Repository logo
 
Publication

High occurrence of jellyfish predation by black-browed and Campbell albatross identified by DNA metabarcoding

2017Journal article Restricted access
Simple item page
dc.contributor.authorMcInnes, Julie C.
dc.contributor.authorAlderman, Rachael
dc.contributor.authorLea, Mary-Anne
dc.contributor.authorRaymond, Ben
dc.contributor.authorDeagle, Bruce E.
dc.contributor.authorPhillips, Richard A.
dc.contributor.authorStanworth, Andrew J.
dc.contributor.authorThompson, David R.
dc.contributor.authorCatry, Paulo
dc.contributor.authorWeimerskirch, Henri
dc.contributor.authorSuazo, Cristián G.
dc.contributor.authorGras, Michaël
dc.contributor.authorJarman, Simon Neil
dc.date.accessioned2017-09-30T10:40:27Z
dc.date.available2017-09-30T10:40:27Z
dc.date.issued2017
dc.descriptionOs dados estão depositados em Australian Antarctic Data Centre e disponíveis em https://doi.org/10.4225/15/5955d989a1940pt_PT
dc.description.abstractGelatinous zooplankton are a large component of the animal biomass in all marine environments, but are considered to be uncommon in the diet of most marine top predators. However, the diets of key predator groups like seabirds have conventionally been assessed from stomach content analyses, which cannot detect most gelatinous prey. As marine top predators are used to identify changes in the overall species composition of marine ecosystems, such biases in dietary assessment may impact our detection of important ecosystem regime shifts. We investigated albatross diet using DNA metabarcoding of scats to assess the prevalence of gelatinous zooplankton consumption by two albatross species, one of which is used as an indicator species for ecosystem monitoring. Black-browed and Campbell albatross scats were collected from eight breeding colonies covering the circumpolar range of these birds over two consecutive breeding seasons. Fish was the main dietary item at most sites; however, cnidarian DNA, primarily from scyphozoan jellyfish, was present in 42% of samples overall and up to 80% of samples at some sites. Jellyfish was detected during all breeding stages and consumed by adults and chicks. Trawl fishery catches of jellyfish near the Falkland Islands indicate a similar frequency of jellyfish occurrence in albatross diets in years of high and low jellyfish availability, suggesting jellyfish consumption may be selective rather than opportunistic. Warmer oceans and overfishing of finfish are predicted to favour jellyfish population increases, and we demonstrate here that dietary DNA metabarcoding enables measurements of the contribution of gelatinous zooplankton to the diet of marine predators.pt_PT
dc.description.sponsorshipAustralian Antarctic Science; Winifred Violet Scott Charitable Trust; Fundação para a Ciência e a Tecnologia (FCT)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMolecular Ecology, 26 (18), 4831-4845. Doi: 10.1111/mec.14245pt_PT
dc.identifier.doi10.1111/mec.14245pt_PT
dc.identifier.issn0962-1083
dc.identifier.urihttp://hdl.handle.net/10400.12/5825
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationGrant (4014)pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectClimate changept_PT
dc.subjectCnidarianspt_PT
dc.subjectFaecespt_PT
dc.subjectFoodpt_PT
dc.subjectIndicator speciespt_PT
dc.subjectScatspt_PT
dc.subjectSeabirdpt_PT
dc.titleHigh occurrence of jellyfish predation by black-browed and Campbell albatross identified by DNA metabarcodingpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F04292%2F2013/PT
oaire.citation.conferencePlaceUnited Kingdompt_PT
oaire.citation.endPage4845pt_PT
oaire.citation.issue18pt_PT
oaire.citation.startPage4831pt_PT
oaire.citation.titleMolecular Ecologypt_PT
oaire.citation.volume26pt_PT
oaire.fundingStream5876
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublicationb45075bd-b8ca-49a6-bfec-2030828e7160
relation.isProjectOfPublication.latestForDiscoveryb45075bd-b8ca-49a6-bfec-2030828e7160

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
ME, 1-15.pdf
Size:
1.69 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.61 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

MARE - Artigos em revistas internacionais