The Chronical Herald covers a public presentation by CCNB’s Science Advisor Inka Milewski concerning the recovery of the sea-bottom at an abandoned salmon farm in Shelburne Harbour, NS.
“It’s not a good news story, because we don’t have recovery,” Milewski said this week in Shelburne. …
“It’s the organic material, primarily the feces of the fish and the uneaten food that settles on the bottom and begins this decomposition process, that results in the production of these sulphides.”
Copper and zinc were also found in bottom sludge at higher levels than expected.
Feed is a probable source and some netting is likely treated with a copper-based solution to help prevent seaweed from growing on the ropes and gear, Milewski said.
Full article here.