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Genetic and morphometric differences demonstrate fine-scale population substructure of the yellow perch Perca flavescens: need for redefined management units

Journal of Fish Biology

By:
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DOI: 10.1111/jfb.12129

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Abstract

Whole-body morphometrics and 15 nuclear DNA microsatellite loci were analysed for 158 Perca flavescens collected during the spawning season from four spawning locations in central Lake Erie, two along the northern shore and two along the southern shore, to evaluate fine-scale variation (spanning 17-94‚ÄČkm). Results showed significant morphological and genetic differences among P. flavescens from the four locations. The magnitudes of differences were unrelated to geographic distance, demonstrating spatially heterogeneous levels of genetic divergence. These results linked morphometric and genetic variation, showing a discontinuity of scale between currently defined management units and population structure of P. flavescens in Lake Erie, and support that P. flavescens might exist as one or more metapopulations. Findings demonstrate the value of using complementary techniques for evaluating population structure.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Genetic and morphometric differences demonstrate fine-scale population substructure of the yellow perch Perca flavescens: need for redefined management units
Series title:
Journal of Fish Biology
DOI:
10.1111/jfb.12129
Volume
82
Issue:
6
Year Published:
2013
Language:
English
Publisher:
Wiley
Contributing office(s):
Great Lakes Science Center
Description:
16 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Fish Biology
First page:
2015
Last page:
2030
Number of Pages:
16
Country:
Canada;United States
Other Geospatial:
Lake Erie