Tissue and plasma enzyme activities and chemical analytes in Golden Trevally from a public aquarium.

Objective: Veterinary care of aquatic species, particularly fish, is limited by a lack of knowledge regarding their unique physiology. Tissue enzyme activities measured in plasma are used for assessing function and potential damage to specific organs and tracking disease progression in live animals. The objective of this study was to identify tissue(s) of origin and plasma concentrations for specific enzymes in healthy Golden Trevally Gnathanodon speciosus.