h a l f b a k e r y
Not so much a thought experiment as a single neuron misfire.
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There's an Atlantic Salmon relative that is able to eat mollusks, using its gizzard. The Gillaroo, Salmo stomachicus, eats mostly snails in Lough Melvin, Eire. Crossed with Salmo salar, the Atlantic salmon, perhaps the offspring could be selected to eat Zebra mussels,(Dreissena polymorpha) or Quagga
mussels (Dreissena bugensis), where invasive in Atlantic salmon native range. The hybrid salmon would be halfway native in such ranges, being half Atlantic salmon.
Perhaps this hybrid could be genetically modified to digest organic toxins and excrete inorganic ones that might otherwise bio-accumulate from the oft-polluted Zebra and Quagga mussels, yielding purified salmon for the table.
Salmo stomachicus [briancady413, Nov 30 2015]
Dreissena polymorpha [briancady413, Nov 30 2015]
Dreissena bugensis [briancady413, Nov 30 2015]
||All good ([+]) up to //Perhaps this hybrid could be
genetically modified//, which falls under the "GM
||I can see that having a shell would offer
zebras protection from lions. Presumably then
we'd end up with lions working out how to use
||No, they'd just cook them in their shells by putting them under a gorilla ....
||Rather "WIBNI / GM Magic" here, because Nature has already
experimented with millions of creatures mixing genes having
sex in the lakes for many generations, and any species that
got a taste for zebra mussels would have a buffet & thrive.
||The only new thing here might be to seed the lake with a
few new species that were not yet native, to have them
have sex & multiply. But, isn't that exactly how we get in
this mess in the first place? Invasive species don't often end