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|Biodiversiteit van drie groepen representatief voor het Antarctisch Zoobenthos (BIANZO): vergelijkende structuur, verspreiding en functie|
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Engelstalige titel: Biodiversity of 3 representative groups of the Antarctic Zoobenthos
Overkoepelend project: Research action SPSD-II: Second scientific support plan for a sustainable development policy, meer
Referentie nr.: EV/24
Periode: Februari 2002 tot April 2006
Thesaurustermen: Benthos; Biodiversiteit; Biogeografie; Macrobenthos; Meiobenthos
Taxonomische termen: Amphipoda [Vlokreeften] [WoRMS]; Echinidae [WoRMS]; Nematoda [Nematoden] [WoRMS]
Geografische termen: Antarctica [gazetteer]; PSW, Scotia Sea [gazetteer]; PSW, Weddell Sea [gazetteer]
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- Koninklijk Belgisch Instituut voor Natuurwetenschappen; Departement Invertebraten; Afdeling Recente Invertebraten, meer
- MARBIOL: Universiteit Gent; Faculteit Wetenschappen; Vakgroep Biologie; Afdeling Mariene Biologie, meer
- BIOMAR: Université Libre de Bruxelles; Centre Interuniversitaire de Biologie Marine (ULB - UMH); Biologie Marine - ULB, meer
- Université de Liège; Faculté des Sciences; Département des Sciences et Gestion de l'Environnement; Laboratoire d'Océanologie, meer
- BELSPO: Federaal Wetenschapsbeleid, meer, financier
|[ kaartje ]
The Convention on Biological Diversity has critically increased the awareness of the general lack of knowledge about the world biodiversity, especially the marine biodiversity. On the other hand, the implementation of the Madrid Protocol on Environmental Protection of the Antarctic requires a more comprehensive knowledge of Antarctic marine biodiversity and a better accessibility to the widely scattered biodiversity information.
Current research programmes in Antarctic biology focussed in particular on the structure and dynamics of coastal and shelf ecosystems in the perspective of global changes (SCAR-EASIZ), and on the biodiversity of the totally unknown deep-sea habitats (ANDEEP).
Finally, several worldwide initiatives (like GBIF) have stressed the need for developing efficiently the biodiversity information management and promoted the development of comprehensive biodiversity databases.
- Project description
The main goal of this study is to investigate the biodiversity of the Antarctic benthos through three representative faunal groups of different size categories: the nematodes (meiobenthos), the amphipod crustaceans (macrobenthos) and the echinids (megabenthos).
The meiofaunal NEMATODES are in terms of abundance the most important metazoan group in marine sediments. As their communities contain a large number of species, usually an order of magnitude greater than any other meiobenthic taxon, they are particularly suitable for tackling biodiversity and biogeography issues. AMPHIPODS appear to be the most speciose animal group in Antarctic seas, and one of the most diverse in terms of modes of life, habitats, trophic types, and size spectra. Finally ECHINOIDS constitute an often abundant and widely distributed component of the Antarctic communities, and offer important opportunities for symbiotic diversity.
Relying on the exploration of new or poorly known Antarctic regions, this study will first concentrate on the understanding of the nature and distribution of biodiversity, i.e. to inventory the faunal components and to analyse their distribution with respect to several gradients (depth, latitude or differences between basin).
The second objective aims at better understand the ecofunctional role of biodiversity by analysing different dynamic aspects such as niche diversity, trophic types and role in food webs, reproduction patterns or biomass turnover.
The third objective concerns the development of a Biodiversity Information System for the Antarctic benthos, to make more effectively available to the scientific community and other users, the biodiversity knowledge acquired during previous studies or newly gained from the proposed research. This information system will include mapping applications and will rely on the extant or development databases of the three benthic taxa.
Field sampling of new material will benefit from different international Antarctic campaigns onboard RV Polarstern such as the ANDEEP or LAMPOS cruises in the Weddell Sea and along the Scotia Arc. Sampled material will be preserved for morphological and taxonomic purposes, for molecular approach, and for stable isotope analyses by mass spectrometry. It will also be compared to existing museum collections.
Living material will also be collected and kept in cold rooms, in order to analyse different ecological parameters such as food preferences, feeding or growth rates.
- Interaction between the different partners
Partners 1, 2 & 3 will collaborate in field sampling and in the analysis and integration of data of common significance, each partner focussing on a different group of zoobenthos representative for a size class.
Partner 4 will work together with the other three ones in analysing stable isotopes on collected material, in order to delineate carbon and nitrogen fluxes within Antarctic benthic ecosystems.
The four partners will coll
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- Antarctic Amphipod Crustaceans: Ant'Phipoda Database (BIANZO), meer
- Antarctic Echinoids: an interactive database, meer
- NeMys, meer