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Gravid P.ruber ruber

This is a discussion on Gravid P.ruber ruber within the Plethodontids and Lungless Salamanders (Bolitoglossa, Eurycea, Plethodon, etc.) forums, part of the Species, Genus & Family Discussions category; Hello, My female P. ruber ruber is gravid! I hope she lays and simply does not absorb them. Anyone have ...

Plethodontids and Lungless Salamanders (Bolitoglossa, Eurycea, Plethodon, etc.) The largest, and one of the most diverse groups of salamanders, these salamanders have all evolved to breathe solely through their skin and are found almost exclusively in North America.

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Old 14th September 2011   #1 (permalink)
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Talking Gravid P.ruber ruber

Hello,
My female P. ruber ruber is gravid! I hope she lays and simply does not absorb them.

Anyone have any experince with the eggs/larva?



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Old 9th January 2012   #2 (permalink)
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Default Re: Gravid P.ruber ruber

Well she finally layed about 40-50 eggs a few days ago; but all had cotton-like fungus growing on them and all were lost.
I wish I would have spotted this sooner, but I have been ill lately and unable to check on them every day, as I should have been doing. The interesting thing was, the female was still gaurding the eggs. They had been layed on the underside of a large flat rock.
So the water quality is now poor, so all 4 salamanders are in a temp. setup while I dismantle and clean their tank.
I guess there is always next January.

Josh



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Old 9th January 2012   #3 (permalink)
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Default Re: Gravid P.ruber ruber

Too bad you didn't get more responses, Josh! That's pretty awesome.

I know Ed Moyer works a lot with this species. It's his favorite!

The female may have still guarded the eggs because... well, they're her eggs. Long stretch here, but a lot of bird species will replace a lost egg. That's why biologists oil eggs to smother them, rather than removing them; the adults will just lay another one. So maybe...



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Old 13th January 2012   #4 (permalink)
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Default Re: Gravid P.ruber ruber

Well, I dont think its a first but it was pretty cool to see. I do not see anymore eggs developing, so i think it will be next breeding season before I see more eggs. I was wondering how common it is to breed Pseudotriton in captiviy, do you think Ed would know, he may have had succsful breedings with this animal?



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Old 17th January 2012   #5 (permalink)
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Default Re: Gravid P.ruber ruber

Ours (2 adult pairs) have laid 5 times in the past 3 years at the zoo. Seems like once we got them paired up and properly cycled they lay every year. Clutches are usually well over 100 eggs, so we stopped raising them. Demand for salamanders in zoos really isn't that great.

Your best bet is to separate them from the female as soon as she lays, put 5-10 per deli cup in clean dechlorinated water at ~60F until they hatch. They are not aggressive larvae amongst themselves and can be raised in pretty high densities.

Good luck
Tim



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Old 18th January 2012   #6 (permalink)
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Default Re: Gravid P.ruber ruber

Thanks for the information Tim! It comes just at the right time because my other female is gravid now!
Tim, if she lays her eggs on the under side of a rock as the other female did, I assume the whole rock should be removed?
I am guessing the normal food items for the larva; blackworms, bloodworms, earthworms, copepods, etc...
Thanks again for the info!
Josh



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Old 24th January 2012   #7 (permalink)
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Default Re: Gravid P.ruber ruber

Yes, I would remove the rock and carefully scrape the eggs into several deli cups. They are each suspended by a short stalk-like attachment, just scrape the rock right where it is adhered.

I've raised them on primarily brine shrimp and blackworms, though I'm sure they'd appreciate more variety.

Good luck!
Tim



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