Question about hybrid rays

[Duckman77]

So now that so many people are captive breeding rays I am seeing many hybrid crosses (mantilla x motoro, leo x motoro, etc). By the definition of a species these hybrids should be sterile. Is this the case? Has anyone had success breeding hybrid rays?

 

[stingray man]

I dont know about hybridXhybrid but i know there has been HybridXpure

 

[csx4236]

All these rays are same species and all hybrids are able to breed and reproduce.

 

[DB junkie]

Not hybrids. They are crossbreads. If DNA can't seperate them they might be more closely related then people. Different races don't have any problems with being sterile.

Just my 2 pennies.

 

[African_Fever]

The hybrids being sterile theory depends on which species definition you use, and with fish in general you have to be careful because if producing viable offspring classified fish as a single species, then there would only be one cichlid species in Lake Malawi (and I believe at last count there was over 1200, more than anywhere else in the world).

 

[Zoodiver]

Yeah, the set 'species' within Potamotrygon have to be defined better. These cross bred/hybrid rays are not sterile by any means.

 

[Kamisan]

Personally, I still prefer pure breed rays even it's just a plain motoro.

A lesson learnt from Asian Arowana industry, after around 50 years of captive breeding done by commercial farms, the Asian Arowana's purity in term of bloodlineage is at stake (especially the golden series). This is mainly due to multi-layer crossbreeding exercises that seem to benefit them in short term previously BUT effecting the product value in long run (currently). One example, currently a pure breed Malaysian Golden Arowana cost easily 5 times compared to those crossbred Golden Arowanas.
The cycle has come when people get bored with Crossbred Arowanas and start looking back for pure breed but too bad, only a few Arowana farms having those pure breed breeding stocks. Just a lesson to learn though.

Buying / keeping sp rays... to each his own, it's your call.

 

[armac]

I believe some of the hybrids were put on the market because the breeders found them easier to breed than pure bloods. If your leo would not mate with another leo, throw in a pearl, you got babies and people bought them. Now the same hybrids are not doing so well in the "secondary market" I have seen people trying to sell the hybrids for more than they paid, with little success.

I do not know if the hybrids will be viable to spawn, but that is the reason the hybrids proliferated in the beginning, in my opinon.

 

[Duckman77]

All these rays are same species and all hybrids are able to breed and reproduce.

So the Potamotrygon are all subspecies of each other? And of course you meant all hybrid stingrays are able to breed and reproduce.

 

[Duckman77]

The hybrids being sterile theory depends on which species definition you use, and with fish in general you have to be careful because if producing viable offspring classified fish as a single species, then there would only be one cichlid species in Lake Malawi (and I believe at last count there was over 1200, more than anywhere else in the world).

This is the definition I use:

A species is defined as a group of organisms capable of interbreeding and producing fertile offspring.