About 180 miles off the coast of Haida Gawaii, an archipelago on the western shores of British Columbia, Canada, the Haida Salmon Restoration Corporation decided to dump 110 tons of an iron-based compound into the Pacific waters, says the CBC.

The dump was part of a $2 million bid to drive a surge in salmon populations and is currently under investigation by Environment Canada’s enforcement branch.

Read more: at the Smithsonian site