2024-03-29T02:16:28Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/886272016-02-17T22:31:49Zcom_10261_132com_10261_8col_10261_385
Barrón, Cristina
Duarte, Carlos M.
2013-12-13T12:11:12Z
2013-12-13T12:11:12Z
2009
Marine Ecology - Progress Series 374: 75-84 (2009)
http://hdl.handle.net/10261/88627
10.3354/meps07715
We examined annual nutrient changes (nitrate, phosphate and ammonium) and the net dissolved organic carbon (DOC), nitrogen (DON) and phosphorus (DOP) release using in situ benthic incubations in a Posidonia oceanica meadow and in unvegetated sediments of Magalluf Bay (Mallorca Island, Spain) at monthly intervals. We also examined the role of the P. oceanica meadow in the C:N:P ratio transformations by comparing the ratios between the inorganic and dissolved organic fluxes in the seagrass ecosystem and those in the plant material. Our results indicate that P. oceanica communities enhance DOC fluxes relative to adjacent unvegetated sediments. The net DOC release from the P. oceanica meadow represents 71% of the net community production. The C:N:P ratio in the flux of dissolved organic material (DOM) from the P. oceanica community (1450:69:1) exceeded the C:N:P ratio in the DOM flux of unvegetated sediment communities. The high flux of DOC release from this seagrass community might be enriched in carbon compounds, as these plants produce nonstructural carbohydrates in excess. © Inter-Research 2009.
eng
openAccess
Dissolved organic matter release in a Posidonia oceanica meadow
artículo