measured were salinity, dissolved oxygen content, temperature, sulfite waste 

 liquor (SWL) , Inorganic and total phosphate, nitrite, nitrate and ammonia, pH, 

 and alkalinity. The phytoplankton was evaluated by determination of photo- 

 synthetic rate through uptake of radioactive carbon, and determination of 

 the standing crop was made through chlorophyll extraction and microscopic 

 examination. In general, the methods used were those presented by Strickland 

 and Parsons (1965). SWL was measured by the method presented by Westley 

 (1960). Samples for determination of photosynthetlc rate were held in a 

 deck Incubator exposed to natural sunlight with appropriate neutral density 

 filters to compensate for water turbidity. Trips were planned to sample the 

 area of the harbor mouth at high tide and the upper harbor at low tide. In- 

 sofar as possible sampling was done against the direction of tidal flow. 

 Station 17 was intended to measure the ocean feed water. Station 2 was 

 Intended to measure the inflowing Chehalis River water. 



In Grays Harbor, Trip 8 was on August 18, 1964; Trip 9 on September 9, 

 1964; Trip 10 on July 21, 1965; Trip 11 on August 18, 1965; and Trip 12 on 

 September 21, 1965. In Willapa Bay, Trip 29 was on August 12, 1964; Trip 30 

 on September 2, 1964; Trip 38 on July 15, 1965: Trip 40 on August 25, 1965; 

 and Trip 41 on September 14. 1965. 



RESULTS 



The Grays Harbor station data were combined into five units represent- 

 ing five major sections of the bay (Figure 1). Data from all depths and all 

 stations in each section were averaged to provide one value in each section 

 for each property for each trip. Figure 2 presents the water temperature 

 data. Figure 3 presents the salinity data. Figure 4 presents the sulfite 

 waste liquor data. Figure 5 presents the dissolved oxygen data. Figure 6 

 presents the inorganic phosphate data. Figure 7 presents the total phosphate 

 information. Figure 8 the Secchl disc observations. Figure 9 chlorophyll A, 

 Figure 10 photosynthetlc rate, and Figure 11 presents calculations of photo- 

 S3rnthetic efficiency expressed as assimilation numbers (the aaouat of olioto- 

 synthesls per unit of chlorophyll A per 1,000 foot candlas (fC-c]). 



These data show that the lowest average oxygen values on mmeh trip 

 always occurred in Section II and the highest occurred at Section V (in the 

 mouth). The SWL values were highest in Section II and the lowest in Section V. 



