Fig. 3: Maps of the sea level pressure (SLP) anomalies over the North Atlantic for 8 different periods.
From: Environmental control on the productivity of a heavily fished ecosystem

b 1951–1971, (i) 1972–1978, (d) 1979–1981, (k) 1982–1998, (f) 1999–2006, (m) 2007–2009, (h) 2010–2013 and (o) 2014–2017). Each of these periods correspond to the climate phases identified in Fig. 2, recalled in a side panel showing the NLCI (gray bars, unitless) with orange/blue shades showing the warm/cold phase of interest (subfigures a, j, c, l, e, n, g and p, respectively). Anomalies in the annual primary production above the NW Atlantic and Calanus finmarchicus density on the NL shelves are shown in the top of each SLP panel (where available). The trends in capelin biomass, multi-species bottom trawl survey biomass density, and groundfish biomass are indicated in the bottom of SLP subfigures (see legend). The anomalies and trends have been highlighted in orange, blue and gray for positive, negative and non-significant, respectively.