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dc.contributor.authorClark, Kyle H.
dc.contributor.authorIwanowicz, Deborah D.
dc.contributor.authorIwanowicz, Luke R.
dc.contributor.authorMueller, Sara J.
dc.contributor.authorWisor, Joshua M.
dc.contributor.authorBradshaw-Wilson, Casey
dc.contributor.authorSchill, William B.
dc.contributor.authorStauffer, J. R.
dc.contributor.authorBoyer, Elizabeth W.
dc.identifier.citationClark, K.H., Iwanowicz, D.D., Iwanowicz, L.R. et al. Freshwater unionid mussels threatened by predation of Round Goby (Neogobius melanostomus). Sci Rep 12, 12859 (2022).
dc.identifier.otherArticle number: 12859
dc.description.abstractIndigenous freshwater mussels (Unionidae) are integral to riverine ecosystems, playing a pivotal role in aquatic food webs and providing ecological services. With populations on the decline worldwide, freshwater mussels are of conservation concern. In this study, we explore the propensity of the invasive Round Goby (Neogobius melanostomus) fish to prey upon indigenous freshwater mussels. First, we conducted lab experiments where Round Gobies were given the opportunity to feed on juvenile unionid mussels and macroinvertebrates, revealing rates and preferences of consumption. Several Round Gobies consumed whole freshwater mussels during these experiments, as confirmed by mussel counts and x-ray images of the fishes. Next, we investigated Round Gobies collected from stream habitats of the French Creek watershed, which is renowned for its unique and rich aquatic biodiversity. We developed a novel DNA metabarcoding method to identify the specific species of mussels consumed by Round Goby and provide a new database of DNA gene sequences for 25 indigenous unionid mussel species. Several of the fishes sampled had consumed indigenous mussels, including the Elktoe (non-endangered), Creeper (non-endangered), Long Solid (state endangered), and Rayed Bean (federally endangered) species. The invasive Round Goby poses a growing threat to unionid mussels, including species of conservation concern. The introduction of the invasive Round Goby to freshwaters of North America is shaping ecosystem transitions within the aquatic critical zone having widespread implications for conservation and management.en_US
dc.relation.ispartofScientific Reportsen_US
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit
dc.subjectFreshwater mussels (Unionidae)en_US
dc.subjectRound Goby (Neogobius melanostomus)en_US
dc.subjectFrench Creek watersheden_US
dc.titleFreshwater unionid mussels threatened by predation of Round Goby (Neogobius melanostomus)en_US
dc.description.versionPublished articleen_US
dc.contributor.departmentEnvironmental Science / Studiesen_US
dc.contributor.avlauthorBradshaw-Wilson, Casey

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