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Notropis chrosomus 'type 2'

Started by Guest_Markart_* , Dec 29 2011 01:36 PM

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7 replies to this topic

#1 Guest_Markart_*

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Posted 29 December 2011 - 01:36 PM

Hello all

Anyone enlighten me on the 'type 2' Rainbow Shiner? They are described as such on Ruineman's website (link below.) I'm struggling to find any info on these. Are they a different population/location, or have they been influenced in any way by man?

http://new.ruinemans..."type-2"-m.html

The pic below is taken from my own tank, can anyone confirm which 'type' they are?

As always, thanks in advance.

#2 Guest_tricolor_*

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Posted 29 December 2011 - 02:03 PM

Look normal for me. What's type one like?

#3 Guest_fundulus_*

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Posted 29 December 2011 - 02:17 PM

As a pure guess, the "type 1" may be the redder variety of N. chrosomus that is more typically found in the northern end of its range, such as in Little Wills (Willis?) Creek in DeKalb County, Alabama. More southerly populations such as Bibb or Tuscaloosa County, AL, tend to be bluer as in the attached photo. I've never heard of that designation, maybe some breeder(s) in Europe started using it? Hopefully these people haven't lost track of the origin of their stock.

#4 Guest_farmertodd_*

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Posted 29 December 2011 - 08:40 PM

I will second Bruce's guess.

Todd

#5 Guest_Markart_*

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Posted 30 December 2011 - 08:58 AM

Thanks for replies.

I have some 'white finned' Yellowfins also so the suggestion of 'type 2' being a different population would be no surprise. I agree with Bruce and pray the two populations haven't been mixed; if they have would the off-spring count as hybrids?

Thanks again all, much appreciated; US fish are pretty rare here on the whole so those of us who keep them are on a steep learning curve.

#6 Guest_fundulus_*

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Posted 30 December 2011 - 09:54 AM

In the narrow sense of the word mixing the two populations would produce hybrids. But I've never heard of anyone considering them to be different species, merely regional populations.