It is well known that current equilibrium-based models fall short as predictive descriptions of
natural ecosystems, and particularly of fisheries systems that exhibit nonlinear dynamics. For …

Population diversity can reduce temporal variability in aggregate population abundances in
a process known as the portfolio effect. Portfolio effects may weaken, however, due to …

Trawl studies from 1998 to 2009 indicated that juvenile Pacific salmon Oncorhynchus spp.
and Pacific herring Clupea pallasii represented 98% of the fish in the surface waters of the …

The planet is warming. Earth's average land-ocean temperature has risen by 1 C over the
last century, and the last five years were the warmest on record (Morice et al. 2012 …

Commercial salmon harvests have declined dramatically for all Pacific salmon species in
British Columbia, mainly over the period 1995–2000. Much of this decline is attributable to …

Fish biodiversity sustains the resilience and productivity of fisheries, yet this biodiversity can
be threatened by overharvest and depletion in mixed‐stock fisheries. Thus, the biodiversity …

Background Concern about the decline of wild salmon has attracted the attention of the
International Union for the Conservation of Nature (IUCN). The IUCN applies quantitative …

Abstract Many populations of Sockeye Salmon Oncorhynchus nerka in the eastern North
Pacific Ocean experienced significant productivity declines that began about 1990, but there …

The commercially, recreationally, and culturally important Fraser River Sockeye Salmon
Oncorhynchus nerka has experienced a productivity decline over the past 3 decades, which …

Population diversity can stabilize ecological dynamics and increase resilience to future
environmental change. In exploited systems, however, management goals to preserve …