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Carbon and nitrogen content of Laminaria saccharina in the eastern English Channel: biometrics and seasonal variations
Gevaert, F.; Davoult, D.; Creach, A.; Kling, R.; Janquin, M.-A.; Seuront, L.; Lemoine, Y. (2001). Carbon and nitrogen content of Laminaria saccharina in the eastern English Channel: biometrics and seasonal variations. J. Mar. Biol. Ass. U.K. 81(5): 727-734. https://dx.doi.org/10.1017/S0025315401004532
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, more
Peer reviewed article  
Available in  Authors 
Keywords
    Biometrics
    Chemical elements > Nonmetals > Atmospheric gases > Nitrogen
    Chemical elements > Nonmetals > Carbon
    Temporal variations > Periodic variations > Seasonal variations
    Laminaria saccharina (Linnaeus) J.V.Lamouroux, 1813 [WoRMS]
    ANE, English Channel [Marine Regions]
    Marine/Coastal
Authors  Top 
  • Gevaert, F., more
  • Davoult, D., more
  • Creach, A.
  • Kling, R.
  • Janquin, M.-A.
  • Seuront, L.
  • Lemoine, Y.
Abstract
    Fresh weight (FW), dry weight (DW), carbon and nitrogen content were measured for specimens of Laminaria saccharina (Heterokontophyta: Phaeophyceae) sampled in the eastern English Channel in order to conduct a biometrical study. The aim was to relate carbon and nitrogen masses of the algae to a simple and rapid morphological measurement of the total length of the sporophyte. These relationships were highly significant and appeared very useful to express the standing biomass of L. saccharina in terms of carbon or nitrogen and then to consider dynamic processes such as primary production. Variations in tissue carbon (C) and nitrogen (N) were examined over a complete seasonal cycle. Average carbon and nitrogen content ranged from 23·9 to 31·4% and 2·23 to 3·42% of the total dry weight, respectively. Variations in C/N ratio showed a clear seasonal pattern with an increase in the early spring corresponding to strong photosynthesis and growth.
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