Genetic Variation of Return Date in a Population of Pink Salmon: A Consequence of Fluctuating Environment or Dispersive Selection?
- Authors: W.W. Smoker, A.J. Gharrett, and M.S. Stekoll
- Pub. no.: RP-00-02
- Year: 1998
- Price: Single copies free
Description
The date anadromous salmon return to their home stream—a trait closely related to fitness—has high genetic variability in this population. The authors suggest the variability is maintained by the fluctuating environment to which Auke Creek pink salmon must continually adapt, or by dispersive selection caused by redd superimposition. In either case, in this and other salmon populations, rational management must preserve variability of return timing if the fitness of populations is to be conserved. For full text see http://www.adfg.state.ak.us/pubs/afrb/vol5_n1/smokv5n1.pdf. Alaska Fishery Research Bulletin 5:46-54.
