RESULTS 



Hydrography 



In our study of western LIS, temperature showed little variation 

 between stations measured on the same date, though large seasonal 

 changes were evident (Figs, 9-17). Average surface temperatures rose 

 from 5.5°C in mid-April to 22.1 in early August. Average bottom 

 temperatures ranged from 4.7 on the April cruise to 21.2 at the end 

 of August. Dissolved oxygen was also fairly uniform between stations 

 measured on the same date, except for low values in Station 1 surface 

 waters throughout the sampling period. Dissolved oxygen decreased 

 from high spring averages (10-13 ppm) to 4.0 and 1.9 ppm in surface 

 and bottom waters respectively, by early August (Figs. 7-19). 



Salinity rose slightly at stations taken moving east from the 

 Throgs Neck Bridge, but was otherwise quite uniform both spatially 

 and temporally during the course of this study. Mean salinities 

 ranged from 25.1 o/oo (surface waters. Cruise 3) to 26.8 o/oo (bottom, 

 Cruise 8). The small differences in temperature and salinity between 

 surface and bottom waters at all stations indicate thorough mixing is 

 taking place in this area of the Sound. 



Nutrient samples collected on our cruises have been processed and 

 the data fed to our computer, but results are not yet available. 



