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The balance of nutrient losses and gains in seagrass meadows
Hemminga, M.A.; Harrison, P.G.; van Lent, F. (1991). The balance of nutrient losses and gains in seagrass meadows. Mar. Ecol. Prog. Ser. 71: 85-96
In: Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe. ISSN 0171-8630; e-ISSN 1616-1599, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Anatomical structures > Body organs > Plant organs > Leaves
    Chemical compounds > Nitrogen compounds > Ammonia
    Chemical compounds > Nitrogen compounds > Nitrates
    Chemical reactions > Denitrification
    Cycles > Chemical cycles > Geochemical cycle > Biogeochemical cycle > Nutrient cycles
    Dietary deficiencies > Nutrient deficiency
    Flora > Weeds > Marine organisms > Seaweeds > Sea grass
    Ingestion
    Population characteristics > Biomass
    Population functions > Growth
    Temporal variations > Periodic variations > Seasonal variations
    Zostera marina Linnaeus, 1753 [WoRMS]
    Marien/Kust
Auteurs  Top 
  • Hemminga, M.A., meer
  • Harrison, P.G.
  • van Lent, F.
Abstract
    A series of processes lead to nutrient losses from the seagrass bed. Export of leaves and leaf fragments with currents, leaching losses from photosynthetically active leaves and from senescent and dead plant material, and nutrient transfer by mobile foraging animals, are processes specific to seagrass meadows; in addition, the nutrient losses are aggravated by 2 processes commonly occurring in marine sediments; denitrification and diffusion of nutrients from the sediments to the overlying water column. The persistence in time of most seagrass meadows points to an existing balance between nutrient losses and gains. Three processes may contribute to the replenishment of nutrients; nitrogen-fixation, sedimentation and nutrient uptake by the leaves.
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