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Title: The first global deep-sea stable isotope assessment reveals the unique trophic ecology of Vampire Squid Vampyroteuthis infernalis (Cephalopoda)
Authors: Golikov, Alexey V.
Ceia, Filipe R. 
Sabirov, Rushan M.
Ablett, Jonathan D.
Gleadall, Ian G.
Gudmundsson, Gudmundur
Hoving, Hendrik J.
Judkins, Heather
Pálsson, Jónbjörn
Reid, Amanda L.
Rosas-Luis, Rigoberto
Shea, Elizabeth K.
Schwarz, Richard
Xavier, José C. 
Issue Date: 13-Dec-2019
Publisher: Springer Nature
Project: A.V.G. and G.G. gratefully acknowledge the financial support received from the BIOICE program; J.C.X. acknowledges the financial support received from Fundação para a Ciência e Tecnologia (FCT; Portugal); and F.R.C. acknowledges funding via a postdoctoral grant (SFRH/BPD/95372/2013) from FCT and the European Social Fund (POPH; EU). This study benefited from the strategic project UID/MAR/04292/2019, granted to MARE, and is part of the long-term monitoring project BAS-CEPH, and of SCAR Ant-ERA, and ICED research programs. In the time of specimen collection H.J.H. received funding from the David and Lucile Packard Foundation, the Netherlands Organization for Scientific Research (NWO) through a Rubicon grant (#825.09.016) to H.J.H., and by a grant (CP1218) to H.J.H. of the Cluster of Excellence 80 ‘The Future Ocean’. ‘The Future Ocean’ is funded within the framework of the Excellence Initiative by the Deutsche Forschungsgemeinschaft (DFG) on behalf of the German federal and state governments. We also thank DFG for financial support to H.J.H. under the grant HO 5569/2–1 that supports the Emmy Noether Junior Research Group of H.J.H. We thank the National Oceanic and Atmospheric Administration (NOAA) and Dr. Dan Kamikawa for organizing the collection of specimens for our study during West Coast Groundfish Slope/Shelf Bottom Trawl Surveys executed by NOAA, National Marine Fisheries Service, Northwest Fisheries Science Center. We also thank Dr. Bruce Robison of the Monterey Bay Aquarium Research Institute for facilitating and supporting the work on Vampyroteuthis by R.S. and H.J.H. 
Serial title, monograph or event: Scientific Reports
Volume: 9
Issue: 1
Abstract: Vampyroteuthis infernalis Chun, 1903, is a widely distributed deepwater cephalopod with unique morphology and phylogenetic position. We assessed its habitat and trophic ecology on a global scale via stable isotope analyses of a unique collection of beaks from 104 specimens from the Atlantic, Pacific and Indian Oceans. Cephalopods typically are active predators occupying a high trophic level (TL) and exhibit an ontogenetic increase in δ15N and TL. Our results, presenting the first global comparison for a deep-sea invertebrate, demonstrate that V. infernalis has an ontogenetic decrease in δ15N and TL, coupled with niche broadening. Juveniles are mobile zooplanktivores, while larger Vampyroteuthis are slow-swimming opportunistic consumers and ingest particulate organic matter. Vampyroteuthis infernalis occupies the same TL (3.0-4.3) over its global range and has a unique niche in deep-sea ecosystems. These traits have enabled the success and abundance of this relict species inhabiting the largest ecological realm on the planet.
ISSN: 2045-2322
DOI: 10.1038/s41598-019-55719-1
Rights: openAccess
Appears in Collections:I&D MARE - Artigos em Revistas Internacionais

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