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Community structure of the macroinfauna inhabiting tidal flats characterized by the presence of different species of burrowing bivalves in Southern Chile
Jaramillo, E.; Contreras, H.; Duarte, C. (2007). Community structure of the macroinfauna inhabiting tidal flats characterized by the presence of different species of burrowing bivalves in Southern Chile, in: Relini, G. et al. (Ed.) Biodiversity in Enclosed Seas and Artificial Marine Habitats: Proceedings of the 39th European Marine Biology Symposium, held in Genoa, Italy, 21-24 July 2004. Developments in Hydrobiology, 193: pp. 85-96
In: Relini, G.; Ryland, J. (Ed.) (2007). Biodiversity in Enclosed Seas and Artificial Marine Habitats: Proceedings of the 39th European Marine Biology Symposium, held in Genoa, Italy, 21-24 July 2004. Developments in Hydrobiology, 193. European Marine Biology Symposia, 39. ISBN 978-1-4020-6155-4. 271 pp. https://hdl.handle.net/10.1007/978-1-4020-6156-1, meer
In: Dumont, H.J. (Ed.) Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht. ISSN 0167-8418, meer

Ook gepubliceerd als
  • Jaramillo, E.; Contreras, H.; Duarte, C. (2007). Community structure of the macroinfauna inhabiting tidal flats characterized by the presence of different species of burrowing bivalves in Southern Chile. Hydrobiologia 580(1): 85-96. http://dx.doi.org/10.1007/s10750-006-0463-y, meer

Beschikbaar in  Auteurs 
Documenttype: Congresbijdrage

Trefwoorden
    Aquatic organisms > Burrowing organisms
    Composition > Community composition
    Intertidal flats
    Macrobenthos
    Topographic features > Landforms > Coastal landforms > Tidal flats
    Bivalvia [WoRMS]
    PSW, Chile, Patagonia [Marine Regions]
    Marien
Author keywords
    macroinfauna; bivalves; tidal flats; Southern Chile

Auteurs  Top 
  • Jaramillo, E.
  • Contreras, H.
  • Duarte, C.

Abstract
    Several species of bivalves coexist at the lower intertidal of large tidal flats located in the enclosed or inland coast of the northern area of the Nord-Patagonic archipelagos on the Chilean coast (ca. 40-42°S): Tagelus dombeii (Lamarck), Mulinia edulis (King & Broderip), Venus antiqua King & Broderip, Semele solida (Gray), Gari solida (Gray) and Diplodonta insconspicua Philippi. To explore possible spatial variation in the community structure of the macroinfauna inhabiting sediments with different assemblages of these bivalves, seasonal sampling was carried out during 2003-2004 at two tidal flats of that area. Higher species richness and specimen densities of the macroinfauna occurred in sediments with the higher densities of bivalves, especially in sediments where the deep burrower T. dombeii reaches its greatest abundances. Our results suggest that, apart from presence of bivalves, the burrowing depth of these organisms is also important in promoting the abundance of macroinfauna. Our results are in contrast with earlier conceptualizations for community organization of the soft bottom macroinfauna inhabiting intertidal flats, related to biological interactions occurring among different phyletic groups, such as that arguing that suspension feeding bivalves (such as T. dombeii and V. antiqua) will negatively affect the recruitment of species with planktonic larvae, by filtering them before they become established in the substrate. Thus, it is concluded that beneficial effects of bivalve bioturbation overcome that negative effects on the macroinfauna, although detrimental effects may well occur at bivalve densities higher than those studied here.

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