As a relatively new and growing sustainable solution to food production, salmon ocean farming has been the subject of intensive environmental assessments.

Feed Conversion

Ocean-farmed salmon represent a significant ecological advantage in terms of feed conversion, even when compared to other farmed animals. Ocean-farmed salmon feed comprises about 30% fishmeal, a name for the otherwise unused forage fish that is converted to food. Salmon feed represents nine percent of the world’s fishmeal consumption, otherwise used for fertilizer or livestock and poultry feed.

Production Efficiency

Salmon ocean farms are the most efficient way to reduce the ecological cost to natural forage populations. The forage fish used in salmon ocean farming feed are fast-growing and short-lived fish not generally used for human consumption. The Food & Agricultural Organization of the United Nations confirms that forage fish are not over-fished or depleted.

Every pound of salmon requires one-and-a-half pounds of fishmeal, a ratio far more efficient than other farmed animals.

The following chart illustrates this comparison:

Ratio of feed required to edible food produced (pounds)
Wild Salmon 10 : 1 or 15 : 1*
Beef 10 : 1
Pork 5 : 1
Chicken 2 : 1
Ocean-Farmed Salmon 1.5 : 1
*Varies depending on mortality rates and feeding

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