[en] 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.
Research Center/Unit :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège
Le Bourg, Baptiste ✱; Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS)
Balazy, Piotr ; Institute of Oceanology, Polish Academy of Sciences (IOPAN), Sopot, Poland
Danis, Bruno ; Marine Biology Lab, Université Libre de Bruxelles (ULB), Brussels, Belgium
Eléaume, Marc ; Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle (MNHN), CNRS, Sorbonne Université, EPHE, Paris, France
Kuklinski, Piotr ; Institute of Oceanology, Polish Academy of Sciences (IOPAN), Sopot, Poland
Lepoint, Gilles ; Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS)
Saucède, Thomas ; Biogéosciences, UMR CNRS 6282, Université Bourgogne Franche-Comté, Dijon, France
Van de Putte, Anton ; Marine Biology Lab, Université Libre de Bruxelles (ULB), Brussels, Belgium ; OD Nature, Royal Belgian Institute of Natural Sciences, Brussels, Belgium
Michel, Loïc ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution ; Ifremer, Centre de Bretagne, REM/EEP, Laboratoire Environnement Profond, Plouzané, France
✱ These authors have contributed equally to this work.
Language :
English
Title :
Trophic markers and biometric measurements in Southern Ocean sea stars (1985-2017).
AAD - Australian Antarctic Division BELSPO - Belgian Science Policy Office FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture IPEV - Institut Polaire Français Paul Émile Victor NCN - Narodowe Centrum Nauki
Funding text :
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 Funding information
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