An overview of the genetic techniques for improvement of fish and shellfish for aquaculture

Abstract

There are two ways in which an aquaculturist can increase his yields. The first is by environmental manipulations, such as the optimal use of fertilizers, feeds, improved water quality management etc. The second is by growing genetically improved stock. Any of the different genetic manipulation techniques available can be employed for producing genetically improved brood stock. In addition to the conventional quantitative genetic techniques like selection and breeding, modern tools like chromosomal engineering for production of polyploids, gynogenesis and androgenesis can also be employed.