Long-chain omega-3 fatty acids are essential nutrients for vertebrates including fish and humans, but are a finite resource.
Supra-physiological levels are required to maintain high nutritional quality of farmed products.
Aquaculture an important role in the efficient use of long-chain omega-3 and their transfer to human consumers.
Entirely new sources of long-chain omega-3 fatty acids are required and transgenic oilseed crops represent viable option.