past decade, a growing network of chronologies has been developed
from annual growth-increment widths in fish and bivalves in the North
Pacific. These chronologies have been integrated across species, marine
regions, and other biological time-series to develop indicators and identify
climate drivers of productivity and functioning at the ecosystem level.
For the upcoming workshop, representatives of major
fisheries laboratories will assemble to learn basic fundamentals chronology-development techniques
and, most importantly, identify the most promising species and collections that
would be suitable for such an approach in the North Atlantic, North Sea,
Baltic, and Mediterranean regions.
A Pacific ocean perch (Sebastes alutus) otolith from the eastern Bering Sea; red dots denote decades. Also shown are increment widths for 30 Pacific ocean perch individuals after age effects have been removed (grey lines) as well as the mean growth chronology (heavy black line).