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Abstract:

We present a comparative analysis of the biomass dynamics of the two dominant Spartina plant species in South West Atlantic saltmarshes: Spartina densiflora Brong. (high intertidal zone) and Spartina alterniflora Loesel. (mid-low intertidal zone). We assessed aboveground biomass, live: dead ratios, net production, mortality and turnover rates, and then used this information to understand if saltmarshes dominated by one or the other Spartina species have different ecosystemic roles in the recycling of organic matter. Through field sampling we found that S. densiflora had larger live, dead and total biomass than S. alterniflora. When comparing within each species, S. alterniflora had larger live than dead biomass for most of the year, while S. densiflora had more dead than live biomass. Through the Weigert and Evans (1964) net aerial primary production (NAPP) estimating method we found that S. densiflora had larger annual NAPP, annual mortality and live turnover rates than S. alterniflora. In both species the amount of NAPP was similar to the amount of annual mortality. These results suggest that S. densiflora aboveground biomass is a carbon accumulation zone, while S. alterniflora is a carbon recycling one. © 2014 Elsevier B.V.

Registro:

Documento: Artículo
Título:Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation
Autor:Montemayor, D.I.; Addino, M.; Valiñas, M.; Fanjul, E.; Alvarez, M.F.; Iribarne, O.O.
Filiación:Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, CONICET, Universidad Nacional de Mar del Plata, CC 573, Correo Central, Mar del Plata, Argentina
Estación de Fotobiología Playa Unión, Rawson, Chubut, Argentina
Laboratorio Cuenca del Salado. Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA), CONICET, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
Palabras clave:Aboveground biomass; Mortality; Primary production; Spartina alterniflora; Spartina densiflora; aboveground biomass; carbon cycle; dominance; intertidal environment; net primary production; primary production; saltmarsh; seagrass; Atlantic Ocean; Atlantic Ocean (Southwest); Spartina; Spartina alterniflora; Spartina densiflora
Año:2015
Volumen:120
Número:PB
Página de inicio:201
Página de fin:204
DOI: http://dx.doi.org/10.1016/j.aquabot.2014.05.017
Título revista:Aquatic Botany
Título revista abreviado:Aquatic Bot.
ISSN:03043770
CODEN:AQBOD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043770_v120_nPB_p201_Montemayor

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Citas:

---------- APA ----------
Montemayor, D.I., Addino, M., Valiñas, M., Fanjul, E., Alvarez, M.F. & Iribarne, O.O. (2015) . Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation. Aquatic Botany, 120(PB), 201-204.
http://dx.doi.org/10.1016/j.aquabot.2014.05.017
---------- CHICAGO ----------
Montemayor, D.I., Addino, M., Valiñas, M., Fanjul, E., Alvarez, M.F., Iribarne, O.O. "Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation" . Aquatic Botany 120, no. PB (2015) : 201-204.
http://dx.doi.org/10.1016/j.aquabot.2014.05.017
---------- MLA ----------
Montemayor, D.I., Addino, M., Valiñas, M., Fanjul, E., Alvarez, M.F., Iribarne, O.O. "Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation" . Aquatic Botany, vol. 120, no. PB, 2015, pp. 201-204.
http://dx.doi.org/10.1016/j.aquabot.2014.05.017
---------- VANCOUVER ----------
Montemayor, D.I., Addino, M., Valiñas, M., Fanjul, E., Alvarez, M.F., Iribarne, O.O. Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation. Aquatic Bot. 2015;120(PB):201-204.
http://dx.doi.org/10.1016/j.aquabot.2014.05.017