Presented at Atlantic Canada Workshop on Methods for the Production of non-maturing Salmon.
The chronological development of the means of production of all-female, all-triploid Atlantic salmon stocks in Scotland using pressure is reviewed.
Their relative performance in both fresh and salt water is described. Triploids perform similarly in fresh water to diploids. In sea water, Triploids grow less well for weight on length than maturing salmon, but in similar manner to non maturing fish. Because they continue to grow steadily in length throughout their lives, they tend to have characteristically long and lean appearance and are more like wild animals in their length-weight relationship.
The existing information on the reproductive potential of Atlantic Salmon female Triploids is presented. Triploid, all-female stock will be of benefit both for commercial reasons and because they will minimize the effects of genetic transfer that might otherwise occur via accidental releases of farmed animals.
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