Understanding Eyed Salmon Eggs: Survival, Biosecurity & International Supply

Eyed-stage salmon eggs travel better than any other developmental phase. Once the embryo's eyes are visible through the shell, the egg is far more tolerant to mechanical shock, temperature drift and handling — the three biggest killers during air freight. This piece explains why the eyed window matters, how biosecurity screening (SPF certification, iodophor disinfection, sealed insulated boxes at 4 °C) protects receiving hatcheries, and what to look for when auditing an international supplier.