This study identified δ15N stable isotope ratios as a robust tracer for fishmeal inclusion in aquaculture feeds. δ15N and δ13C values from fish muscle samples derived from feeding trials with seven species (n = 3–5 fish per diet group) were evaluated (+/−0.1‰ for both δ15N and δ13C; ~1% relative to % N and % C) to verify whether the presence or absence of fishmeal (FM) in feeds could be detected. C and N isotopic data were als...

Research designed to reduce or eliminate fishmeal (FM) in trout feeds, for reasons that have changed over time, has been conducted for over a century. Reducing the dependency on FM remains one of the most urgent issues facing the industry. Feed represents the most expensive operational cost of fed aquaculture, and is responsible for ecosystem disturbance following nutrient discharges. Rainbow trout, the second most farmed salm...

Post-smolt Atlantic salmon were fed control (C), plant protein- (PP), and animal protein (AP)-based diets over a 90-day period. At trial start, the outline shape variation in the salmon body was recorded using two-dimensional Cartesian coordinates of a combination of 12 landmarks (LM) and three semi-landmarks from each of the 48 fish. The identical landmarks were then assessed at trial end for the differing dietary treatments....

The future growth and sustainability of fed aquaculture, and especially that for carnivorous species, will be highly dependent upon the industry stepping away from its reliance upon forage fishes as major feed ingredients. With this goal in mind, the F3 Feed Innovation Network—a consortium of researchers; businesses, including feed manufacturers and ingredient providers; NGOs; and others—energizes industry to adopt novel and p...