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Ecophysiological traits of highly mobile large marine predators inferred from nucleic acid derived indices

2020Journal article Open access
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dc.contributor.authorAlves, Filipe
dc.contributor.authorDromby, Morgane
dc.contributor.authorBaptista, Vânia
dc.contributor.authorFerreira, R.
dc.contributor.authorCorreia, A. M.
dc.contributor.authorWeyn, M.
dc.contributor.authorValente, R.
dc.contributor.authorFroufe, E.
dc.contributor.authorRosso, M.
dc.contributor.authorSousa-Pinto, I.
dc.contributor.authorDinis, A.
dc.contributor.authorDias, E.
dc.contributor.authorTeodosio, M A
dc.date.accessioned2020-09-23T13:32:25Z
dc.date.available2020-09-23T13:32:25Z
dc.date.issued2020
dc.description.abstractNucleic acid-derived indices such as RNA/DNA ratios have been successfully applied as ecophysiological indicators to assess growth, nutritional condition and health status in marine organisms given that they provide a measure of tissue protein reserves, which is known to vary depending on changes in the environment. Yet, the use of these biochemical indices on highly mobile large predators is scarce. In this study, we tested the applicability of using nucleic acids to provide insights on the ecophysiological traits of two marine mammal species (common bottlenose dolphins and short-finned pilot whales) and explored potential related factors (species, sex, season, and residency pattern), using skin tissue (obtained from biopsy darts) of apparently healthy and adult free-ranging animals. Significantly higher RNA/DNA ratios were obtained for bottlenose dolphins (p < 0.001), and for visitor pilot whales when compared with resident pilot whales (p = 0.001). No significant changes were found between the sexes. Based on the percentile approach, the samples contain individuals in a general good condition (as the 10th percentile is not closer to the mean than the 75th percentile), suggesting that the studied region of Macaronesia may be considered an adequate habitat. The combination of this effective tool with genetic sexing and photographic-identification provided an overall picture of ecosystem health, and although with some limitations and still being a first approach, it has the applicability to be used in other top predators and ecosystems.pt_PT
dc.description.sponsorshipPortuguese Foundation for Science and Technology: UID/MAR/04292/2019/ UID/Multi/04326/2019/ UIDB/04423/2020pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1038/s41598-020-61769-7pt_PT
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/10400.1/14739
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherNature Researchpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleEcophysiological traits of highly mobile large marine predators inferred from nucleic acid derived indicespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue1pt_PT
oaire.citation.startPage4752pt_PT
oaire.citation.titleScientific Reportspt_PT
oaire.citation.volume10pt_PT
person.familyNameAlves
person.familyNameBaptista
person.familyNameTeodosio
person.givenNameFilipe
person.givenNameVânia
person.givenNameMaria
person.identifier1069549
person.identifier479502
person.identifier.ciencia-id1F1F-08D6-E54D
person.identifier.ciencia-id0C1F-4F1B-256B
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.orcid0000-0003-3752-2745
person.identifier.orcid0000-0002-1428-3334
person.identifier.orcid0000-0002-0939-9885
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id15748099500
person.identifier.scopus-author-id55820032600
person.identifier.scopus-author-id56196396700
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublicationf8ce670b-477c-4002-97de-1950c5a7d3c2
relation.isAuthorOfPublicationb39b2d6d-d6f5-4130-a9b9-4e7624d44676
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