METHODS 



Nansen bottles were used for collection of water samples These were 

 lowered from the 62 -foot motor vessel Pompano to the desired depth by means of 

 a 1/8 -inch hydrographic cable attached to an electrically -driven winch. Depths 

 were determined by measuring the length of cable ur wound from the drum No 

 attempt was made to correct for wire angles caused by drift of the vessel. Wind 

 velocities were estimated according to the Beaufort scale and wind directions were 

 determined with the aid of the ship's flag and compass . Inorganic phosphate and 

 nitrate determinations were made according to the methods described by Robinson 

 and Thompson (1948). Total phosphate was determined by the method described by 

 Harvey (1948), except that comparisons were made by means of Nessler tubes. 

 Oxygen was determined by the modified Winkler method which increased the concen- 

 tration of the alkali -iodide reagent from 2.5 N andv-Sy^^respectively . Water 

 temperatures were taken with reversing thermometers attached to the Nansen 

 bottles . Temperature values presented in the tables are not corrected and for this 

 reason are not recorded beyond the nearest tenth of a degree . The pH measure- 

 ments were made with a Hellige comparator and v/ere corrected for salinity . 

 Salimties were determined by the method described by Martin Knudsen (1901). 

 Water transparency was measured with a standard secchi disc . 



Rose Mary Calaway assisted in tabulating and proof reading the data 

 presented in this paper and also constructed and photographed the cruise pattern 

 figures. 



LITERATURE CITED 



) 



Galtsoff, Paul S . 

 1948. 



Red Tide, U.S. Fish and Wildlife Service, 

 Special Scientific Report No . 46 . 



Graham, H. W. JohnM. Amison, and Kenneth T. Marvin. 



1954. .. Phosphorus Content of Waters Along the West Coast 



of Florida. U. S. Fish and Wildlife Service, Special 

 Scientific Report: Fisheries No. 122. 



Harvey, H. W. 

 1948. 



The Estimation of Phosphorus and Total Phosphorus 

 in Sea Water, Journal of Marine Biological 

 Association, vol. 27, pp. 3.37-359. 



