MEAN CARAPACE LENGTH Qui*.') 



•o gel II II 



Figure 3. — Mean size of pink shrimp caught on different 

 dates in Old Tampa Bay and at Egmont Key, Fla. 



that they become more active and numerous 

 in a given area when water temperature had 

 risen to 15° C. Fuss and Ogren (1966) found 

 that they tend to remain burrowed at tem- 

 peratures below 14° C. and to show anactivity 

 ratio of 50 percent or less regardless of light 

 levels or moon phase. Tabb, et al. (1962) sug- 

 gested that they might move into deeper water. 

 Catches also varied between stations by 

 month (tables 1 and 2). Ingeneral, catches were 

 lowest in the spring and early summer, and 

 peaks generally came in the fall and early 

 winter. 



LITERATURE CITED 



AARON, RICHARD L., and WARREN J. WISBY. 



1964. Effects of light and moon phase on the 



behavior of pink shrimp. Proc. Gulf 



Carib. Fish. Inst. 1 6th Annu. Sess. : 121- 



130. 



BROAD, CARTER. 



1950. The North Carolina shrimp survey. 

 North Carolina Inst. Fish. Res. Ann. 

 Rep.: 62 pp. 

 DRAGOVICH, ALEXANDER, and JOHN A. 

 KELLY, JR. 

 1964. Ecological observations of macro- 

 invertebrates in Tamp Bay, Florida, 

 1961-1962. Bull. Mar. Sci. Gulf Carib. 

 14(1): 74-102. 

 ELDRED, BONNIE, ROBERT M. INGLE, 

 KENNETH D. WOODBURN, ROBERT F. 

 HUTTON, and HAZEL JONES. 



- IfMPfHAlllHI 

 ■ SHRIMP 



Figure 4. — Number of pink shrimp caught in Old Tampa 

 Bay and at Egmont Key (data combined) in relation to 

 temperature. 



1961. Biological observations on the com- 

 mercial shrimp, Penaeus duorarum 

 Burkenroad, in Florida waters. Fla. 

 Board Conserv. Prof. Pap. Ser. 3: 

 139 pp. 

 FUSS, CHARLES M., JR. 



1964. Observations on burrowing behavior 

 of the pink shrimp, Penaeus duorarum 

 Burkenroad. Bull. Mar. Sci. Gulf Carib. 

 14(1): 62-73. 



FUSS, CHARLES M., JR., and LARRY H. 

 OGREN. 

 1966. Factors affecting activity and bur- 

 rowing habits of the pink shrimp, Pen- 

 aeus duorarum Burkenroad. Biol. Bull. 

 (Woods Hole) 130(2): 170-191. 

 GUNTER, GORDON, J. Y. CHRISTMAS, and 

 ROSAMOND KILLEBREW. 



1964. Some relations of salinity to popula- 

 tion distributions of motile estuarine 

 organisms, with special reference to 

 penaeid shrimp. Ecology 45( 1 ) : 181- 

 185. 



HILDEBRAND, HENRY H. 



1955. A study of the fauna of the pink shrimp 



( Penaeus duorarum Burkenroad) 



grounds in the Gulf of Campeche. Publ. 



Inst. Mar. Sci., Univ. Tex. 4(1): 169- 



232. 

 IDYLL, C. P., E. S. IVERSEN, and B. YOKEL. 



1965. Abundance of juvenile pink shrimp on 

 the Everglades National Park nursery 

 grounds. In Annual report, Galveston 

 Biological Laboratory U.S. Fish Wildl. 

 Serv., Cir. 230: 28-29. 



IVERSEN, E. S., and C. P. IDYLL. 



1959. The Tortugas shrimp fishery: The 

 fishery fleet and its method of operation. 

 Fla. Board Conserv. Tech. Ser. 29: 

 35 pp. 



