ABSTRACT
The development of technologies for introducing new genetic information into fish has been realized over the past decade, allowing both investigations of gene function and providing altered phenotypes for enhancing aquaculture production of food fish. In salmonid aquaculture, production efficiency is very important for the economic viability of the operation. Several other methods of gene transfer have been evaluated in salmonids, primarily to circumvent the technical demands and time requirements needed for microinjection of large numbers of zygotes. From the research conducted to date, it is clear that transgenic salmonids can be created with modified phenotypes for application in aquaculture. For the implementation of transgenic salmonids into commercial aquaculture, careful evaluation of new strains will be required to show that other pleiotropic effects do not cause unexpected effects on performance.
