ish, somewhat bloodshot, 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 

 transparent, milt whitish, swol- 

 len. 



Stage V. Sexual organs filling ventral 

 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. Doubtful cases are 

 indicated by quoting two stages 

 e.g. "St. I-II, St. VII-II, " etc. 



8. 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. 



AC KNOWLE DOME NTS 



Acknowledgment is made to the follow- 

 ing agencies and individuals for contributions 

 in securing and processing the material pre- 

 sented. To the Navy Hydrographic Office for 

 their cooperation in planning and executing the 

 field program and for processing the physical 

 oceanographic data. To the Office of Naval Re- 

 search, and Dr. Sidney R. Caller in particular, 

 for help in planning and executing the field pro- 

 gram . To the Georgia Came and Fish Commis- 

 sion for their cooperation in the biological and 

 chemical studies; through Frank T. Knapp, 

 biologist and Joseph E. Moore, chemist (now a 

 member of U.S. Fish and Wildlife Service staff). 

 To the Florida State Board of Conservation 

 (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 Ocean- 

 ographic Institution for preparation of the salinity, 

 temjjerature, and density profiles which appear 

 as figures 5-19. 



From our own staff special recognition 

 is due Frederick H. Berry for identification of 

 dip-net and stomach content material, to Hugh 

 M. Fields for plankton organism counts, and to 

 Edward Cohen (formerly chemist) for chemical 

 determinations and assistance in assembling the 

 physical and chemical data . We 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, Melba C. 

 Wilson, Joy T. Blanton, Charlie B. Casper, and 

 Elizabeth H. Swindell. Acknowledgment is also 

 made of the excellent cooperation of crew mem- 

 bers of the Theodore N. Gill , and Captain 

 Mauritz C. Fredricksen in particular. 



LITERATURE CITED 



Anderson, Wm.W., Jack W.Gehringer, and 

 Edward Cohen 

 1956. Physical oceanographic, biological, 

 and chemical data. South Atlantic 

 Coast of the U.S., M/V Theodore 

 N.Gill Cruise 1. U.S. Dept. Int., 

 Fish & Wildl. Serv., Spec. Sci. 

 Rept.:Fish.No. 178, pp. 1-160, 

 figs. 1-15. 



Physical oceanographic, biological, 

 and chemical data, South Atlantic 

 Coast of the U.S., M/V Theodore 

 N.Gill Cruise 2. U 

 Serv. 



1956a . 



Fish & Wildl. 

 Fish. No. 198, pp. 



S.Dept. Int., 

 Spec . Sci . Rept . 

 1-270, figs. 1-20. 



Arnold, Edgar, L.Jr., and Jack W. Gehringer 



1952. High speed plankton samplers. 

 U.S. Dept. Int., Fish & Wildl. Serv. 

 Spec. Sci. Rept.: Fish. No. 88, 



pp. 1-12, figs. 1-8. 



Collier, Albert, S.M.Ray, A.W. Magnitzky, 

 and Joe O. Bell. 



1953. Effect of dissolved organic sub- 

 stances on oysters. Fish. Bull. 

 Fish and Wildl. Serv., 54 (84): 

 167-185, 14 figs. 



