Acknowledgments 



We would like to thank the owner, Frank 

 LoPreste, and skipper, Steve Loomis, as well as the 

 crew of the MV Royal Polaris for providing the op- 

 portunity to collect specimens. William H. Bayliff 

 and Witold L. Klawe reviewed the manuscript. 



Literature Cited 



Anonymous. 



1987. Annual report of the Inter-American Tropical Tuna 

 Commission 1986. Inter-Am. Trop. Tuna Comm., 264 p. 



COLLETTE, B. B., T. POTTHOFF, W. J. RICHARDS, S. UEYANAGI, 

 J. L. RUSSO, AND Y. NiSHIKAWA. 



1984. Scombroidei: development and relationships. In H. G. 

 Moser et al. (editors), Ontogeny and systematics of fishes, 

 p. 591-620. Am. Soc. Ichthyol. Herpetol., Spec. Publ. No. 1. 

 DOTSON, R. C, AND J. E. Graves. 



1984. Biochemical identification of a bluefin tuna establishes 

 a new California size record. Calif. Fish Game 70:58-64. 

 Harada, T., K. Mizuno, 0. Muriata, S. Miyashita, and H. 

 hurutani. 



1971. On the artificial fertilization and rearing of larvae 

 in yellowfin tuna. Mem. Fac. Agric. Kinki Univ. 4:145- 

 151. 



Matsumoto, W. M., E. H. Ahlstrom, S. Jones, W. L. Klawe, 

 W. J. Richards, and S. Ueyanagi. 



1972. On the clarification of larval tuna identification par- 

 ticularly in the genus Thunnus. Fish. Bull., U.S. 70:1-12. 



Morgan, R. P. 



1975. Distinguishing larval white perch and striped bass by 

 electrophoresis. Chesapeake Sci. 16:68-70. 

 Mori, K. S., S. Ueyanagi, and Y. Nishikawa. 



1971. The development of artifically fertilized and reared lar- 

 vae of the yellowfin tuna, Thunnus albacares. Bull. Far 

 Seas Fish. Res. Lab. (Shimizu) 5:219-232. 

 Nishikawa, Y., and D. W. Rimmer. 



1987. Identification of larval tunas, billfishes and other scom- 

 broid fishes (suborder Scombroidei): an illustrated guide. 

 Aust. CSIRO Mar. Lab. Rep. 186:1-20. 

 Potthoff, T. 



1974. Osteological development and variation in young tunas, 

 genus Thunnus (Pisces, Scombridae), from the Atlantic 

 Ocean. Fish. Bull., U.S. 72:563-588. 

 Powles, H., and D. E. Markle. 



1984. Identification of larvae. In H. G. Moser et al. (editors), 

 Ontogeny and systematics of fishes, p. 31-33. Am. Soc. 

 Ichthyol. Herpetol., Spec. Publ. No. 1. 

 Richards, W. J., and T. Potthoff. 



1974. Analysis of the taxonomic characters of young scom- 

 brid fishes, genus Thunnus. In J. H. S. Blaxter (editor). The 

 early life history of fish, p. 623-648. Springer-Verlag, 

 Berlin. 

 Selander, R. K., M. H. Smith, S. Y. Yang, W. E. Johnson, and 

 J. B. Gentry. 

 1971. Biochemical polymorphism and systematics in the ge- 

 nus Peromyscus. I. Variation in the old-field mouse (Pero- 

 ynyscus polionotus). Univ. Texas Publ. 7103:49-90. 

 Shaklee, J. B., M. J. Champion, and G. S. Whitt. 



1974. Developmental genetics of teleosts: biochemical anal- 

 ysis of lake chubsucker ontogeny. Dev. Biol. 38:356-382. 



Sharp, G. D., and S. W. Pirages. 



1978. The distribution of red and white swimming muscles, 

 their biochemistry, and the biochemical phylogeny of selected 

 scombrid fishes. In G. D. Sharp and A. E. Dizon (editors). 

 The physiological ecology of tunas, p. 41-78. Academic 

 Press, N.Y. 

 Shaw, C. R., and R. Prasad. 



1970. Starch gel electrophoresis of enzymes— a compilation 

 of recipes. Biochem. Genet. 4:297-320. 

 SiDELL, B. D., R. G. Otto, and D. A. Powers. 



1978. A biochemical method for distinction of striped bass 

 and white perch larvae. Copeia 1978:340-343. 

 Siebenaller, J. F. 



1984. Analysis of the biochemical consequences on on- 

 togenetic vertical migration in a deep-living teleost fish. 

 Physiol. Zool. 57:598-608. 

 Smith. P. J., and P. G. Benson. 



1980. Electrophoretic identification of larval and 0-group 

 flounders {Rhombosolea spp.) from Wellington Harbour, N.Z. 

 J. Mar. Freshwater Res. 14:401-404. 

 Smith, P. J., and J. Crossland. 



1977. Identification of larvae of snapper, Chrysophrys 

 auratus Forster, by electrophoretic separation of tissue en- 

 zymes. N.Z. J. Mar. Freshwater Res. 11:795-798. 



John E. Graves 

 Marie A. Simovich 



Department of Biology. 



University of San Diego 

 Alcala Park. 

 San Diego, CA 92110 



Kurt M. Schaefer 



Inter- American Tropical Tuna Commission 

 do Scripps Institution of Oceanography 

 La Jolla, CA 92093 



A COMPARISON OF DEMERSAL ZOOPLANKTON 



COLLECTED AT ALLIGATOR REEF, FLORIDA, 



USING EMERGENCE AND REENTRY TRAPS 



Demersal zooplankton have been shown to be im- 

 portant components of a number of marine com- 

 munities, including coral reefs (Porter and Porter 

 1977; Alldredge and King 1977), kelp beds (Ham- 

 mer 1981), and other habitats (Thomas and Jelley 

 1972). They probably play an important role in the 

 flux of particulate material through benthic com- 

 munities (Porter and Porter 1977). Demersal zoo- 

 plankton can also be important prey for fish and 

 other consumers (Alldredge and King 1977, 1980). 

 Demersal zooplankton are usually sampled by 

 techniques that take advantage of their migration 

 into or out of the plankton. Studies by Alldredge and 

 King (1980, 1985) and Youngbluth (1982) suggest 



838 



FISHERY BULLETIN: VOL. 86, NO. 4. 1988. 



