Agriculture and Environment: Salmon

Environmental Impacts of Production: Mort Disposal

The disposal of salmon that die before harvest (morts) has both environmental and health implications.

Approximately 20% of salmon die during grow-out, some of them from diseases that could potentially be spread fro the improper disposal of morts.


A variety of disposal methods is used; the principal ones are landfilling, composting, and ensilage (a liquification of the morts that is then used in animal feed or fertiliser).

Some companies dump morts into the ocean, where the chemicals ingested by the salmon before death, as well as any diseases that may be present, are released into the environment.

Credits

Extracts from "World Agriculture & Environment" by Jason Clay - buy the book online from Island Press

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