from the Galveston Bay system, Texas. 



Publ. Inst. Mar. Sci, Univ. Tex. (7 MS. 



pp., 1 fig.). 

 Pullen, Edward J., and W. Lee Trent. 



White shrimp ennigration in relation to size, 



sex, temperature, and salinity. Proc. 



FAO World Conf. Biol. Cult. Shrimps 



Prawns (18 MS. pp., 4 figs.). 

 Pullen, E. J., C. R. Mock, and R. D. Ringo. 

 A net for san-ipling the intertidal zone of 



an estuary. Linnnol. Oceanogr. (6 MS. 



pp., 2 figs.). 

 Ringo, Robert D., and Gilbert Zamora, Jr. 

 A penaeid postlarval character of potential 



taxonomic value. Publ. Inst. Mar. Sci. 



Univ. Tex. (9 MS. pp., 1 fig.). 

 Stevenson, Robert E. 



Local winds along the Southern California 



coast seen from Gemini V. Weather- 

 wise (9 MS. pp., 4 figs.). 



Stevenson, Robert E., and Dale F. Leipper. 

 Influence of the hurricane on the structure 

 of the thermocline. Proc. Hurricane 

 Symp., October 10-11, 1966 (pt. I--7 

 MS. pp., 8 figs.; pt. II-- 12 MS. pp., 

 7 figs.; pt. III--7 MS. pp., 6 figs.). 



Yokel, B. J., M. A. Roessler.and E. S. Iversen. 

 Data report on juvenile stages of pink 

 shrimp ( Penaeus duorarum) and on 

 fishes collected in Buttonwood Canal, 

 Florida, December 1962 to June 1965. 

 U.S. Fish Wildl. Serv., Data Rep. (25 

 MS. pp.). [Research under Bureau con- 

 tract.] 



Zein-Eldin, Zoula P., and George W. Griffith. 

 An appraisal of the effects of salinity and 

 temperature on growth and survival of 

 postlarval penaeids. Proc. FAO World 

 Conf. Biol. Cult. Shrimps Prawns (20 

 MS. pp., 5 figs.). 



SHRIMP BIOLOGY PROGRAM 



Research in this program varied from field 

 studies to determine whether postlarval brown 

 shrimp overwinter in the Gulf of Mexico to 

 laboratory studies designed to develop methods 

 for raising large quantities of diatoms to 

 feed mass cultures of larval shrimp. More 

 specifically, the research consisted of study- 

 ing: (1) the distribution and abundance of 

 larval shrimp in the Gulf of Mexico; (2) methods 

 for identifying and cxilturing shrimp larvae 

 as well as the culturing of diatonns for feeding 

 larval shrimp; (3) cultivation of shrimp in 

 artificial ponds; (4) organisms ecologically 

 associated with shrimp; and (5) the ecology 

 of pink shrimp in Florida Bay. 



Also, personnel at the Institute of Marine 

 Sciences, University of Miami, under con- 

 tract with the Bureau of Commercial Fish- 

 eries, studied the movements of postlarval and 

 juvenile pink shrimp into and out of the 

 Everglades National Park estuary. Whether 

 in Texas or Florida, our endeavors, although 

 diversified, were designed to provide a better 

 understanding of the life histories of shrimp 

 in the Gulf of Mexico. 



Biologists in this program were authors 

 or coauthors of 12 scientific reports, pub- 

 lished or submitted for publication, on var- 

 ious phases of the life history of shrimp. 

 These articles, submitted to various sci- 

 entific journals and serials, should be avail- 

 able to researchers and industry within a 

 year. 



The annual progress report of each project 

 follows. 



Robert F. Temple, Program Leader 



DISTRIBUTION AND ABUNDANCE 

 OF LARVAE 



All plankton samples collected in 1964 were 

 examined in the laboratory during fiscal year 

 1967. We collected the samples with Gulf V 

 plankton nets along transects perpendicular 

 to the coasts of Louisiana and Texas. Station 

 depths at which sannples were taken ranged 

 from 7 to 110 m. (4-60 fathoms). Since 1962, 

 sampling in these waters has included 1,568 

 metered hauls. Examination of the catches 

 has provided information on the relative 

 abundance and seasonal distribution of 

 planktonic- stage penaeid shrimp. Grouped by 

 depth zones, the numbers of samples taken 

 in 1962-64 in Texas and Louisiana waters 

 are presented in table 2. 



Table 2. --Number of Giilf V plankton tows, by depth zones, taken in 

 Louisiana and Texas waters, 196Z-64 



-' Mississippi River to Texas. 



