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The sandy beach meiofauna and free-living nematodes from De Panne (Belgium)
Gheskiere, T.; Hoste, E.; Kotwicki, L.; Degraer, S.; Vanaverbeke, J.; Vincx, M. (2002). The sandy beach meiofauna and free-living nematodes from De Panne (Belgium). Bull. Kon. Belg. Inst. Natuurwet. Biologie 72(Suppl.): 43-49
In: Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Biologie = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Biologie. Koninklijk Belgisch Instituut voor Natuurwetenschappen: Bruxelles. ISSN 0374-6429, meer
Ook verschenen in:
Peeters, M.; Van Goethem, J.L. (Ed.) (2002). Belgian Fauna and Alien Species: Verhandelingen van het Symposium Status en Trends van de Belgische Fauna met bijzondere aandacht voor uitheemse soorten = Belgian Fauna and Alien Species: Proceedings of the Symposium Status and Trends of the Belgian Fauna with a particular emphasis on alien species. Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Biologie = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Biologie, 72(Suppl.). Koninklijk Belgisch Instituut voor Natuurwetenschappen: Brussel. 297 pp., meer
Peer reviewed article  
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Trefwoorden
    Aquatic communities > Benthos > Meiobenthos
    Aquatic organisms > Marine organisms
    Belgium
    Biota > Fauna
    Organisms > Eukaryotes > Animals > Invertebrates > Nematoda
    Soil types > Soil types (textural) > Sandy soils
    Topographic features > Landforms > Coastal landforms > Beaches
    Nematoda [WoRMS]
    België [Marine Regions]; De Panne [Marine Regions]
    Marien/Kust
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Abstract
    Despite their rather barren and arid appearance, European sandy beaches harbour a highly diverse fauna and flora and some of them are even highly productive. In contrast to tropical sandy beaches little is known about the structural and functional diversity of the different benthic components. This study aims to investigate the structural diversity of the meiobenthos, emphasizing on free-living marine nematodes on a Belgian sandy beach.The samples were collected on the sandy beach of De Panne in the swept prism, i.e. the zone between highest and lowest watermark, subjected to tidal inundation. The beach, situated before the nature reserve "Westhoek Reservaat", is a macrotidal, dissipative, little exposed beach with fine-grained sediment. Within the meiobenthos, 11 taxa were recognized. Free-living Nematoda were the dominant (75.8 %-97.1 %) metazoans in all the stations, mostly followed by Turbellaria. The meiobenthic densities increased towards the low water mark as a consequence of macroscaled physical gradients. A patchy distribution of meiobenthos is primarily caused by gradients on micro- scale. Within the nematodes a total of 87 species, belonging to 67 genera, were recognized. Multivariate and statistical techniques in combinations with indicator species analysis revealed nematode communities associated with dry sand (Rhabditis sp.1 and Axonolaimus helgolandicus), upper (Trissonchulus sp.1 and Dichromadora hyalocheile) and lower littoral (Odonthophora phalarata, Odonthophora rectangular, Chaetonema riemanni and Cyartonema elegans).
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