[APD] RE: [Killietalk] ] Keeping killy species together

[Wright Huntley <whuntley at verizon_net>]

Chris wrote:

> Wright,
> Are you saying that you don't think these fish will hybridize?  They are
> all co generic.  

I doubt that, but taxonomists and killies don't always agree. :-) 
Hybrids across so-called "generic" boundaries are pretty common (e.g., 
*Fp.* and *Fundulasoma*).

A *Chromaphyosemion* like BIT is pretty unlikely to cross with an 
*Aphyosemion* like EXI, which is a member of the *striatum* group, but 
again, that's just my humble opinion (i.e., guess). [OTOH, I bet EXI and 
PRI would get together in an instant! :-)]

I spent several years studying the *striatum* group, and (with the 
exception of *Fp. oeseri*) they are so similar in behaviour, habitats 
and physiology that they might be considered an extended species, by 
older definitions. Bet they all would hybridize, probably with some fertile.

I don't recall the reference but I can remember reading
> about Fp gardneri and A. australe hybridizing.  

P. 100 of ROTOW.

> I never keep Aphyosemion
> species together or mix Aphyosemion and Fundulopanchax.  I'm more
> careful than many people but suggesting that BIT and SPL will not
> hybridize seems counter intuitive, no?

I didn't think I said that, but no, they likely won't. SPL is a 
primitive, very different species, closely related to BAT, but not a 
likely candidate for mating with AUS or PRI, which was the original 
question, as I read it.


Wright

> Hi Wright, how much of a risk (of hybridizing) would the following combo
> be?
> > Ap BIT Lagos / Ap Exigoideum 'Ngoudoufola'.
> > Chromaphy SPL 'Moliwe' / Ap australe or Ap PRI 'Kanda'.
> > These are not raised together, but just a thought in case I run out of
> tank space. TIA for your opinions.
>
> None, IMO. Please be aware that most killifish ignore my opinions, most 
> of the time. :-)


--
Wright Huntley - Rt. 001 Box K36, Bishop CA 93514 - whuntley at verizon_net
                    760 872-3995

"Outsourcing" is condemned for sending a few American jobs overseas.
What is the appeal, then, of "outsourcing" our entire national security?
[The exact same politicians are insisting that it be handled only by the
UN, and never by our own resources.]       -- WH


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