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Accepted manuscript

Invasive Eelgrass Hybrid, Vallisneria × pseudorosulata in the Southeastern United States

Published online by Cambridge University Press:  23 December 2024

Maxwell G. Gebhart Open the ORCID record for Maxwell G. Gebhart [Opens in a new window] ,
Samuel A. Schmid Open the ORCID record for Samuel A. Schmid [Opens in a new window] ,
Stephen Turner ,
David Webb ,
Ryan Thum ,
Jens Beets  and
Gray Turnage
Maxwell G. Gebhart*
Affiliation:
Research Associate, Mississippi State University, Starkville, MS, US
Samuel A. Schmid
Affiliation:
Research Associate, Mississippi State University, Starkville, MS, US
Stephen Turner
Affiliation:
Program Manager, Tennessee Valley Authority, Knoxville, TN, US
David Webb
Affiliation:
Senior Program Manager, Tennessee Valley Authority, Knoxville, TN, US
Ryan Thum
Affiliation:
Professor, Montana State University, Bozeman, MT,US
Jens Beets
Affiliation:
Research Ecologist, USDA, Davis, California, US
Gray Turnage
Affiliation:
Extension Research Professor, Mississippi State University, Starkville, MS, US
*
Author for correspondence: Maxwell G Gebhart; Email: mgebhart@gri.msstate.edu
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Abstract

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Vallisneria × pseudorosulata S.Fujii & M.Maki is an invasive aquatic weed that has recently become a major issue within the southeast U.S. V. × pseudorosulata is a hybrid between two non-native eelgrass species (Vallisneria spiralis L. and Vallisneria denseserrulata Makino) and has rapidly overtaken waterbodies in Tennessee, Alabama, and Florida. This hybrid can reproduce rapidly through offshoot formation and floating propagules capable of drifting large distances before establishing. Vallisneria × pseudorosulata has been previously found in Japan and is thought to have been introduced in the U.S. by the aquarium trade or dumping.

Keywords

aquatic macrophyteaquarium tradecryptic invaderVallisneriasubmersed
Type
Invasion Alert
Information
Invasive Plant Science and Management , Accepted manuscript , pp. 1 - 11
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of Weed Science Society of America