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Weird platy happenings...is this possible?
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Learn To Fly
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Joined: 16 Apr 2010
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PostPosted: 2010.04.19(Mon)8:30    Post subject: Weird platy happenings...is this possible? Reply with quote

My classroom had (they have long since died and were a science project) a couple of Platys. The original one had fry and all died but one (and the adults died of old age-were very big). This one fry grew up and was the only platy in the tank, but she became pregnant and had three more fry. These three fry were all females and became pregnant as well. They did have a few fry but all died. What I am wondering is, how did they become pregnant? There was never a male in the tank, except for a Zebra Danio, and I don't think that he was the father Wink. Has this happened to anyone else and is it possible? I have been wondering for a very long time...

Thanks!
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59FIFTY
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Joined: 20 Aug 2009
Location: Memphis Tennessee

PostPosted: 2010.04.19(Mon)9:41    Post subject: Reply with quote

Easy one! Livebarrers can hold sperm in them and use it when they wish. Maybe one of the fry was a male and possibly pregnated her...
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PostPosted: 2010.04.20(Tue)7:16    Post subject: Reply with quote

I could understand that about the first fry perhaps but her daughters? None of the other fry lived to be big enough to see...not really old enough to breed.
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Caton
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PostPosted: 2010.04.20(Tue)7:29    Post subject: Reply with quote

They hold sperm and can have multiple birthing's, so if one mated once it could have 4 birthing's taking over a period of 5 months.
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Learn To Fly
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PostPosted: 2010.04.20(Tue)9:07    Post subject: Reply with quote

Yes, I know that but it is the fact the the fry's fry were pregnant even though there were no males in the tank that I am wondering about.
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diademhill
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PostPosted: 2010.04.20(Tue)17:47    Post subject: Reply with quote

It is called parthenogenesis and has been observed before in various livebearers.
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PostPosted: 2010.04.21(Wed)6:10    Post subject: Reply with quote

diademhill wrote:
It is called parthenogenesis and has been observed before in various livebearers.


Thanks!
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Fern
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PostPosted: 2010.04.24(Sat)11:11    Post subject: Reply with quote

I have the same thing going on with 2 young platty females as well. Glad to know I'm not completely insane! Thats pretty neat that they can reproduce by themselves if they need to.
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katienaha
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PostPosted: 2010.04.24(Sat)15:25    Post subject: Reply with quote

clearly they have evolved past the need for men... Wink
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rales12
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PostPosted: 2010.04.25(Sun)1:51    Post subject: Reply with quote

katienaha wrote:
clearly they have evolved past the need for men... Wink


LOL... sometimes I wish I could do that. Wink



Topic related, though... are all of the offspring female when this happens? Like they clone themselves and give birth to their clones?
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