Fig. 1: Distribution of North Atlantic herring stocks before and after their collapse in the late 1960s.
From: Kinship clustering within an ecologically diverse killer whale metapopulation
Distribution of Icelandic summer-spawning (ISS) herring is shown in red and Norwegian spring-spawning (NSS) herring in blue. a Distribution of NSS and ISS herring before stock collapse in the late 1960s (adapted from Dragesund et al. 1997; Jakobsson and Østvedt 1999; Røttingen 1990). b Distribution after stock collapse, NSS herring data shown for 1974–1986 (adapted from Dragesund et al. 1997) and ISS herring for 1978–1992 (adapted from Jakobsson and Stefànsson 1999; Óskarsson et al. 2009).
