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 re- 

 covering spents. Ovaries 

 somewhat longer than half 

 the length of ventral 

 cavity, about 1 cm. dia- 

 meter. Eggs small but 

 visible to naked eye. Milt 

 whitish, somewhat blood- 

 shot, same size as ovaries, 

 but still thin and knife- 

 shaped. 



Stage III. Sexual organs more swollen, 

 occupying about half of 

 ventral cavity. 



Stage IV. Ovaries and testes nearly 

 filling 2/3 of ventral 

 cavity. Eggs not trans- 

 parent, milt whitish, 

 swollen. 



Stage V. Sexual organs filling ven- 

 tral cavity. Ovaries with 

 some large transparent 

 eggs. Milt white, not yet 

 running. 



Stage VI. Roe and milt running 

 (spawning) . 



Stage VII. Spents. Ovaries slack 



with residual eggs. Testes 

 baggy, bloodshot. Doubt- 

 ful cases are indicated by 

 quoting two stages, e.g. 

 "St. I-II, St. VII-II", 

 etc. 



Numbers and species of fish taken by dip 

 net , table 15. There is shown, by 

 family, the genera and species taken. 

 Numbers of specimens from each station 

 are given in parentheses, followed by 

 the approximate size or size range of 

 standard length, in millimeters. 



ACKNOWLEDGMENTS 



Acknowledgment is made to the follow- 

 ing agencies and individuals for contribu- 

 tions in securing and processing the material 

 presented. To the Navy Hydrographic Office 



for their cooperation in planning and 

 executing the field program and for pro- 

 cessing the physical oceanographic data. 

 To the Office of Naval Research, and Dr. 

 Sidney R. Galler in particular, for help 

 in planning and executing the field program. 

 To the Georgia Game and Fish Commission for 

 their cooperation in the biological and 

 chemical studies; through Frank T. Knapp , 

 biologist, and Joseph E. Moore, chemist 

 (now a member of Fish and Wildlife Service 

 staff). To the Florida State Board of Con- 

 servation (through the Marine Laboratory 

 of the University of Miami) for their 

 cooperation in the biological studies, 

 through George F. Arata, Jr., biologist. 

 To Dean F. Bumpus of the Woods Hole Oceano- 

 graphic Institution for preparation of the 

 salinity, temperature, and density profiles 

 which appear as figures 5-8. 



From our own staff special recogni- 

 tion is due: Frederick H. Berry for iden- 

 tification of dip-net and stomach content 

 material; Hugh M. Fields, Donald Moore, and 

 Melba C. Wilson for the plankton organism 

 identifications and counts; Edward Cohen 

 (formerly chemist) for chemical determina- 

 tions; and Joseph E. Moore for assitance in 

 assembling the physical and chemical data. 

 We also appreciate the assistance of other 

 members of the staff who aided in one way 

 or another: Charles P. Goodwin, Clyde C. 

 Bryant, Herbert R. Gordy, Carolyn V. Martin, 

 and Mary E. Cobb. Acknowledgment is made 

 of the excellent cooperation of crew members 

 of the MA Theodore N. Gill and Captain 

 Mauritz C. Fredricksen in particular. 



LITERATURE CITED 



ANDERSON, WILLIAM W. , JACKW. GEHRINGER, 

 AND EDWARD COHEN. 



1956. Physical oceanographic, biological, 

 and chemical data. South Atlantic 

 coast of the United States, MA Theo - 

 dore N. Gill Cruise 1. U. S. Depart- 

 ment of the Interior, Fish and Wild- 

 life Service, Special Scientific 

 Report — Fisheries No. 178, pp. 1-160. 

 figs. 1-15. 



ANDERSON, WILLIAM W., AND JACK W. GEHRINGER. 



1957. Physical oceanographic, biological, 

 and chemical data. South Atlantic 

 coast of the United States, MA Theo - 

 dore N. Gill Cruise 3. U.S. Depart- 

 ment of the Inter or. Fish and Wildlife 



