Articles | Volume 17, issue 12
https://doi.org/10.5194/bg-17-3299-2020
https://doi.org/10.5194/bg-17-3299-2020
Research article
 | 
30 Jun 2020
Research article |  | 30 Jun 2020

Dynamics of environmental conditions during the decline of a Cymodocea nodosa meadow

Mirjana Najdek, Marino Korlević, Paolo Paliaga, Marsej Markovski, Ingrid Ivančić, Ljiljana Iveša, Igor Felja, and Gerhard J. Herndl

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Cited articles

Agostini, S., Pergent, G., and Marchand, B.: Growth and primary production of Cymodocea nodosa in a coastal lagoon, Aquat. Bot., 76, 185–193, 2003. 
Alcoverro, T., Manzanera, M., and Romero, J.: Annual metabolic carbon balance of the seagrass Posidonia oceanica: the importance of carbohydrate reserves, Mar. Ecol.-Prog. Ser., 211, 105–116, 2001. 
Arndt, S., Jørgensen, B. B., LaRowe, D. E., Middelburg, J. J., Pancost, R. D., and Regnier, P.: Quantifying the degradation of organic matter in marine sediments: A review and synthesis, Earth-Sci. Rev., 123, 53–86, 2013. 
Beca-Carretero, P., Guihéneuf, F., Marín-Guirao, L., Bernardeau-Esteller, J., García-Muñoz, R., Stengel, D. B., and Ruiz, J. M.: Effects of an experimental heat wave on fatty acid composition in two Mediterranean seagrass species, Mar. Pollut. Bull., 134, 27–37, 2018. 
Beca-Carretero, P., Guihéneuf, F., Winters, G., and Stengel, D. B.: Depth-induced adjustment of fatty acid and pigment composition suggests high biochemical plasticity in the tropical seagrass Halophila stipulacea, Mar. Ecol.-Prog. Ser., 608, 105–117, 2019. 
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Short summary
The response of Cymodocea nodosa to environmental changes was reported during a 15-month period. The meadow decline was triggered in spring by the simultaneous reduction of available light in the water column and the creation of anoxic conditions in the rooted area. This disturbance was critical for the plant since it took place during its recruitment phase when metabolic needs are maximal and stored reserves minimal. The loss of such habitat-forming seagrass is a major environmental concern.
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