Re: tadpoles, some spam

["Bruce Stallsmith" <fundulus at hotmail_com>]

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 
column.

Happy 4th of July to all my friends, Yankees & Rebs! (and undecideds)

--Bruce Stallsmith
Huntsville, AL

>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?
>
>Thanks,
>
>Scott

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