Human activity has been reducing or impacting herring spawning grounds for a long time. The construction of docks and harbours, houses, roads have reduced spawning habitat in a substantial way. Industrial activities like shipping, aquaculture, log sorting impacts spawning grounds directly and for longer periods of time. Many traditional spawning grounds have lost their function successively.

Water front in Nanaimo, BC. Nanaimo used to be one of THE herring spawning grounds on the coast.

Monday, March 24, 2014