February 15, 2018 — Fishmeal and fish oil are and will continue to be efficient and sustainable aquaculture feed components if they are responsibly sourced and used strategically, while not using them could compromise fish health and lead to unnecessary waste, IFFO, The Marine Ingredients Organisation has stressed.
In response to an article published by National Geographic, titled “Why salmon eating insects instead of fish is better for environment,” which discusses fishmeal and fish oil replacement in salmon feed, Andrew Mallison, director general of IFFO, said the total replacement of fishmeal and fish oil, as called for in the article, was unjustified and damaging to the fish farming industry.
Mallison said that while IFFO agreed with the need for additional feed options in aquaculture to ensure the growth of “this vital industry,” the article quoted information that was both out-of-date and incorrect.
The improvement in management of wild-capture fisheries has ensured that in recent years stocks are in fact steady and not declining, according to the FAO’s State of World Fisheries and Aquaculture 2016, he said.
“While catches of some small pelagic species used to produce fishmeal and fish oil are volatile, this is due to environmental fluctuation with permitted catches being varied in line with biomass abundance to protect the stocks. These small pelagic species are often not as palatable, spoil quickly and are less popular compared to other local fish, but can be turned into highly nutritious feed,” Mallison said. “Further evidence of sustainability in the production of marine ingredients is that over 45 percent of the global production of fishmeal and fish oil is now independently certified as being safe and environmentally responsible, including in its sourcing of raw materials, a figure that far exceeds any other source of feed ingredient.”
Regarding the efficiency of the use of fishmeal and fish oil, Mallison highlighted that the latest FIFO (fish in: fish out ratios) using 2015 data showed a conversion rate of one kilogram of wild fish used in feed creates 1.22 kilograms of farmed salmon, demonstrating that farmed salmon now produce globally more consumable protein than is used in feed.
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