2A6 



ERNEST 0. SALO 

 the estuary. 



3. To determine the density and distribu- 

 tion of pelagic and deraersal fishes in the estuary and 

 near-shore marine environments affected by industrial 

 waste discharge. 



4. To record some of the parameters of the 

 water quality in the estuary and compare them to the known 

 environmental requirements of salmon and other fishes of 

 economic importance. 



On some of these objectives I feel we have 

 succeeded and in some of these objectives I know we have a 

 ways to go. 



Data provided by four telemetry stations 

 maintained and operated by METRO and the U. S. Geological 

 Survey are being processed by the Fisheries Research Insti- 

 tute for use in mathematical models. Water temperature, 

 DO, pH, conductivity, and incident solar radiation are 

 measured hourly by these stations and recorded on paper 

 tape. Computer techniques are used to screen out the data 

 and estimate missing observations. 



These data are then analyzed by time series 

 techniques to describe mathematically tidal, diel, and 

 seasonal cycles of water quality, the influence of factors 

 of concern on water quality, and the time lag between the 



