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Updated: Jun 1, 2026

Laboratory Protocol for Genetic Gut Content Analyses of Aquatic Macroinvertebrates Using Group-specific rDNA Primers
Published on: October 5, 2017
Microsatellite loci for the invasive colonial hydrozoan Cordylophora caspia
Nancy A Schable1, Ashley M Kuenzi, Carrie A Drake
1Dynamac Corporation, c/o US EPA, Cincinnati, OH 45268, USA; Independent Contractor to US EPA, Cincinnati, OH 45248, USA; Biology Department, Wheaton College, Wheaton, IL 60187-5593, USA; National Exposure Research Laboratory, Molecular Ecology Research Branch, US EPA, Cincinnati, OH 45268, USA.
Abstract:
Cordylophora caspia, a colonial hydrozoan native to the Ponto-Caspian region, has become a common invader of both fresh and brackish water ecosystems of North America and Europe. We describe 11 polymorphic microsatellite loci for this species. Preliminary analyses indicate that population substructure may contribute to departures from Hardy-Weinberg equilibrium. In addition, new loci failed to consistently amplify Cordylophora samples known to be genetically distant from those utilized in this study, indicating the presence of cryptic diversity within the taxon.

