Genetically-engineered AquAdvantage salmon
Genetically-engineered AquAdvantage salmon has received approval for sale in the United States as food, without special labeling.
To make it grow and mature faster, it uses a “genetic promoter” from the “ocean pout,” a tameh fish.
Does this present a halachic problem for the consumer?
In the Rav’s opinion there is no concern with this fish. Ultimately it is a kosher fish with kosher simanim, which is the criteria for determining the status of the fish.
An extensive teshuva on the issue is be”h forthcoming.