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dc.contributor.authorMilardi, Marco
dc.contributor.authorLanzoni, Mattia
dc.contributor.authorKiljunen, Mikko
dc.contributor.authorTorniainen, Jyrki
dc.contributor.authorCastaldelli, Giuseppe
dc.date.accessioned2016-07-06T06:25:27Z
dc.date.available2016-07-06T06:25:27Z
dc.date.issued2015
dc.identifier.citationMilardi, M., Lanzoni, M., Kiljunen, M., Torniainen, J., & Castaldelli, G. (2015). Natural recruitment contributes to high densities of grass carp Ctenopharyngodon idella (Valenciennes, 1844) in Western Europe. <i>Aquatic Invasions</i>, <i>10</i>(4), 439-448. <a href="https://doi.org/10.3391/ai.2015.10.4.07" target="_blank">https://doi.org/10.3391/ai.2015.10.4.07</a>
dc.identifier.otherCONVID_25277184
dc.identifier.otherTUTKAID_67691
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/50725
dc.description.abstractIntroductions of grass carp, well known for their potentially negative ecosystem effects, have been performed in several countries around the world. As the species was considered unable to reproduce naturally under non-native environmental conditions, little attention was initially given to its invasive potential. We studied an area in northern-Italy where, contrary to expectations, introductions that were performed in the early 80s still exert a considerable pressure on aquatic macrophytes. In order to reveal whether the observed population dynamics are the result of natural events or stocking we analysed the density, age- and size-structure of the grass carp population and the migration pathways available to it. Telephone surveys were also used to check for fish transport from national and international suppliers. We also sampled potential spawning and nursery areas for young individuals and, when some were captured, we applied stable isotope analyses to discriminate their origin. We found that the population of large individuals likely originated solely from early stocking. We also documented the first analytical evidence of grass carp recruitment in the study area and, to our knowledge, in Western Europe. Therefore the species has the potential to become invasive in these areas and more detailed studies are needed to assess this potential. Further management should account at least for natural recruitment and potential negative environmental effects, controlling the species where needed.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherRegional Euro-Asian Biological Invasions Centre Oy
dc.relation.ispartofseriesAquatic Invasions
dc.rightsCC BY 2.0
dc.subject.otherItaly
dc.subject.othernatural reproduction
dc.subject.otherspawning
dc.subject.otherstable isotopes
dc.titleNatural recruitment contributes to high densities of grass carp Ctenopharyngodon idella (Valenciennes, 1844) in Western Europe
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201607053485
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosTiedemuseofi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.laitosUniversity Museumen
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineMuseofi
dc.contributor.oppiaineAquatic Sciencesen
dc.contributor.oppiaineMuseumen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2016-07-05T12:15:37Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.format.pagerange439-448
dc.relation.issn1798-6540
dc.relation.numberinseries4
dc.relation.volume10
dc.type.versionpublishedVersion
dc.rights.copyright© the Authors, 2015. This is an open access article distributed under the terms of the Creative Commons Attribution License.
dc.rights.accesslevelopenAccess
dc.format.contentfulltext
dc.rights.urlhttps://creativecommons.org/licenses/by/2.0/
dc.relation.doi10.3391/ai.2015.10.4.07
dc.type.okmA1


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