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dc.contributor.author
Sommer, Stephanie A.
dc.contributor.author
Van Woudenberg, Lauren
dc.contributor.author
Lenz, Petra H.
dc.contributor.author
Cepeda, Georgina Daniela
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dc.contributor.author
Goetze, Erica
dc.date.available
2018-08-02T20:12:20Z
dc.date.issued
2017-11
dc.identifier.citation
Sommer, Stephanie A.; Van Woudenberg, Lauren; Lenz, Petra H.; Cepeda, Georgina Daniela; Goetze, Erica; Vertical gradients in species richness and community composition across the twilight zone in the North Pacific Subtropical Gyre; Wiley Blackwell Publishing, Inc; Molecular Ecology; 26; 21; 11-2017; 6136-6156
dc.identifier.issn
0962-1083
dc.identifier.uri
http://hdl.handle.net/11336/53966
dc.description.abstract
Although metazoan animals in the mesopelagic zone play critical roles in deep pelagic food webs and in the attenuation of carbon in midwaters, the diversity of these assemblages is not fully known. A metabarcoding survey of mesozooplankton diversity across the epipelagic, mesopelagic and upper bathypelagic zones (0–1500 m) in the North Pacific Subtropical Gyre revealed far higher estimates of species richness than expected given prior morphology-based studies in the region (4,024 OTUs, 10-fold increase), despite conservative bioinformatic processing. Operational taxonomic unit (OTU) richness of the full assemblage peaked at lower epipelagic–upper mesopelagic depths (100–300 m), with slight shoaling of maximal richness at night due to diel vertical migration, in contrast to expectations of a deep mesopelagic diversity maximum as reported for several plankton groups in early systematic and zoogeographic studies. Four distinct depth-stratified species assemblages were identified, with faunal transitions occurring at 100 m, 300 m and 500 m. Highest diversity occurred in the smallest zooplankton size fractions (0.2–0.5 mm), which had significantly lower % OTUs classified due to poor representation in reference databases, suggesting a deep reservoir of poorly understood diversity in the smallest metazoan animals. A diverse meroplankton assemblage also was detected (350 OTUs), including larvae of both shallow and deep living benthic species. Our results provide some of the first insights into the hidden diversity present in zooplankton assemblages in midwaters, and a molecular reappraisal of vertical gradients in species richness, depth distributions and community composition for the full zooplankton assemblage across the epipelagic, mesopelagic and upper bathypelagic zones.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
18s Rrna
dc.subject
Marine Zooplankton
dc.subject
Mesopelagic
dc.subject
Metabarcoding
dc.subject
Station Aloha
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Vertical gradients in species richness and community composition across the twilight zone in the North Pacific Subtropical Gyre
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-23T17:59:50Z
dc.journal.volume
26
dc.journal.number
21
dc.journal.pagination
6136-6156
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Sommer, Stephanie A.. University of Hawaii at Manoa; Estados Unidos
dc.description.fil
Fil: Van Woudenberg, Lauren. University of Hawaii at Manoa; Estados Unidos
dc.description.fil
Fil: Lenz, Petra H.. University of Hawaii at Manoa; Estados Unidos
dc.description.fil
Fil: Cepeda, Georgina Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
dc.description.fil
Fil: Goetze, Erica. University of Hawaii at Manoa; Estados Unidos
dc.journal.title
Molecular Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/mec.14286
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/mec.14286
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