Can invasive alien fish species act as effective hosts of native freshwater mussels (Unionidae) in Iberia?

Teixeira, Amílcar; Dias, Ana Rita; Miranda, Fernando Jorge Veloso; Lopes-Lima, Manuel; Varandas, Simone; Froufe, Elsa; Filipe, Ana Filipa; Beja, Pedro; Sousa, Ronaldo

Publication

Can invasive alien fish species act as effective hosts of native freshwater mussels (Unionidae) in Iberia?

2018Conference object

dc.contributor.author	Teixeira, Amílcar
dc.contributor.author	Dias, Ana Rita
dc.contributor.author	Miranda, Fernando Jorge Veloso
dc.contributor.author	Lopes-Lima, Manuel
dc.contributor.author	Varandas, Simone
dc.contributor.author	Froufe, Elsa
dc.contributor.author	Filipe, Ana Filipa
dc.contributor.author	Beja, Pedro
dc.contributor.author	Sousa, Ronaldo
dc.date.accessioned	2019-02-26T15:41:36Z
dc.date.available	2019-02-26T15:41:36Z
dc.date.issued	2018
dc.description.abstract	The freshwater biodiversity of Mediterranean areas is severely threatened by several human activities, including habitat loss and fragmentation, river regulation, pollution, overexploitation, climate change and introduction of invasive alien species (IAS). These human disturbances drastically affect native fish and mussel populations and possibly conservation measures are needed to implement to revert major problems. Particularly at risk may be affiliate species such as freshwater mussels (Bivalvia, Unionoida) that have an obligatory parasitic phase of a short-term larval stage on fish host gills and fins. In Iberia, the identification of effective fish hosts for unionid species and the impact of IAS remain unclear. In this study, field and laboratorial studies were performed to assess the fish hosts for Anodonta anatina, Unio delphinus and Potomida littoralis. For in situ monitoring done in Douro basin (Northern Portugal), results showed an effective infestation for native (Luciobarbus bocagei, Squalius carolitertii, Squalius alburnoides and Pseudochondrostoma duriense) but also for non-native (Lepomis gibbosus, Alburnus alburnus, Gambusia holbrooki and Gobio lozanoi) fishes. The highest infestation rate and prevalence were observed for L. bocagei and S. carolitertii, but also for L. gibbosus. However, in laboratorial experiments significant differences were found. In fact, for U. delphinus and P. littoralis only native fishes (mainly endemic cyprinids) showed to be effective hosts, since viable juveniles were produced. A. anatina exhibited a more generalist behavior, with a wide range of native (endemic cyprinids of north and south Iberia) and non-native (Australoheros facetus, Oncorhynchus mykiss, Esox lucius, Phoxinus phoxinus, A. alburnus and G. lozanoi) fish host species. Overall, our results showed: 1) the importance of native fish species for the maintenance of a good conservation status of native unionids; 2) some invasive fish species can also function as hosts of A. anatina and 3) basic ecological data using field monitoring and laboratorial experiments are fundamental to design future conservation measures such as reproduction in captivity and propagation of threatened unionids.	pt_PT
dc.description.sponsorship	FCT-PTDC/AGR-FOR/1627/2014. Also funded by Project 3599 - Promoting Scientific and Technological Development Production and the Constitution of Thematic Networks (3599-PPCDT) reimbursed by FEDER.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Teixeira, Amílcar; Dias, Ana; Miranda, Fernando; Lopes-Lima, Manuel; Varandas, Simone; Froufe, Elsa; Filipe, Ana Filipa; Beja, Pedro; Sousa, Ronaldo (2018). Can invasive alien fish species act as effective hosts of native freshwater mussels (Unionidae) in Iberia? In VII Iberian Congress of Ichthyology: book of abstracts. Faro. ISBN 978-989-95587-6-2	pt_PT
dc.identifier.isbn	978-989-95587-6-2
dc.identifier.uri	http://hdl.handle.net/10198/18990
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Native freshwater mussels	pt_PT
dc.subject	Unionidae	pt_PT
dc.title	Can invasive alien fish species act as effective hosts of native freshwater mussels (Unionidae) in Iberia?	pt_PT
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferencePlace	Faro	pt_PT
oaire.citation.title	VII Congresso Ibérico de Ictiologia SIBIC: livro de resumos	pt_PT
person.familyName	Teixeira
person.givenName	Amilcar
person.identifier	2153193
person.identifier.ciencia-id	9510-3CF3-0393
person.identifier.orcid	0000-0001-5336-1174
person.identifier.scopus-author-id	7202385393
rcaap.rights	openAccess	pt_PT
rcaap.type	conferenceObject	pt_PT
relation.isAuthorOfPublication	4f0753fd-4b4f-46f6-8e2f-20c7f835a32a
relation.isAuthorOfPublication.latestForDiscovery	4f0753fd-4b4f-46f6-8e2f-20c7f835a32a