underwent 20 x)er cent loss in hatch- 

 ing, and the fry perished, though apparently healthy — a portion in the 

 troughs and the remainder in the ijonds subsequent to transfer, April 9. 

 Muddy water during the hatching season and the presence of lime in 

 the station water supply are supposed to have been the obstacles to 

 successful operations with this species and the brook trout. 



Sandusky Statiox, Ohio (Hrnky r)(juGLAS, Superintendent). 



1889-90. 



The agreement with the Ohio State Fish Commission, under which 

 the operation of its hatchery at Sandusky was conducted by this Oom- 

 missicm, was renewed. 



Eggs of the whitefish and pike perch were obtained from islands in the 

 western part of Lake Erie, and from Port Clinton and Toledo. Those 

 of the whitefish were collected during the month of November, 1889, to 

 the number of 02,100,000. Of these, 10,000,000 were shipped to the 

 Pennsylvania hatchery at Erie ; 0,000,000 to the Wisconsin State fish 

 commissioners; and 0,000,000 to Central Station, Washington, 1). C. 

 The remainder were hatched at the station, producing 30,028,000, all of 

 which were lil)erated in Lake Erie except 100,000, sent to Warren, 

 Ind., at the request of the Indiana State Fish (-ommission. 



Pike-perch operations covered the period between April 12 and 20, 

 1890, during which 81,000,000 eggs were obtained. Of these the 1 Penn- 

 sylvania hatchery at Erie was given a consignment of 18,000,000 and the 

 New York Fish Commission 1,(K)0,000. From the remainder, 30,200,000 

 fiy were produced and liberated the first week in May. 



