Figure 5. Schematic of the pelagic food webs within and on the shelf outside Prince William Sound, Alaska with herring, salmon (esp. juveniles), pollock, zooplankton (ZP), birds and mammals. Solid narrow arrows show trophic pathways between species. Dashed narrow arrows show cannibalism. Fat black arrow shows emmigration of juvenile salmon from PWS to the shelf. Fat gray arrows show exchanges of zooplankton between the deep ocean, shelf and PWS.