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Wild salmon off the B.C. coast are swimming metres away from a stream of blood pouring into the water — the byproduct of farmed-salmon being processed at Brown's Bay Packing Company, near Campbell River, B.C.

Underwater videographer and naturalist Tavish Campbell filmed fish blood being released into B.C. waters. He says he wasn't prepared "for how shocking it was to see the blood flowing out" — even though he knew about it for some time.

The dive to reach the end of the pipe was 90-feet deep, meaning Campbell was in complete darkness.

"As I approach the pipe, my lights illuminated just this huge billowing cloud of blood being released into the bay and in that blood, you could see thousands of shimmering scales kind of flowing up intothe water column," Campbell tells The Current's Anna Maria Tremonti.

Tavish Campbell says this is important to him because he cares about wild salmon. 'I've grown up and continue to live in the Discovery Islands,' he says. (Matt Casselman)

On the day this dive was filmed, Campbell says the Brown's Bay Packing Company was processing Atlantic-farmed salmon from a farm in the Discovery Islands. The processing plant says they disinfect the effluent before it's released into the water.

I was shocked at the carelessness of government to allow this amount of blood from farmed salmon which we know are infected with several viruses. - Alexandra Morton, independent scientist and activist

To make sure this wasn't an isolated incident, Campbell did another dive in Tofino near Lions Gate Fisheries. He says he discovered