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Volume 103, Issue 3 e3611
DATA PAPER
Free Access

Trophic markers and biometric measurements in Southern Ocean sea stars (1985–2017)

Camille Moreau

Camille Moreau

Marine Biology Lab, Université Libre de Bruxelles (ULB), Brussels, Belgium

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Baptiste Le Bourg

Baptiste Le Bourg

Laboratory of Oceanology, Freshwater and Oceanic Sciences Unit of reSearch (FOCUS), University of Liège, Liège, Belgium

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Piotr Balazy

Piotr Balazy

Institute of Oceanology, Polish Academy of Sciences (IOPAN), Sopot, Poland

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Bruno Danis

Bruno Danis

Marine Biology Lab, Université Libre de Bruxelles (ULB), Brussels, Belgium

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Marc Eléaume

Marc Eléaume

Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle (MNHN), CNRS, Sorbonne Université, EPHE, Paris, France

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Quentin Jossart

Quentin Jossart

Marine Biology Lab, Université Libre de Bruxelles (ULB), Brussels, Belgium

Marine Biology, Vrije Universiteit Brussel (VUB), Brussels, Belgium

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Piotr Kuklinski

Piotr Kuklinski

Institute of Oceanology, Polish Academy of Sciences (IOPAN), Sopot, Poland

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Gilles Lepoint

Gilles Lepoint

Laboratory of Oceanology, Freshwater and Oceanic Sciences Unit of reSearch (FOCUS), University of Liège, Liège, Belgium

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Thomas Saucède

Thomas Saucède

Biogéosciences, UMR CNRS 6282, Université Bourgogne Franche-Comté, Dijon, France

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Anton Van de Putte

Anton Van de Putte

Marine Biology Lab, Université Libre de Bruxelles (ULB), Brussels, Belgium

OD Nature, Royal Belgian Institute of Natural Sciences, Brussels, Belgium

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Loïc N. Michel

Corresponding Author

Loïc N. Michel

Laboratory of Oceanology, Freshwater and Oceanic Sciences Unit of reSearch (FOCUS), University of Liège, Liège, Belgium

Ifremer, Centre de Bretagne, REM/EEP, Laboratoire Environnement Profond, Plouzané, France

Correspondence

Loïc N. Michel

Email: [email protected]

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First published: 17 December 2021

Handling Editor: William K. Michener

Camille Moreau and Baptiste Le Bourg contributed equally to the manuscript and database elaboration and are co-first authors.

Funding information: Australian Antarctic Division, Grant/Award Number: IPY project 53 CEAMARC; Belgian Federal Science Policy Office, Grant/Award Numbers: BR/132/A1/VERSO, BR/154/A1/RECTO; Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture, Grant/Award Number: 1.E091.16; Institut Polaire Français Paul Emile Victor, Grant/Award Numbers: IPEV research program 1044 PROTEKER, IPEV research program 1124 REVOLTA; Narodowe Centrum Nauki, Grant/Award Number: OPUS grant number 2020/37/B/ST10/02905

Abstract

Sea stars (Echinodermata: Asteroidea) are a key component of Southern Ocean benthos, with 16% of the known sea star species living there. In temperate marine environments, sea stars commonly play an important role in food webs, acting as keystone species. However, trophic ecology and functional role of Southern Ocean sea stars are still poorly known, notably due to the scarcity of large-scale studies. Here, we report 24,332 trophic marker (stable isotopes and elemental contents of C, N, and S of tegument and/or tube feet) and biometric (arm length, disk radius, arm to disk ratio) measurements in 2,456 specimens of sea stars. Samples were collected between 12 January 1985 and 8 October 2017 in numerous locations along the Antarctic littoral and subantarctic islands. The spatial scope of the data set covers a significant portion of the Southern Ocean (47.717° S to 86.273° S; 127.767° W to 162.201° E; depth, 6–5,338 m). The data set contains 133 distinct taxa, including 72 currently accepted species spanning 51 genera, 20 families, and multiple feeding guilds/functional groups (suspension feeders, sediment feeders, omnivores, predators of mobile or sessile prey). For 505 specimens, mitochondrial CO1 genes were sequenced to confirm and/or refine taxonomic identifications, and those sequences are already publicly available through the Barcode of Life Data System. This number will grow in the future, as molecular analyses are still in progress. Overall, thanks to its large taxonomic, spatial, and temporal extent, as well as its integrative nature (combining genetic, morphological, and ecological data), this data set can be of wide interest to Southern Ocean ecologists, invertebrate zoologists, benthic ecologists, and environmental managers dealing with associated areas. Please cite this data paper in research products derived from the data set, which is freely available without copyright restrictions.

    DATA AVAILABILITY STATEMENT

    The data set is available on Zenodo: https://doi.org/10.5281/zenodo.5041317.