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Abstract:

Samborombón Bay is the most extensive mixohaline wetland of Argentina (244000 ha.). It has an extension of 150 km. along the occidental coast of the exterior zone of the Río de la Plata, from Punta Piedras (35°27′ S; 56°45′ O) to Punta Rasa (36°22′ S; 56°;35prime; O). The trophic state of the rivers and channels that cross this wetland was evaluated by the determination of total nitrogen (N t) and total phosphorus (Pt) concentrations in ten stations situated from north to south of the bay. Samples were grouped according to seasonal variability, separating two periods, low water period and high water period. A hypertrophic state was observed in most of the analyzed stations, phosphorus being the limiting nutrient in almost every case in both periods. In addition to the seasonal variation in the nutrient concentrations, a spatial variation was observed in a north to south direction. Physico-chemical parameters were taken into account and, along with the nutrient concentration values, were analyzed by PCA (Principal Component Analysis), which suggested the existence of two groups with different characteristics. The increase in nutrients input in this ecosystem could cause alterations on the productivity of the area and on the activities of the region such as coastal fisheries. © Asociación Ibérica de Limnología.

Registro:

Documento: Artículo
Título:Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina)
Autor:Schenone, N.; Volpedo, A.; Cirelli, A.F.
Filiación:Centro de Estudios Transdisciplinarios del Agua (CETA), Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Av. Chorroarín 280, CP1427 Buenos Aires, Argentina
Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, CP1428 Buenos Aires, Argentina
Palabras clave:Bahía Samborombón; Myxohaline wetland; Nutrients; concentration (composition); hypertrophic environment; nutrient dynamics; physicochemical property; principal component analysis; river channel; seasonal variation; spatial variation; trophic status; wetland; Argentina; Buenos Aires [Argentina]; Rio de la Plata; Samborombon Bay; South America
Año:2008
Volumen:27
Número:1
Página de inicio:143
Página de fin:150
Título revista:Limnetica
Título revista abreviado:Limnetica
ISSN:02138409
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02138409_v27_n1_p143_Schenone

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Citas:

---------- APA ----------
Schenone, N., Volpedo, A. & Cirelli, A.F. (2008) . Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina) . Limnetica, 27(1), 143-150.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02138409_v27_n1_p143_Schenone [ ]
---------- CHICAGO ----------
Schenone, N., Volpedo, A., Cirelli, A.F. "Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina) " . Limnetica 27, no. 1 (2008) : 143-150.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02138409_v27_n1_p143_Schenone [ ]
---------- MLA ----------
Schenone, N., Volpedo, A., Cirelli, A.F. "Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina) " . Limnetica, vol. 27, no. 1, 2008, pp. 143-150.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02138409_v27_n1_p143_Schenone [ ]
---------- VANCOUVER ----------
Schenone, N., Volpedo, A., Cirelli, A.F. Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina) . Limnetica. 2008;27(1):143-150.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02138409_v27_n1_p143_Schenone [ ]