Whale # 4 stomach content analysis

Discussion in 'ID Requests' started by Steve O'Shea, Dec 22, 2004.

  1. Steve O'Shea

    Steve O'Shea Colossal Squid Supporter

    Nov 19, 2002
    Likes Received:
    This specimen, 'Whale # 4" is actually 'Whale # 1' [Department of Conservation #] of the pod that stranded on KariKari Beach, West Coast, Auckland on 16 November 2003 (one of the 13). [sampled on 18 Nov 2003]

    These beaks have only just been identified, and like 'Whale's 1-3', as far as I know (to the best of my efforts), every squid beak in the stomach was retained (this time the number of lower beaks exceeds that of the uppers). The identifications must be treated as provisional, although I only expect (if any changes are to occur) 1 or 2 changes (?Discoteuthis concerns me - I do not believe that the single beak is correctly identified).

    If you like you can look at the squid composition of this whale, compare it to that of the previous lot, and try and make some sense out of the jigsaw (again based on what we know of the New Zealand and adjacent water mass squid faunas). I've not provided lower rostral lengths for the beaks, as I've yet to measure them.

    Identifications are based on lower beaks.

    Here goes:
    Whale # 4, male, length to come, stranded 16 November 2003, Karikari Beach (DOC Whale # 1 ) [sampled 18 November 2003]
    Number of upper beaks: 40
    Number of lower beaks: 33

    Lower beak-determined squid composition in diet of Sperm Whale # 4
    Pholidoteuthis boschmai: 4
    Lepidoteuthis grimaldii: 1
    Moroteuthis ingens: 3
    Moroteuthis robsoni: 1
    Histioteuthis cf. eltaninae: 7
    Histioteuthis miranda: 10
    Teuthowenia sp.: 3
    Cranchiid sp. 1: 2
    ?Discoteuthis sp.: 1

    Again, much more could be said.

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