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A. sp. Breitbinden - male or female?

Discussion in 'South American Cichlid Identification' started by boofeng, Jun 17, 2018.

  1. boofeng

    boofeng Member

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    Hello

    Below are photos of a single fish, the supposed "female" of a pair passed to me by a friend. The fish came in a Colombia import and were sold as A. sp. Breitbinden.

    From the photos, is it possible to positively ID the sex of the fish?

    Thanks!

    WhatsApp Image 2018-06-18 at 13.27.59.jpeg WhatsApp Image 2018-06-18 at 13.30.27.jpeg WhatsApp Image 2018-06-18 at 13.32.18.jpeg
  2. Mike Wise

    Mike Wise Moderator Staff Member 5 Year Member

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    I'm not sure based just on the photos. I'd expect much darker anterior ventral fin spines if it was a female. Size?
  3. boofeng

    boofeng Member

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    Thanks, Mike!

    The fish is at least 3 cm standard length, probably 3+ cm (that's above an inch, maybe around one and a half inches). It should be pretty mature, the import was a while back (about January or February), and they came in reasonably large and well-developed already.

    The middle dorsal fin spines seem be serrated (in one photo you can see little ridges along the folded dorsal fin?) - can this be positive ID of a male? (As in, would females only show serration on the first three to four spines?)
  4. Mike Wise

    Mike Wise Moderator Staff Member 5 Year Member

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    Still not fully developed. Most brevis-group species don't fully develop their finnage and colors until they are at least 5cm/2" SL (unless stunted). It's probably a young male, but can't be 100% sure. It might not even be A. piaroa (or Breitbinden). We see A. megaptera (or Breitbinden-Kurzlappen) more commonly available now.
  5. boofeng

    boofeng Member

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    Yea, I'm getting used to this, I think! I'll just see how things develop. Thank you! :)

    (You're probably right too about them being A. megaptera, the male fish in this batch all show longer anterior than middle dorsal spines, I'm attaching a photo of another fish from the same import - not mine.)

    TEMP1.jpg

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