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DNA barcoding has revealed unrecognized species in several animal groups. In this study we have employed DNA barcoding to examine Hyalella, a taxonomically difficult genus of amphipod crustaceans,… Expand
Abstract The gammarid amphipod Echinogammarus ischnus was found to be widespread from the south end of Lake Huron, downstream in the St. Clair River and across Lake Erie to the Niagara River outlet… Expand
Amphipods are brooding peracaridan crustaceans whose young undergo direct development, with no independent larval dispersal stage. Most species are epibenthic, benthic, or subterranean. There are… Expand
The predatory cladoceran Cercopagis pengoihas extended its range over the past decade from the Ponto-Caspian basin into the Baltic Sea and the Laurentian Great Lakes. This study employs mitochondrial… Expand
Molecular studies have enlightened our understanding of freshwater zooplankton biogeography, yet questions remain regarding the scale and commonality of geographic speciation. Here, we present a… Expand
Many benthic freshwater invertebrates are strong candidates for diversification as a result of their short gen - eration times, the divergent selection pressures that they encounter across habitat… Expand
Daphnia ambigua, one of the most broadly distributed members of its genus, occurs in Europe as well as in North and South America. This investigation examines diversity in two mitochondrial genes,… Expand
Aim To investigate the degree of phylogeographical divergence within pygmy whitefish (Prosopium coulterii) and to test hypotheses concerning the origin of disjunct populations within North America.
The copepod family Centropagidae is widely distributed and occurs in marine, estuarine, freshwater, and inland saline settings. Molecular phylogenies based upon the 16S and 28S genes demonstrate a… Expand