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J. E. LASATER 



waste discharges and a rapid return to toxic conditions 

 within a matter of days of resumption of waste discharging. 

 This large-scale experiment conducted in the areas of 

 actual concern clearly demonstrates the ability of the 

 oyster larva bioassay to measure water quality. 



In addition to fully endorsing the oyster 

 larva bioassay 's use to measure water quality with regard 

 to raolluscan shellfish, we further note that areas which 

 support oyster populations generally also support sub- 

 stantial populations of other fish and shellfish. There- 

 fore, we are reasonably confident that waters in which 

 oysters and their larvae survive are waters that will 

 support other commercial fisheries. 



Thank you very much. 



CHAIRMAN STEIN: Th.Tnk you, Mr. Lasater. 



Are there any comments or questions? 



If not I have a question. Maybe you are 

 at the wrong place in the record, but you base a good 

 portion of your statement on the argument that oyster 

 larvae are unacceptable as bioassay animals. I have 

 heard no allegation to that effect. Who makes it? 



MR. LASATER: I am very pleased that you 

 haven't. We have heard-- 



25 CHAIRMAN STEIN: Well, wc? haven't had it 



