Let's not forget that the herring spawn also provides a vast source of food for young salmon coming out of the rivers and streams. Nature for thousands of years have timed the emergence of these smolts at the same time as the herring spawn. The milk white herring spawns could stretch for miles up and down the island provided tonnes of protein biomas for these smolts to eat. With destruction of habitat and over fishing for both salmon and particularily for herring, especially on the east side of the island there are much fewer big herring spawns like this to feed these young slamon. My father in law has been a streamkeeper for almost 20 years. After restoring over a half dozen streams he says he is about to give up. He says all the $ and effort that goes to restore these streams is wasted as the young smolts just end up starving as there is very little for them to eat. If we want abundant salmon stocks we need to have abundant herring stocks. I realize that there are other factors that impact salmon survival rates, that why we need a multi-faceted approach to restoring wild salmon (i.e. restoring habitat, putting fish farms on land, reducing water pollution, and lower harvesting rates, etc.). When I grew up in Campbell River, no one ever bought frozen bait. If you fished bait you went out and raked some fresh before fishing. When was the last time people regularily did that in CR, or many other places for that matter. We can't continue to allow the overharvesting the foundational food sources in the ocean (e.g. plankton, krill, baitfish and herring, or the whole ecosytem starts to collapse on it self. My 2 bits.