Detachment rates of dreissenid mussels after boat hull-mediated overland dispersal
Introductions of the invasive zebra mussel ( Dreissena polymorpha ) and quagga mussel ( Dreissena rostriformis bugensis) into hydrologically isolated water bodies have been attributed to overland transport via (recreational) boat hulls. Before a boat becomes a successful vector, mussels must (1) att...
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Published in | Hydrobiologia Vol. 810; no. 1; pp. 77 - 84 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Cham
Springer International Publishing
01.03.2018
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Introductions of the invasive zebra mussel (
Dreissena polymorpha
) and quagga mussel (
Dreissena rostriformis bugensis)
into hydrologically isolated water bodies have been attributed to overland transport via (recreational) boat hulls. Before a boat becomes a successful vector, mussels must (1) attach to the hull, (2) survive air exposure during overland transport and (3) establish a viable population either after detachment or release of spat during launching or sailing. This study mimics these dispersal barriers and assesses the potential of boat hull-mediated release into a recipient environment for both species. Individuals were allowed to attach to aluminium and fibreglass plates. Hereafter, attached individuals were exposed to air and subsequently submerged again. Zebra mussels had a significantly higher attachment rate than quagga mussels. The percentage of attached dreissenid mussels that detached alive during rewetting ranged between 7.9 and 21.8%. No significant difference was found between species and hull materials. However, alive detachment during rewetting was significantly higher after 24 h compared to 48 h of air exposure. Our data allow modelling introduction pressure of lakes if quantitative data on overland boat movement and the density of attached mussels are available. |
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ISSN: | 0018-8158 1573-5117 |
DOI: | 10.1007/s10750-016-3072-4 |