Figure 6
From: Ecosystem response persists after a prolonged marine heatwave
Long-term trends (1993–2019; a, d through 2018) in (a) the abundance of warm water associated copepod species in the Gulf of Alaska, (b) herring and herring-dependent predators in Prince William Sound, (c) capelin and sand lance availability to marine birds and reproductive success of kittiwakes foraging from Middleton Island, and (d) ex-vessel revenue for sockeye salmon and combined for the three most valuable groundfish species. Grey shading represents the 2014–2016 northeast Pacific marine heatwave. Values are z-score standardizations so the y-axes are unitless.
