Unionidae

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Unionidae

[‚yü·nē′än·ə‚dē]
(invertebrate zoology)
The fresh-water mussels, a family of bivalve mollusks in the subclass Eulamellibranchia; the larvae, known as glochidia, are parasitic on fish.
References in periodicals archive ?
All species of North American unionid mussels must undergo an obligatory parasitism of specific hosts in order to metamorphose from glochidia into free-living juveniles (Bogan and Roe, 2008).
A survey of the unionid mussels of the Grand River's wild and scenic section.
Potential effects of a wide array of contaminants from the SITE on downstream unionid mussels were discussed, and critical research needs were introduced.
Ultrastructural evidence for nutritional exchange between brooding unionid mussels and their glochidia larvae.
As a result of Dreissena polymorpha being dissected differently than unionid mussels, the concentration of enzymes used in the analysis could be lower in D.
During the summer of 2011, we conducted surveys for state-threatened unionid mussels on the San Saba River 12 km east of San Saba, Texas.
The fact that most of the unionid mussel assemblage has persisted in the Verdigris River over the last few millennia is remarkable and is attributable to their resilience to human impacts and watershed alterations.
Evidence of large change in unionid mussel abundance from selective muskrat predation, as inferred by shell remains left on shore.
Rocks and the unionid mussel Amblema plicata, with attached zebra mussels (Dreissena polymorpha), were collected by SCUBA from sites on the southwest and northeast sides of Lake Pepin, Mississippi River, Minnesota and Wisconsin (Pool 4, River Mile 765) in Sep.
Of the 65 unionid mussel species listed by Watters (1992) where multiple fish hosts were identified, only five of those mussel species had fish hosts that were restricted to a single genus.