[CINC] dolphin discussion

[Clare Fritzsche]

Chuck Rennie sent this response about our two local common dolphin 
species. As he suggests, when you're on a boat and are uncertain whether 
you're encountering short-beaked or long-beaked common dolphins, please 
just mark "Dsp" for Delphinus species.

    Without a doubt, Delphinus capensis is more common in 
    our area--but not every dolphin is going to be capensis.  Also, despite the 
    genetic differences, it is not rare to see both species in the same large 
    aggregation.  If there is question, the identification should simply be left as 
    Delphinus sp.  If photos are taken, it may be possible for a better 
    identification after the fact.  As far as actual identification in the water goes, I 
    find the most reliable (but not perfect) characteristic to be the shape of 
    the melon.....

    Warm regards,

    Chuck Rennie
      


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