Pink Shrimp Life History 



Thomas J. Costello 



Projects designed to furnish information on the life history of the 

 commercially important pink shrimp, Penaeus duorarum, have been under- 

 taken by the Bureau of Commercial Fisheries in south Florida. Through 

 research contracts with the Institute of Marine Science at Miami, extensive 

 data on the identification and distribution of pink shrimp larvae have been 

 accumulated. Primarily by use of mark-recapture experiments using bio- 

 logical dyes as marking agents, Bureau of Commercial Fisheries biologists 

 have obtained information on the migration, growth, mortality rates, and 

 geographical range of juvenile and adult pink shrimp stocks. 



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Release and recapture sites 

 for pink shrimp marked on 

 the Sanibel and Tortugas 

 grounds in 1961 and 1962. 



Geographic Range The geographical range of Tortugas pink shrimp is grad- 



ually being outlined. Nine mark-recapture experiments involving 106,779 pink 

 shrimp have shown, through recoveries by commercial shrimping vessels, that 

 shrimp inhabiting the Florida Bay and Shark River areas are part of the pop* 

 ulation fished on the Tortugas grounds. Evidence to date indicates that shrimp 

 from Pine Island Sound on Florida's w^est coast and fronn Biscayne Bay and 

 Barnes Sound, on the east coast, do not contribute to this fishery. 



35 



