From the Marineland Blog:
Marineland Canada has received preliminary necropsy results on, Gia, a beluga whale who has called Marineland home since birth.
Gia passed away suddenly at Marineland. Up until her passing, Gia appeared happy, healthy and a well-adjusted member of her pod. Gia was taken care of by a dedicated marine mammal care team that have given hours of care to her each day of her life.
Complete necropsy results will be provided when received.