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Limit the abstract to 400 words and submit using Microsoft Word according to the sample format shown below.
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Tables and figures are not included in the abstract.
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Indicate the intended topic session (and sub-session).
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Specify the presenter with an asterisk (*). Please use full first and last names for each author (not just first initial).
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State the preference for (1) oral (in-person), (2) virtual presentation (via Zoom), (3) poster, or (4) oral (in-person), but virtual or poster presentations are acceptable. The Science Committee reserves the right to change the presentation from an oral/virtual to a poster presentation depending on time constraints.
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The abstract should begin with a clear statement of the problem or objectives, give a brief summary of methods and the major results, and end with a substantial conclusion. Do not use vague statements, such as “results will be discussed.”
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Selected abstracts will be included in the program and abstract booklet.
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Authors are responsible for clarity and accuracy of the information presented in the abstracts, as they may not be edited during the process of compiling the abstract booklet.
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Topic Session: Topic 1. Pacific Salmon and Steelhead Trout in a Changing North Pacific Ocean (Forward Action) (1-3. Pacific Salmon Critical Periods, Climate and Ocean Changes).
Preferred Presentation Format: (1) oral
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Late ocean entry timing provides resilience to populations of Chinook and sockeye salmon in the Fraser River |
| Authors: |
Richard J. Beamish*, Ruston Sweeting, and Chrys Neville
Pacific Biological Station, Fisheries and Oceans Canada, 3190 Hammond Bay Rd., Nanaimo, B.C., V9T 6N7, Canada (*Email: richard.beamish@xxxx.ca; Tel: 1-250-756-xxxx; Fax: 1-250-756-xxxx)
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Abstract: Most sockeye salmon from the Fraser River enter the Strait of Georgia by early May and most Chinook salmon by mid May. There are populations of Chinook salmon from the South
Thompson River area and one population of sockeye salmon from the Harrison River that enter the Strait of
Georgia almost two months later. The productivity of these species with a late ocean entry life history
strategy has been exceptional in recent years. The reasons for the recent improved productivity of the late ocean-entry life history type are not known, but the success identifies the importance of a temporal spread in ocean entry timing of the aggregate of populations. The recent success also reminds us that ocean entry timing of the aggregate of populations has evolved to be able to adapt to long-term changes in the timing of prey populations in the early marine period.