Our original symposium planned for the annual AFS meeting in Seattle has been
combined to form a joint “symposium” titled:
Evolutionary ecology, plasticity, and adaptability of fish life histories:
A symposium in two parts
This symposium is scheduled for Wednesday, 7 September 2011. Our original planned
symposium has become Part II of this symposium:
“Evidence and consequences of increased variability in fish populations”
Chairs: Douglas Vaughan, Dick Beamish and Steve Cadrin
Description: Investigations of climate effects on fisheries are typically focused on
unidirectional changes in productivity (e.g., decreased recruitment, geographic shifts),
but many fishery resources are exhibiting recent increases in variability associated with
climate, making forecasts more difficult. This session will include presentations that
identify changes in the population ecology of fishes that have intensified in recent years.
Examples will be from freshwater and marine populations. Papers will also include
methods to analyze time series that contain periods of increased variability. Presenters
are encouraged to identify the management consequences of the increased variability.
The reasons for the increased variability may be a changing climate or fishing or both.
In both cases, the species is adapting to these changes according to its life history
strategy. Papers will identify how a particular life history strategy is naturally adapted to
respond to increased variability. Papers presented at this session may be incorporated
into a book to be published by AFS.
Format and time requirement: The format will be seven 15-minute oral presentations,
followed by a brief panel discussion.
Sponsor: American Institute of Fishery Research Biologists
List of presentations for Part II:
Presenter
Steve Cadrin &
Jeff Hutchings
Brian Rothschild
Dick Beamish
Steve Cadrin
Ed Roseman
Piera Carpi
Franz Mueter
Anne Hollowed
Panelists
Titles
Introductions to Symposium, Parts I & II
Format
Presentation
Symposium, Part I
Presentations Starting at
8:15 AM
Presentation 2:30 PM
Variability in abundance of fish stocks
on the continental shelf of the Northwest
Atlantic Ocean
Extreme variability in the production of
Pacific salmon and herring in the Strait
of Georgia in 2007 and 2008
Evidence and consequences of
increased variability in fish populations
Diets of angler-caught predators in Lake
Huron, 2009-2010
Effects of climate on Adriatic fish stocks
Can rising variance predict sudden
shifts in populations and ecosystems?
A test using Alaskan crustacean data
An evaluation of the variability of
groundfish populations off the coast of
Alaska
Consequences of increased variability in
fish populations
Time
8:00 AM
Presentation
2:45 PM
Presentation
3:00 PM
(30 min)
3:30 PM
Presentation
3:45 PM
Presentation
Presentation
4:00 PM
4:15 PM
Presentation
4:30 PM
Panel
Discussion
4:45 PM
(30 min)