American Fisheries Society. 105 



those unripe females, because a very large proportion of them are 

 caught and killed. 



^Ir. Clark : I think experiments in penning wild fish show 

 tliat t)u^ success has been obtained only in the ease of cold water 

 fishes. Now with the pike perch I do not think there has ever 

 been any real successful penning, that is holding them any length 

 of time, and I do not think the Michigan Fish Commission ever 

 had any success along those lines. If you will experiment I think 

 you will find that in the ease of pretty nearly all the cold water 

 .•spawning fishes you can hold and collect their eggs, but with the 

 warm water fishes I think you will liave difficulty. 



Mr. Jones, of Erwin, Tenn. : I will say that I too stripped a 

 twenty pound bass and hatched the eggs successfully. As well as 

 ] remember we got something over a million of eggs. They came 

 into the station rather unexpectedly and we constructed an appa- 

 ratus for hatching them. We constructed a box similar to the 

 old Chester cod boxes, with the tidal motion; and in the .absence 

 >of suitable jars -we \ised the ten gallon aquaria at Havre de Grace. 

 We hatched the eggs and retained them at the station for about 

 a week after they were hatched, and transported them for a dis- 

 tance of about six miles above the station, in regiilar transporta- 

 tion cans. We were, I suppose, about an hour on the trip; and 

 they transported very nicely with no loss at all, so far as I could 

 «ee. 



Mr. Ravenel : I have been very much interested in Mr. 

 Worth's observations, and if his statements as to the s])awning 

 grounds are correct and verified by experience, he has solved a 

 Tery important prol)lem in fish culture. As Superintendent of 

 Battery Station from 1886 to 1891, and having direct charge of 

 the station for several years afterwards, I made everyeffort to col- 

 lect striped bass eggs in that vicinity where there was a most 

 "valuable fishery. I have seen 5,000 striped bass in one house in 

 Havre de Grace apparently nearly ri])e but only a few spawners 

 "were taken in that region, viz., liead waters of the Chesapeake 

 Bay during the period mentioned. Just after the shad season is 

 ■over the boats there catch tons daily ; we have never been able to 

 understand why it was tliat the ripe fish were not found, though 

 an occasional spawner was picked up at some of the fishing 

 ■.shores earlier in the season. The theoiy presented by Mr. Worth 



