Geographic Variant Morphology in S. rhombeus

Trigga

Jack Dempsey
MFK Member
Feb 10, 2009
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Show me one piranha cross breed.. It's never been documented to happen you can't have reasearched in the right place if that's the info your getting. rhombeus are some of the most widely spread serrasalmus species, found in almost every country piranha are found.
 

SharkAquarium

Candiru
MFK Member
relax, Trig. There is very little black and white here, and let's not start name calling because of a little confusion. I believe everyone should be entitled to their opinion, whether right or wrong (without out being attacked or insulted).

I would agree with you that piranha crosses, to my knowledge, have not been documented; BUT I would not agree with you that 'rhombeus' is found 'in every country piranha are found'. It is generally agreed that 'rhombeus', as used on these species location lists, are NOT one species; rather a complex of species yet to be split out, and identified.
 

caribemob

Piranha
MFK Member
Feb 24, 2008
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SharkAquarium;3416738; said:
relax, Trig. There is very little black and white here, and let's not start name calling because of a little confusion. I believe everyone should be entitled to their opinion, whether right or wrong (without out being attacked or insulted).

I would agree with you that piranha crosses, to my knowledge, have not been documented; BUT I would not agree with you that 'rhombeus' is found 'in every country piranha are found'. It is generally agreed that 'rhombeus', as used on these species location lists, are NOT one species; rather a complex of species yet to be split out, and identified.
yeah i agree it's the rhombeus complex, thats why rhom's come in so many types, colors now like ones with red anal fins and yellow gill plates
 

Diogenes

Fire Eel
MFK Member
Oct 9, 2008
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DaxD;3409324; said:
I have done a lot of research on this species and the truth is that a lot of people do not know what they are really buying. A true serrasalmus Rhombeus can only be proved that it is a true one by a DNA test. There has been so many cross breeding in the wild that it is hard to tell if you really do have a true serrasalmus rhombeus. I kind of have doubts on people that can identify them in there sleep. I also understand a lot of people think they know piranha and they really don't. Just by looking at a piranha does not prove that it really is a true serrasalmus rhombeus. Good luck.
ok I see what you're saying. There is a rhom complex, I see what you mean. When I said there were people on forums that could visually ID rhoms, I meant ID fish that are members of that complex with varying degrees of accuracy depending on the quality of the photo, etc. Separating species from the complex probably would require genetics which is why no one has conducted such a study and the rhom complex remains...complex.

The list of countries that I gave in the previous post is taken from OPEFE as you can see in the links.
 

Diogenes

Fire Eel
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Oct 9, 2008
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caribemob;3417082; said:
yeah i agree it's the rhombeus complex, thats why rhom's come in so many types, colors now like ones with red anal fins and yellow gill plates
I think color of life can vary without speciation into new species.
 

Trigga

Jack Dempsey
MFK Member
Feb 10, 2009
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SharkAquarium;3416738; said:
relax, Trig. There is very little black and white here, and let's not start name calling because of a little confusion. I believe everyone should be entitled to their opinion, whether right or wrong (without out being attacked or insulted).

I would agree with you that piranha crosses, to my knowledge, have not been documented; BUT I would not agree with you that 'rhombeus' is found 'in every country piranha are found'. It is generally agreed that 'rhombeus', as used on these species location lists, are NOT one species; rather a complex of species yet to be split out, and identified.
no worries g no name calling here I was just questioning his source of reasearch

also I said almost every country not every country that has piranha has rhombeus.

I agree with the whole rhombeus complex thing too and I think my Bolivian rhombeus is probably a member of that complex. Even so I don't think that different species inside the complex breed of course this isn't based off any reasearch but just my opinion... There are other fish complexes ( many African cichlids) and they don't naturally interbreed so I dont see piranha doing so either.
 

jp80911

Dovii
MFK Member
Mar 7, 2008
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caribemob;3423870; said:
SO DO ALL DIAMONDS COME FROM BRAZIL
I thought they are all from Peru...could be wrong
 
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