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Comparison of benthic and pelagic suspension feeding in shallow water habitats of the Northeastern Baltic Sea
Lauringson, V.; Kotta, J.; Orav-Kotta, H.; Kotta, I.; Herkül, K.; Põllumäe, A. (2009). Comparison of benthic and pelagic suspension feeding in shallow water habitats of the Northeastern Baltic Sea, in: Proceedings of the 43rd European Marine Biology Symposium, The Azores Islands (Portugal), 8-12 September 2008. Marine Ecology (Berlin), 30(S1): pp. 43-55. dx.doi.org/10.1111/j.1439-0485.2009.00302.x
In: (2009). Proceedings of the 43rd European Marine Biology Symposium, The Azores Islands (Portugal), 8-12 September 2008. Marine Ecology (Berlin), 30(S1). Wiley: London. 202 pp.
In: Marine Ecology (Berlin). Blackwell: Berlin. ISSN 0173-9565; e-ISSN 1439-0485, meer
Peer reviewed article  

Beschikbaar in  Auteurs 
Documenttype: Congresbijdrage

Trefwoorden
    Dreissena polymorpha (Pallas, 1771) [WoRMS]; Mytilus trossulus Gould, 1850 [WoRMS]; Marien
Author keywords
    Baltic Sea; Dreissena polymorpha; eutrophication; grazing; Mytilus trossulus; phytoplankton; suspension feeders; zooplankton

Auteurs  Top 
  • Lauringson, V.
  • Kotta, J.
  • Orav-Kotta, H.
  • Kotta, I.
  • Herkül, K.
  • Põllumäe, A.

Abstract
    Combining field experiments with the biomass distribution data of dominant suspension feeders we compared the benthic and pelagic suspension feeding rates in shallow non-tidal brackish water coastal habitats. We found that pelagic grazing exceeded benthic grazing in almost all cases, on average from 14 to 4819 times depending on the site. Benthic grazing rates were related to site-specific environmental parameters and showed no relationship with water chlorophyl a (Chl a) content, whereas pelagic grazing rates varied both spatially and temporally and were related to water Chl a content. Our results indicate that in several shallow coastal habitats, pelagic suspension feeding substantially exceeds benthic suspension feeding. This suggests that pelagic recycling is higher than the amounts of energy redirected from pelagic to benthic food webs by benthic suspension feeders. These results increase our knowledge of the energy flows in coastal ecosystems.

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