7. Inorganic Phosphate . Values are given in 

 microgram atoms per liter to the nearest 

 0.1 of a unit . 



8. Nitrate -nitrite . These values are given in 

 microgram atoms per Liter to the nearest 

 0.5 of a unit. 



9 . Carbohydrates (Arabinose). These values 

 are given in terms of milligrams per liter 

 to the nearest 0.1 of a unit. Collier et al. 

 (1953) presented a technique for estimating 

 certain elements of the organic materials 

 in sea water which react to the test for car- 

 bohydrates . The carbohydrate values are 

 given as arabinose equivalents, and are not 

 necessarily the actual concentrations of car- 

 bohydrate substances . 



10. Proteins (Tyrosine). These values are given 

 to the nearest 0.1 of a unit as milligrams 

 per liter of protein material in sea water, 

 which reacts to the test for tyrosine. 



Biological 



1 . Plankton volumes (Gulf III and silk half-meter 

 nets) , table 8. The position given is that at 

 beginning of the tow . The depth of the haul 



is given from to the greatest depth reached. 

 The volumes as given are "wet volumes" 

 (procedures for determination were given 

 under methods in report for Cruise 1). Very 

 few samples contained large organisms such 

 as jellyfish (which were removed), so that 

 the volumes represent smaller organisms. 



2. Plankton volumes (Gulf lA High-speed samp - 

 ler) , table 9. The position given is that at 

 the center of the tow . All tows were made 

 at the surface . The volumes as given are 

 "wet volumes" (procedures for determina- 

 tion were given under methods in report for 

 Cruise 1). Very few saitiples contained 

 large organisms such as jellyfish (which were 

 removed), so that the volumes represent 

 smaller organisms . 



3 . Numbers of plankton organisms per cubic 

 meter of water (half-meter net) , table 10. 

 The procedures for plankton tows, methods 

 for sorting and counting, and calculations of 



numbers of organisms were described under 

 methods in report for Cruise 1 . Counts are 

 given for major groups as indicated. 



4. Numbers of plankton organisms per cubic 

 meter of water (high-speed sampler ), table 11. 

 The procedures for plankton tows, methods 

 for sorting and counting, and calculations of 

 numbers of organisms were described under 

 methods . Counts are given for major groups 

 as indicated. 



5. Numbers of plankton organisms per cubic 

 meter of water (continuous plankton sampler), 

 table 12. Description of this sampler, its 

 use, and methods of calculating numbers of 

 organisms were given under methods in re- 

 port for Cruise 1 . Counts are given by com- 

 partment for major groups as indicated. 



6. List of the species of fish in dip-net, trolling , 

 and stomach contents collections (D-dip net ; 

 T-troUing; S-stomach content) , table 13. 

 The species are listed in alphabetical order, 

 followed by symbols indicating method of 

 capture. 



7. Numbers and species of fish taken by trolling, 

 table 14. The stage of gonad development is 

 based on International Council classifications 

 of gonad maturity for the herring (Internation- 

 al Councils Rapports et Proces-Verbaux des 

 Reunions, Vol. LXXIV, pp. 117, March 1931), 

 The scale is only a guide to general classifica- 

 tions and must be treated as such. 



This scale follows: 



Stage I. Virgin individuals. Very small 



sexual organs close under vertebral 

 column. Wine -colored torpedo - 

 shaped ovaries about 2-3 cm. long 

 and 2 -3 mm. thick. Eggs invisible 

 to naked eye. Whitish or grayish 

 brown knife-shaped testes 2-3 cm. 

 long and 2-3 mm . broad. 



Stage II. Maturing virgins or recovering 

 spents. Ovaries somewhat longer 

 than half the length of ventral cavity, 

 about 1 cm. diameter. Eggs small 

 but visible to naked eye. Milt whit- 



