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Article: Parasitism of Mussel Gills by Dragonfly Nymphs
- Article from:
- The American Midland Naturalist
- Article date:
- July 1, 2009
- Author:
CopyrightCopyright American Midland Naturalist Jul 2009. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT.
Predators of unionoid mussels are generally identified as fishes or aquatic mammals. During a mark and recapture study of the critically endangered mussel Popenaias popeii, we discovered a nymph of the dragonfly Gomphus militaris eating the gills of a gravid mussel; larvae and gill material were found in the nymph's gut. Many (15.2%) of the other mussels captured during a quantitative survey exhibited damage consistent with that inflicted by this dragonfly. Few non-gravid mussels were damaged and gravid mussels exhibited substantially more damage in gills used for brooding larvae than in gills not typically used for brooding. This previously unreported parasitic relationship may ...
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