Help! Polypterus eggs

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Halcyone

Feeder Fish
Jun 28, 2007
1
0
0
Chicago, IL, USA
Hello; I'm a researcher at the University of Chicago doing work on hindbrain evolution. Polypterus' position as one of the most 'primitive' fish makes them particularly important for comparison in any broad evolutionary study of vertebrate characters, but up until the relatively recent success of captive breeding programs, the eggs have just not been available.

I've been trying to take advantage of this and secure very young Polypterus for several months, but it's really been quite a task. I've tried contacting few sites online that seem to be connected with captive breeding programs and trying to work something out with an importer, but mostly I'm getting the response of, "We've never done that before, so no."

I thought I'd post here to see if anyone either knows of a place that might be willing to part with some eggs, or has a successfully breeding pair at hand. I'm hoping to get around 100-200 eggs, but even a handful would be wonderful. Albinos are preferable (since pigmentation develops pretty early), but any species or variety of Polypterus (or Ropefish) will work. Eggs are preferable, but I can also work with larvae under one inch (though these are more delicate to ship than eggs), or a breeding pair of adults. I have all the documents needed to import if necessary, and I'm open to paying whatever price you think is fair, if you have the eggs yourself.

In addition to telling us a lot about the evolution of the brain, these fish will be used to help understand and find a cure for diabetes and human brain defects related to the cranial nerves. I can provide more information on the specifics of the research if you're interested. Thank you very much for your help!

Sincerely,
Morgan Wirthlin
the University of Chicago
http://princelab.bsd.uchicago.edu/projects/index.html
 
I know it's quite rare to have captive polypterus breed, but not unheard of. I keep them but have not had any breed.
I know it's been done though...
 
^not really desperate but dedicated to his research, and since its so rare for us to see eggs or breeding in captivity, i would understand that he or she is willing to go to extremes to get the needed eggs or larvae for research, especially important research regaurding the brain. i think what you're doing is great morgan, and i think its so cool that my favorite fish has the potential to help cure diabetes and brain defects!
 
maybe see if you can get intouch with a supplier who could get you in touch with one of those mass breeding facilities where we know senegals are atleast bred, once you go through enough people i don't doubt you can get some eggs or some larva.
 
''maybe see if you can get intouch with a supplier who could get you in touch with one of those mass breeding facilities where we know senegals are atleast bred, once you go through enough people i don't doubt you can get some eggs or some larva.''
its been thought of however the problem is the eggs hatch in 60-90 hours
and larval polypterids are very delicate and need extremely clean water.Shipping them halfway around the world would be risky at best.
I've asked around and no one I know in the area are breeding poly's
I'd suggest geting a pair and when the female is ripe induce spawing
with hormones if necessary to get the eggs-Anne
 
Halcyone (Morgan),
I breed polypterus regularly with hormones and albino senegalese are quite straightforward. If you have some mature broodstock, send me an email or PM and I can step you through the basics. Females usually have 600-800 eggs but fertilization rates are usually the problem.
 
i kinda of remembered fishdance saying he's bred the easier to breed polyp's but i never thought of mentioning it. awesome!
 
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