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Occurrence of microsporidians Glugea hertwigi and Pleistophora ladogensis, in smelt Osmerus eperlanus from two German rivers, North Sea coast

2016Journal article Open access
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dc.contributor.authorCosta, G.
dc.contributor.authorMoreira, E. Melo
dc.contributor.authorCarvalho, M. A. P. de
dc.date.accessioned2022-09-23T10:26:13Z
dc.date.available2022-09-23T10:26:13Z
dc.date.issued2016
dc.description.abstractMonthly samples of smelt Osmerus eperlanus (Linnaeus, 1758) were collected from July 1985 to May 1986, in the river Elbe (Germany), and examined for infections with microsporidi ans. Two microsporidians were found: Glugea hertwigi Weissenberg, 1911, infecting the digestive tract and Pleistophora ladogenis Voronin, 1978, infecting the skeletal musculature. G. hertwigi in fection led to the formation of xenomas, whereas P. ladogensis was characterized by diffuse infec tions, with the production of macroscopic visible thread-like or oval-shaped infection foci. Develop ment of G. hertwigi in the host cells showed characteristics typical of the genus Glugea. The ultrastructural development of P. ladogensis showed features typical of the genus Pleistophora, without evidence of the production of 2 types of spores. Host reaction consisted of inflammatory tis sue surrounding some of the infection foci as well as phagocytosis of spores. G. hertwigi was only found in juvenile smelt (<10 cm in length), whereas P. ladogensis infected smelts from 6 to 26 cm in length. Prevalence increased with fish length to a maximum value of 9.6%. Seasonal fluctuations in prevalence of infection were also found, with the lowest value in the winter months (2.5% in January 1986) and the highest in summer (11.8% in July 1985). The differences in prevalence of in fection with fish length and date of sampling were significant. Additionally, samples of smelt caught in April 1986 from the rivers Eider and Ems revealed infections with P. ladogensis in the first river system only.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCosta, G., Melo-Moreira, E., & Carvalho, M. A. P. (2016). Occurrence of microsporidians Glugea hertwigi and Pleistophora ladogensis, in smelt Osmerus eperlanus from two German rivers, North Sea coast. Diseases of Aquatic Organisms, 121(1), 49-57.pt_PT
dc.identifier.doi10.3354/dao03040pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4646
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInter Researchpt_PT
dc.subjectMicrosporidiapt_PT
dc.subjectGlugea hertwigipt_PT
dc.subjectPleistophora ladogensispt_PT
dc.subjectSmeltpt_PT
dc.subjectOsmerus eperlanuspt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.titleOccurrence of microsporidians Glugea hertwigi and Pleistophora ladogensis, in smelt Osmerus eperlanus from two German rivers, North Sea coastpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage57pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage49pt_PT
oaire.citation.titleDiseases of Aquatic Organismspt_PT
oaire.citation.volume121pt_PT
person.familyNamePereira da Costa
person.familyNameAlmeida Pinheiro de Carvalho
person.givenNameGraça Maria
person.givenNameMiguel Angelo
person.identifier1218558
person.identifier.ciencia-id4B1C-4144-D839
person.identifier.ciencia-id4610-6741-6816
person.identifier.orcid0000-0003-0277-3376
person.identifier.orcid0000-0002-5084-870X
person.identifier.ridAEE-0913-2022
person.identifier.scopus-author-id8758577600
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication5c9c6608-1cc2-4d67-81e1-3f322eaf34bc
relation.isAuthorOfPublication2e433c48-88f8-40a2-b21f-de78b44aab1c
relation.isAuthorOfPublication.latestForDiscovery5c9c6608-1cc2-4d67-81e1-3f322eaf34bc

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