Salinity preference in triploids
Triploid salmon, with 3 complete chromosome sets, are sterile. As such, their use in aquaculture would prevent escaped farmed fish from breeding with wild fish. Several studies have already highlighted that triploids can have different environmental (temperature) and nutritional requirements (phosphorus and histidine) than diploid salmon. In particular, triploids also show variable performance in seawater. As yet, no study has examined salinity preference in triploid salmon.
In this project, fish will experience low stress associated with handling and tagging, a sub sample of fish will be used for non-terminal gill tissue collection that is expected to induce some acute stress, but is not expected to have any long term effects, and some fish will be used to assess stress physiology. This information is relevant for understanding whether triploids will cope adequately with salinity fluctions that can occur in salmon farming.
Our project will determine whether triploids have a different salinity optima than diploids. This knowledge is essential for assessing triploid welfare in commercial aquaculture facilties.
We will use 1200 fish, the majority of which will experience standard husbandry conditions.
All experiments have been designed to mimimize the number of experimental animals while still providing useful scientific data.
In this project, fish will experience low stress associated with handling and tagging, a sub sample of fish will be used for non-terminal gill tissue collection that is expected to induce some acute stress, but is not expected to have any long term effects, and some fish will be used to assess stress physiology. This information is relevant for understanding whether triploids will cope adequately with salinity fluctions that can occur in salmon farming.
Our project will determine whether triploids have a different salinity optima than diploids. This knowledge is essential for assessing triploid welfare in commercial aquaculture facilties.
We will use 1200 fish, the majority of which will experience standard husbandry conditions.
All experiments have been designed to mimimize the number of experimental animals while still providing useful scientific data.