Physical and chemical oceanographic data were evaluated, coded, and for- 

 warded to the National Oceanographic Data Center (NODC) for processing by 

 electronic computer. Machine computations provided temperature, salinity, and 

 dissolved oxygen interpolation at standard depths plus dynamic depth calculations, 

 sigma-t, and sound velocity . These data are presented in Appendix A. 



Bottom sediments were collected with Phleger and Hydroplastic (PVC) corers. 

 All samples obtained were shipped to the Department of Geology, Florida State 

 University, Tallahassee, Florida, for analyses and publication of the resulting data . 

 The locations and field descriptions of the bottom sediment samples collected are 

 given in Appendix B. 



1 . Temperatures 



Paired protected reversing thermometers were used to observe in situ water 

 temperatures. Paired readings were averaged unless protected thermometers differed 

 by 0.06*C. or more; the reading from the thermometer considered most reliable then 

 was used, or the point was faired from adjacent values. This evaluation of reliability 

 was based on the thermometer's previous history and the credibility of the individual 

 temperature when plotted with better documented adjacent values. 



Unprotected reversing thermometers paired with protected reversing thermom- 

 eters were used to calculate thermometric depth values. Depth of sample then was 

 determined using thermometric depths and/or observed wire angles. 



2. Salinities 



Salinities analyzed aboard ship were determined by means of a Wenner- 

 Smith-Soule conductivity bridge. Samples returned to the Naval Oceanographic 

 Office were analyzed with an inductively-coupled salinometer. Double determina- 

 tions were made with the conductivity bridge unless differences exceeded .02%o 

 when a third determination was made. Single determinations were made with the 

 inductively-coupled salinometer. 



3. Dissolved Oxygen 



Dissolved oxygen content was determined aboard ship by titration according 

 to the Jacobsen-Roblnson-Thompson modification of the Winkler Method . All oxy- 

 gen samples were analyzed within 4 hours of the time the sample was taken. 



4. Dissolved Inorganic Phosphate 



Dissolved inorganic phosphate samples were collected at 25 stations. The 

 analyses were determined with a Model B Beckman Spectrophotometer using the 

 method derived by the Canadian Fisheries Research Board. The sensitivity of the 



WILSON, W . D . Equation for the speed of sound In sea water, Journal of the 

 Acoustical Society of America, vol. 32, no. 10, pp. 1357, Oct. 1960. 



