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Diet of European Catfish in a Newly Invaded Region

2019Journal article Open access
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authorProfile.affiliationInstituto Politécnico de Santarém_Escola Superior Agrária de Santarémpt_PT
dc.contributor.authorFerreira, Marco
dc.contributor.authorGago, João
dc.contributor.authorRibeiro, Filipe
dc.date.accessioned2020-12-18T16:48:45Z
dc.date.available2020-12-18T16:48:45Z
dc.date.issued2019
dc.descriptionEste artigo foi incluído no número especial: Selected Papers from the "VII Iberian Congress of Ichthyology - SIBIC2018 Where rivers meet the ocean"pt_PT
dc.description.abstractBiological invasions are considered to be one of the leading causes of biodiversity loss worldwide. Freshwater ecosystems are amongst the most biodiverse, containing about 50% of the world’s known fish species but, ironically, are the most invaded ecosystems. In Portuguese freshwaters, there are currently 20 identified non-native fishes, arriving at an unprecedented rate of a new species every two years. A recent non-native is the European catfish Silurus glanis, a top predator native to Central and Eastern Europe, that arrived at the Lower Tagus (Portugal) circa 2006. This study compares the dietary habits of this top predator in two di erent habitats of the Lower Tagus in order to evaluate its potential impact. The stomach contents of 96 individuals were analyzed, 61 from the lotic environment and 35 from the lentic systems. A total of 66 stomachs contained prey items, 38 from the lotic and 28 from the lentic. Diet varied considerably between habitats, with shrimp and crayfish being the most abundant prey items in the lentic systems and shrimp and fish the most abundant prey items in the lotic section. Tendency to piscivory was observed in large-sized individuals. Overall, the findings in this study provide the first evidence of the potential impacts of European catfish through predation on the fish communities.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFerreira, M.; Gago, J. & Ribeiro, F. (2019). Diet of european catfish in a newly invaded region. Fishes, 4(4), 58. https://doi.org/10.3390/fishes4040058pt_PT
dc.identifier.doi10.3390/fishes4040058pt_PT
dc.identifier.eissn2410-3888
dc.identifier.urihttp://hdl.handle.net/10400.15/3157
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationFRISK project PTDC/AAG-MAA/0350/2014 from the Foundation for Science and Technology (FCT)pt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2410-3888/4/4/58pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSilurus glanispt_PT
dc.subjectecology of non-native freshwater fishespt_PT
dc.subjecttop predatorpt_PT
dc.subjectPortugalpt_PT
dc.subjectTagus Riverpt_PT
dc.subjectriverinept_PT
dc.subjectreservoirpt_PT
dc.subjectomnivorouspt_PT
dc.titleDiet of European Catfish in a Newly Invaded Regionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue4pt_PT
oaire.citation.titleFishespt_PT
oaire.citation.volume4pt_PT
person.familyNameAndré Evaristo de Matos Gago
person.givenNameJoão
person.identifier.ciencia-idB013-AE6E-192F
person.identifier.orcid0000-0003-3893-5920
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication406ec75e-4f7c-4086-8c18-2e47234287b9
relation.isAuthorOfPublication.latestForDiscovery406ec75e-4f7c-4086-8c18-2e47234287b9

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