Advances in Tripoidy.

This article explores advances in methods and techniques for inducing triploidy in aquaculture. It is possible to produce triploid offspring through the manipulation of the gametes of several fish and shellfish gametes. The bioeconomics of triploidy, from a production perspective, relies on the relationship between the natural life history of an organism and the production cycle in question. A 2006 study found that there is no growth difference between diploid and triploid blacklip abalone during a 50-day grow-out period. An approach to inducing triploidy for finfish involves applying thermal, pressure or chemical shocks to newly-fertilized eggs, which will disrupt the mechanisms that would otherwise force the second polar body out of the egg.