![]() The phylogeographic and demographic patterns in the endemic range of Dreissena might have resulted from vicariance events, habitat instability, and the high fecundity and passive dispersal of these organisms. Haplotype diversity was relatively low in Ponto-Caspian drainages relative to more stable tectonic lakes in Greece, Macedonia, and Turkey. An unprecedented invasion began in North America in the mid-/late-1980s when two Eurasian mussel species, Dreissena polymorpha (zebra mussel) and Dreissena rostriformis bugensis (quagga mussel), became established in Laurentian Great Lakes. Across all taxa, populations of Dreissena shared a common pattern of genetic signatures indicating historical population bottlenecks and expansions. Divergence events within the four base clades were much more recent, corresponding to geographically disjunct sets of populations, which might represent species complexes. We found four deeply diverged clades within this genus, with a basal split that approximately coincided with the Cretaceous-Tertiary boundary. The objectives of this study were to gain insights into the demographic history of Dreissena species in their endemic range, to reconstruct intraspecific phylogeographic relationships among populations, and to clarify systematics of the genus, using DNA sequences from the mitochondrial cytochrome oxidase I (COI) gene. Zebra mussels (Dreissena polymorpha Pallas 1771) are small freshwater bivalves native to Black, Azov, and Caspian Sea drainages of southern Russia and the Ukraine (Stepien et al. This genus evolved in the Ponto-Caspian Sea basin, characterized by dynamic instability over multiple timescales and a unique evolutionary environment that may predispose to invasiveness. This SETL-plate (a PVC plate attached to a brick) was overgrown within three months of deployment in water. Dreissena polymorpha (zebra mussel) specimens tend to overgrow all hard substrata in fresh water systems that are invaded. NID's original program was to assess the vulnerability and prevent the introduction of quagga and zebra mussels (dreissenid mussels) into three lower-elevation storage facilities: Scotts Flat, Rollins and Combie Reservoirs.įunding was obtained through a grant with the Department of Boating and Waterways (DBW) to develop a Vulnerability Assessment and Prevention/Monitoring Plan.The genus Dreissena includes two widespread and aggressive aquatic invaders, the zebra mussel, Dreissena polymorpha, and the quagga mussel, Dreissena bugensis. Dreissena polymorpha (zebra mussel) habit in sandy lake bed. Adults can survive out of water for days under certain conditions.īoaters are asked to inspect their boats to prevent their spread. They spread primarily by attaching to boat hulls, aquatic plants, docks and lifts. From there, they expanded to the Mississippi River and later into some California waterways. Ellen Marsden, Pete Stangel, and Angela D. Benson Influence of Environmental Factors on Zebra Mussel Population Expansion in Lake Champlain, 19942010 J. In the late 1980s and early 1990s, these invasive mussels spread from Europe to the Great Lakes in contaminated ballast water discharged from foreign ships. Chronological History of Zebra and Quagga Mussels (Dreissenidae) in North America, 19882010 Amy J. They harm native fish by consuming food and often kill native mussels, crayfish, and snails through fouling. ![]() ![]() They can clog drinking water intakes, and foul boat hulls, motors, and equipment left in lakes. Quagga and Zebra mussels are aquatic invasive species that are not native to California lakes.
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