Round Table 

 Discussions 



Informal round table discussions were held dealing 

 with several topic areas related to gas bubble 

 disease. The co-chairmen of each discussion were 

 asked to establish an agenda and lead the discus- 

 sion with goals of determining the current state of 

 knowledge and identifying research needs in the 

 subject area. A diagram of research areas (Fig. 1) 

 was presented as a basis for discussion. 



Participants were asked to select from four 

 topic areas: biological studies, physical and 

 engineering studies, analytical problems, and 

 water quality criteria. The biological studies were 

 subdivided into groups dealing with field and 

 laboratory oriented studies that were held concur- 

 rently as were sessions on analytical problems and 

 physical and engineering studies. 



The following summaries of each of the dis- 

 cussions were prepared from notes and tapes of 

 the sessions and we hope they accurately represent 

 a general concensus of the participants' opinions. 



RESEARCH NEEDS IN 

 DISSOLVED GAS STUDIES 



(MITIGATION) 



DAMS 



STEAM ELECTRIC 

 PLANTS 



THERMAL 

 EFFECTS 



SUB-LETHAL 

 LETHAL 



TOLERANCE 

 DATA 



BEHAVIOR 

 \ 



DEPTH 

 DISTRIBUTION 



INTERMITTENT 

 EXPOSURE 



GAS TRANSFER 

 RATE 



. NATURAL 



\ 



AIR ENTRAPMENT 



\ THERMAL 



INCREMENT 

 / 

 DISSOLVED 

 GAS REGIME 



\ 

 WATER QUALITY 

 MODEL 



FIELD- 

 DATA 



POPULATION EFFECT 



DISSOLVED GASES ANALYSIS 



ELECTROLYTIC 

 STANDARDIZATION 



GAS CHROMATOGRAPH 



SATUROMETER 



\ 



DISSOLVED GAS 

 ANALYSIS 



ENVIRONMENTAL 

 EFFECT 



WATER QUALITY 

 STANOARDS 



FIG. 1 Research areas in dissolved gas studies 



777 



