The little tuna, Euthynnus alletteratus (Rafinesque), was the species most frequently brought in to the fishing dock at Pier 5, Miami, Florida, between September, 1952 and August, 1953. During this period, 1340 were examined, the period of greatest abundance being during the
summer months. Data were collected on lengths, weights, frequency of occurrence, stomach contents and the reproductive cycle. Additional specimens were examined during the summer of 1951 between Cape Hatteras, North Carolina, and Cape Canaveral, Florida. Data are presented on the monthly and
overall size distribution of fish taken, and growth is discussed on the basis of length frequencies. Male specimens of little tuna were found in a ripe condition from February through November, and ripe females occurred from January through November. Although the adults are typically inshore
forms, occurring in less than 20 fathoms, the young are more common over deep water. Sex ratio and size at maturity are also discussed, and the food and feeding habits are reviewed.
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