Ensuring smolt adapt successfully after transfer to marine sites is notoriously difficult, but Virginia Iglesias of the Fish Vet Group offers some valuable insights into failed smolt syndrome and how to minimise it.
New research has revealed that lumpfish exposed to live prey and frozen sea lice prior to transfer to marine sites perform better as cleaner fish once stocked in salmon pens.
A new report shows that ensuring sufficient levels of zinc and long chain omega-3 fatty acids in salmon feed can help improve the gut and gill health of salmon and reduce losses when smolts are transferred to marine sites.
Mowi farm technician Clara McGhee notes how incremental environmental changes - as can be observed on a seasonal basis from a salmon farm - are also having a wider, and more worrying, impact on the health of wild salmon across much of their range.