Has there been a large-scale change in the climate of the North Pacific since the regime shift of 1976-77?

Introduction

• Definition of a regime shift
• what are the best indicators
• why is it important to define these events?

Review of 1976-77 event

Earlier regime shifts (N. Pac and elsewhere?)

Climatic indicators

• oceanic indices
• atmospheric indices

Biological indicators

• salmon
• pelagics
• groundfish
• crustaceans
• marine mammals
• birds

Discussion