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Re: tadpoles, some spam
Hi Scott, Xenopus tadpoles are immediately obvious if you've ever seen them.
They're more elongated than most North American tadpoles, and a yellow-brown
color. I don't know if they're a good candidate for the aquarium trade for 2
reasons: the first is BECAUSE they are such a successful invasive species it
wouldn't be a good idea to ship them around further (well, maybe Manitoba
and Alaska...). And secondly, it's possible to spawn huge numbers of them in
laboratories using hormones to prime the adults. When I was in graduate
school the developmental biology professor used Xenopus in her classes, and
she could produce 400-500 offspring from a pair of breeders with the help of
injected hormones. She claimed the hormone would probably work on fish,
although I never tried it.
As to killie-content, I'm keeping some Fundulus species which turn out to be
great aquarium fish, esp. F. notti, F. olivaceus and my recent fave, F.
catenatus (northern studfish). All are peaceful fish that are not picky
eaters, are interesting looking and are active in the top of the water
Happy 4th of July to all my friends, Yankees & Rebs! (and undecideds)
>Date: Fri, 30 Jun 2000 20:27:27 -0500
>From: "Scott Davis" <unclescott at prodigy_net>
>Subject: Re: tadpoles, some spam
> > One other thing to consider is that many areas are plagued by invasive
> > amphibians, usually these are toads. If you can identify your tadpoles
> > as an invasive species, then feel free to wipe them out. Cane toads and
> > xenopus leavis are good examples of invasive amphibians.
>Where have they invaded? Is there a way to identify their tadpoles? (A
>raccoon hanging out of the toad's mouth?)
>Can the xenopus be collected for the aquarium trade in the manner that the
>NFC people were doing with some Florida exotics?
>Could the cane toads be used as speed bumps?
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