a few very small dolphin (<2% of the annual catch 

 by weight), landed as bycatch of the flying fish 

 fishery (see Figure 4), indicates the arrival of the 

 first of the young-of-the-year group, with a few very 

 large mature adults from the previous year. Note 

 that many of these young-of-the-year are already 

 mature on reaching Barbados in November, and all 

 are ripe by the time the cohort leaves Barbados in 

 June Note too, that aging of the cohort (Oxenford 



and Hunte 1983) suggests that the cohort was 

 spawned between September and January, when the 

 parent stock would be towards the southeastern, up- 

 current extreme of the proposed migration circuit. 



Life History Comparisons 



Data on life history parameters of dolphin from 

 northern and southern circuits are summarized in 



Table 2.— Life history characteristics of the dolphin Coryphaena hippurus in the western central Atlantic. 



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