The Role of Hydrodynamic Habitat in the Feeding Ecology of Freshwater Mussels (Bivalvia: Unionidae)

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The Role of Hydrodynamic Habitat in the Feeding Ecology of Freshwater Mussels (Bivalvia: Unionidae)

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dc.contributor.advisor Ackerman, Josef
dc.contributor.author Vanden Byllaardt, Julie
dc.date 2011-10-28
dc.date.accessioned 2011-11-18T16:24:03Z
dc.date.available 2011-11-18T16:24:03Z
dc.date.issued 2011-11-18
dc.identifier.uri http://hdl.handle.net/10214/3137
dc.description.abstract I examined the suspension feeding of four freshwater unionid mussels, Elliptio complanata, Elliptio dilatata, Fusconaia flava and Strophitus undulatus to help explain how more than 30 species can coexist in a single river, as well as to contribute new insights into their basic biology. I examined whether the flux of algae affected the suspension feeding (clearance rate, CR) of unionids in a flow chamber. CR varied with seston flux (J = UC, where U is the velocity and C is the algal concentration) for the 4 species examined. The lotic species (E. dilatata) cleared up to four times more water than lentic species (E. complanata). Differences in CRs were found among E. dilatata, F. flava, and S. undulatus from the same hydrodynamic habitat at the highest flux tested; the CR of E. dilatata varied with the hydrodynamics of its native river. These results provide new insight into how seston flux influences unionid suspension feeding, which may help to explain niche breadth in this group. en_US
dc.language.iso en en_US
dc.subject Suspension Feeding en_US
dc.subject Bivalve en_US
dc.subject Mussel en_US
dc.subject Hydrodynamics en_US
dc.subject Habitat en_US
dc.subject Unionidae en_US
dc.title The Role of Hydrodynamic Habitat in the Feeding Ecology of Freshwater Mussels (Bivalvia: Unionidae) en_US
dc.type Thesis en_US
dc.degree.programme Integrative Biology en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Integrative Biology en_US


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