Climatic forcing of zooplankton dynamics is stronger during low densities of planktivorous fish

We analyze interannual variation in zooplankton biomass in the southwestern Barents Sea in spring (May) and summer (June‐July) 1959–1993. Using a threshold modeling approach, we quantify spatial, climatic, and across‐season autoregressive effects under contrasting regimes of low and high densities of planktivorous fish (capelin and herring). Main findings: (1) zooplankton biomass is mainly influenced by capelin feeding, first in the offshore...