9572

• UCREFRP Catalog Number: 9572
• Author: Bestgen, K. R.
• Title: Interacting Effects of Physical and Biological Factors on Recruitment of Age-0 Colorado Squawfish.
• USFW Year: 1997.
• USFW - Doc Type: Fort Collins, CO.
• Copyright Material: NO

I then used information from laboratory experiments to evaluate effects of
physical and biotic processes that may explain intra-annual and annual recruitment
patterns of age-0 Colorado squawfish observed in the field: Field investigations (chapter
four) employed otolith analyses to estimate hatching dates and growth rates of wild
Colorado squawfish. This information was used to evaluate whether differential and size-
selective patterns of mortality were evident in cohorts of larvae hatched at different times
in the summers of 1991 and 1992. Finally, conclusions of field investigations were
evaluated with an individual-based model and along-term recruitment data set.
References
Bailey, K. M., and E. D. Houde. 1989. Predation on fish eggs and larvae of marine
fishes and the recruitment problem. Advancements in Marine Biology 25:1-83.
Bestgen, K. R. 1996. Growth, survival, and starvation resistance of Colorado squawfish
larvae. Environmental Biology of Fishes 46:197-209.
Bestgen, K. R. and M. A. Williams. 1994. Effects of fluctuating and constant
temperatures on early development and survival of Colorado squawfish.
Transactions of the American Fisheries Society 123:574-579.
Fogarty, M. J., M. P. Sissenwine, and E. B. Cohen. 1991. Recruitment variability and
the dynamics of exploited populations. Trends in Ecology and Evolution 6:241-
246.
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