in the alimentary tracts of larvae collected at 

 Indian River Inlet may have been largely due 

 to their defecating all or part of the contents 

 during capture and preservation. Proper cap- 

 ture devices for larvae and their anesthetizing 

 prior to preservation should reduce loss of 

 their alimentary tract contents. Other factors 

 which may have contributed to the paucity of 

 food in alimentary tracts were lower feeding 

 rate during dark nights and digestion rate in 

 relation to elapsed time since last feeding. 



Information obtained from our studies en- 

 abled us to establish and successfully rear At- 

 lantic menhaden from larvae to juveniles in 

 captivity. The work also provided insight into 

 some aspects of the estuarine ecology of young 

 Atlantic menhaden. 



ACKNOWLEDGMENTS 



Walter A. Chipman, former director, and 

 Donald E. Hoss of the Bureau of Commercial 

 Fisheries Radiobiological Laboratory, Beau- 

 fort, N.C., gave us many helpful suggestions 

 in the use of radioisotope techniques and 

 equipment. 



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FOOD OF YOUNG ATLANTIC MENHADEN IN RELATION TO METAMORPHOSIS 



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