Geographic Patterns in Genetic and Life History Variation in Pumpkinseed Populations from Four East-Central Ontario Watersheds
- 1 May 1997
- journal article
- Published by Oxford University Press (OUP) in North American Journal of Fisheries Management
- Vol. 17 (2) , 543-556
- https://doi.org/10.1577/1548-8675(1997)017<0543:gpigal>2.3.co;2
Abstract
We examined the geographic distribution of biochemical genetic and life history characteristics of 16 populations of pumpkinseed Lepomis gibbosus within four east-central Ontario watersheds to determine (1) if populations within watersheds were more alike for either of these traits than populations among watersheds, (2) if the distribution of genetic and life history characteristics among watersheds coincided with each other, and (3) if the distribution of genetic and life history characteristics among watersheds showed some geographic pattern. Pumpkinseeds collected early in the reproductive season in the years 1990–1993 were assessed for reproductive maturity, gonadosomatic index (females only), and juvenile growth. Allele frequencies at six polymorphic loci were determined by protein electrophoresis. Cluster analysis based upon genetic distance coefficients showed three distinct groups, one containing populations from the Rideau River watershed, a second containing populations from the Crowe R...Keywords
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