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dc.contributor.author
García, Roberto Daniel
dc.contributor.author
Jara, Fabian Gaston
dc.contributor.author
Steciow, Mónica Mirta
dc.contributor.author
Reissig, Mariana
dc.date.available
2019-10-22T19:05:05Z
dc.date.issued
2018-07-04
dc.identifier.citation
García, Roberto Daniel; Jara, Fabian Gaston; Steciow, Mónica Mirta; Reissig, Mariana; Oomycete parasites in freshwater copepods of Patagonia: effects on survival and recruitment; Inter-Research; Diseases Of Aquatic Organisms; 129; 2; 4-7-2018; 123-134
dc.identifier.issn
0177-5103
dc.identifier.uri
http://hdl.handle.net/11336/86970
dc.description.abstract
Copepods are hosts to various oomycete parasite species, but the effects of pathogens on copepod populations have rarely been studied. This study aimed to characterize oomycete infection in the freshwater copepod Parabroteas sarsi in a temporary pond in Patagonia (Argentina). A complete hydroperiod was monitored, evaluating environmental variables as influencing factors in the oomycete infections. Laboratory experiments were performed to evaluate the susceptibility of infected copepods to consumption by predators. Although 5 species of copepods were present in the pond, only ovigerous P. sarsi females were parasitized by oomycetes. Two species of oomycetes were always found together: Aphanomyces ovidestruens and Pythium flevoense. Infections were detected at water temperatures > 20°C, with a positive relationship between temperature and parasite prevalence. Infection occurred after a decrease in large filter-feeder densities. The pathogens were not lethal to P. sarsi females in the short-term, but did produce mortality of entire egg sacs, thus negatively impacting subsequent recruitment. Mean prevalence of infection in females was 53 %, reaching 83 % in December. Females have the capacity to release an infected egg sac and generate a new one in a few days. This infection does not affect the susceptibility of P. sarsi to the predator Notonecta vereertbruggheni. The decrease in female abundance registered towards the end of the hydroperiod could be related to a combination of factors that may have a differential effect on female survival, such as increasing temperature, the energy cost of egg sac development and carrying and oomycete infection.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Inter-Research
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
COPEPODA
dc.subject
LIFE CYCLE
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OOMYCETE
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PARASITISM
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PATAGONIA
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PLANKTONIC PREDATOR
dc.subject.classification
Micología
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Oomycete parasites in freshwater copepods of Patagonia: effects on survival and recruitment
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-09-27T14:31:23Z
dc.journal.volume
129
dc.journal.number
2
dc.journal.pagination
123-134
dc.journal.pais
Alemania
dc.journal.ciudad
Oldendorf
dc.description.fil
Fil: García, Roberto Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Jara, Fabian Gaston. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Steciow, Mónica Mirta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Botánica Spegazzini; Argentina
dc.description.fil
Fil: Reissig, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.journal.title
Diseases Of Aquatic Organisms
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/abstracts/dao/v129/n2/p123-134/
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3354/dao03240
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