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A closed-chamber CO2-flux method for estimating intertidal primary production and respiration under emersed conditions
Migné, A.; Davoult, D.; Spilmont, N.; Menu, D.; Boucher, G.; Gattuso, J.-P.; Rybarczyk, H. (2002). A closed-chamber CO2-flux method for estimating intertidal primary production and respiration under emersed conditions. Mar. Biol. (Berl.) 140(4): 865-869. hdl.handle.net/10.1007/s00227-001-0741-1
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Migné, A., more
  • Davoult, D.
  • Spilmont, N.
  • Menu, D.
  • Boucher, G.
  • Gattuso, J.-P.
  • Rybarczyk, H., more

Abstract
    This paper describes a closed-chamber method for measuring CO2 fluxes in intertidal soft sediments during periods of emersion. The method relies on closed-circuit incubations of undisturbed sediment and measurement of CO2 exchanges using an infrared gas analyser. The method was assessed during field experiments, both in light and dark conditions, on an exposed sandy beach and in an estuary. The rates of gross community production measured under moderate irradiance (4.2 mg C m–2 h–1 on the exposed sandy beach and 35 mg C m–2 h–1 in the estuary) are in good agreement with rates reported in the literature. In conjunction with appropriate sampling strategies, this method can be useful for estimating and comparing production of intertidal areas or for assessing factors that influence production.

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