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Towards a pan-Arctic inventory of the species diversity of the macro- and megabenthic fauna of the Arctic shelf seas

Piepenburg Dieter, Archambault Philippe, Ambrose William G., Blanchard Arny L., Bluhm Bodil A., Carroll Michael L., Conlan Kathleen E., Cusson Mathieu, Feder Howard M., Grebmeier Jacqueline M., Jewett Stephen C., Lévesque Mélanie, Petryashev Victor V., Sejr Mikael K., Sirenko Boris I. et Włodarska-Kowalczuk Maria. (2011). Towards a pan-Arctic inventory of the species diversity of the macro- and megabenthic fauna of the Arctic shelf seas. Marine Biodiversity, 41, (1), p. 51-70.

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URL officielle: http://dx.doi.org/doi:10.1007/s12526-010-0059-7

Résumé

Although knowledge of Arctic seas has increased tremendously in the past decade, benthic diversity was investigated at regional scales only, and no attempt had been made to examine it across the entire Arctic. We present a first pan-Arctic account of the species diversity of the macro- and megabenthic fauna of the Arctic marginal shelf seas. It is based on an analysis of 25 published and unpublished species-level data sets, together encompassing 14 of the 19 marine Arctic shelf ecoregions and comprising a total of 2636 species, including 847 Arthropoda, 668 Annelida, 392 Mollusca, 228 Echinodermata, and 501 species of other phyla. For the four major phyla, we also analyze the differences in faunal composition and diversity among the ecoregions. Furthermore, we compute gross estimates of the expected species numbers of these phyla on a regional scale. Extrapolated to the entire fauna and study area, we arrive at the conservative estimate that 3900 to 4700 macro- and megabenthic species can be expected to occur on the Arctic shelves. These numbers are smaller than analogous estimates for the Antarctic shelf but the difference is on the order of about two and thus less pronounced than previously assumed. On a global scale, the Arctic shelves are characterized by intermediate macro- and megabenthic species numbers. Our preliminary pan-Arctic inventory provides an urgently needed assessment of current diversity patterns that can be used by future investigations for evaluating the effects of climate change and anthropogenic activities in the Arctic.

Type de document:Article publié dans une revue avec comité d'évaluation
ISSN:1867-1616
Volume:41
Numéro:1
Pages:p. 51-70
Version évaluée par les pairs:Oui
Date:2011
Identifiant unique:10.1007/s12526-010-0059-7
Sujets:Sciences naturelles et génie > Sciences appliquées > Océanographie
Sciences naturelles et génie > Sciences naturelles > Biologie et autres sciences connexes
Département, module, service et unité de recherche:Départements et modules > Département des sciences fondamentales
Mots-clés:Arctic, macrobenthos, megabenthos, shelf, pan-Artic inventory, diversity
Informations complémentaires:The final publication is available at Springer via http://dx.doi.org/doi:10.1007/s12526-010-0059-7
Déposé le:17 mars 2016 21:11
Dernière modification:05 déc. 2016 20:53
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