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Are Antarctic suspension-feeding communities different from those elsewhere in the world?
|Authors:||Gili, Josep Maria ; Coma, Rafael ; Orejas, Covadonga ; López-González, Pablo J.; Zabala, Mikel|
|Citation:||Polar Biology 24(7): 473-485 (2001)|
|Abstract:||This paper reviews the trophic ecology of benthic suspension feeders in Antarctic shelf communities, studied within SCAR's EASIZ Programme, in comparison with published information from other seas. Dense benthic suspension-feeder communities capture large quantities of particles and may directly regulate primary, and indirectly, secondary production in littoral food chains. Most work has been performed in temperate and tropical seas; however, little is known about suspension feeders in cold environments. Recent studies on Antarctic littoral benthic suspension feeders suggest the period of winter inactivity may last only a few weeks. This contrasts with the hypothesis that in Antarctic communities there is a prolonged period of minimal activity lasting at least 6 months during the austral winter. Results from other oceans may explain how dense benthic communities could develop under such conditions. Alternative food sources, i.e. the "fine fraction", sediment resuspension, lateral advection and efficient food assimilation may play a significant role in the development of suspension-feeder dominated, very diversified, high biomass and three-dimensionally structured communities on the Antarctic shelf|
|Description:||This paper presents results of the Midterm Symposium of the SCAR programme "Ecology of the Antartic sea Ice Zone" (EASIZ).-- 13 páginas, 4 figuras, 1 tabla|
|Publisher version (URL):||https://doi.org/10.1007/978-3-642-59419-9_15|
|Appears in Collections:||(ICM) Artículos|
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