IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

Diversity of Antarctic echinoids and ecoregions of the Southern Ocean
Fabri-Ruiz, S.; Navarro, N.; Laffont, R.; Danis, B.; Saucede, T. (2020). Diversity of Antarctic echinoids and ecoregions of the Southern Ocean. Biol. Bull. 47(6): 683-698. https://hdl.handle.net/10.1134/S1062359020060047
In: Biology Bulletin. Maik Nauka/Interperiodica Publishing: Moscow. ISSN 1062-3590; e-ISSN 1608-3059, more
Peer reviewed article  

Available in  Authors 

Keyword
    Marine/Coastal

Authors  Top 
  • Fabri-Ruiz, S., more
  • Navarro, N.
  • Laffont, R.
  • Danis, B., more
  • Saucede, T.

Abstract
    Significant environmental changes have already been documented in the Southern Ocean (e.g. sea water temperature increase and salinity drop) but its marine life is still incompletely known given the heterogeneous nature of biogeographic data. However, to establish sustainable conservation areas, understanding species and communities distribution patterns is critical. For this purpose, the ecoregionalization approach can prove useful by identifying spatially explicit and well-delimited regions of common species composition and environmental settings. Such regions are expected to have similar biotic responses to environmental changes and can be used to define priorities for the designation of Marine Protected Areas. In the present work, a benthic ecoregionalization of the Southern Ocean is proposed based on echinoids distribution data and abiotic environmental parameters. Echinoids are widely distributed in the Southern Ocean, they are taxonomically and ecologically well diversified and documented. Given the heterogeneity of the sampling effort, predictive spatial models were produced to fill the gaps in between species distribution data. A first procedure was developed using Gaussian Mixture Models (GMM) to combine individual species models into ecoregions. A second, integrative procedure was implemented using the Generalized Dissimilarity Models (GDM) to model and assemble species distributions. Both procedures were compared to propose benthic ecoregions at the scale of the entire Southern Ocean.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors