Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina)

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...

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Detalles Bibliográficos
Autor principal: Volpedo, Alejandra
Publicado: 2008
Materias:
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
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02138409_v27_n1_p143_Schenone
http://hdl.handle.net/20.500.12110/paper_02138409_v27_n1_p143_Schenone
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_02138409_v27_n1_p143_Schenone
record_format dspace
spelling paper:paper_02138409_v27_n1_p143_Schenone2023-06-08T15:20:50Z Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina) Volpedo, Alejandra 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 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. Fil:Volpedo, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02138409_v27_n1_p143_Schenone http://hdl.handle.net/20.500.12110/paper_02138409_v27_n1_p143_Schenone
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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
spellingShingle 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
Volpedo, Alejandra
Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina)
topic_facet 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
description 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.
author Volpedo, Alejandra
author_facet Volpedo, Alejandra
author_sort Volpedo, Alejandra
title Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina)
title_short Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina)
title_full Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina)
title_fullStr Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina)
title_full_unstemmed Trophic state and nutrient seasonal variation in the rivers and channels of the Samborombón Bay mixohaline wetland (Argentina)
title_sort trophic state and nutrient seasonal variation in the rivers and channels of the samborombón bay mixohaline wetland (argentina)
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02138409_v27_n1_p143_Schenone
http://hdl.handle.net/20.500.12110/paper_02138409_v27_n1_p143_Schenone
work_keys_str_mv AT volpedoalejandra trophicstateandnutrientseasonalvariationintheriversandchannelsofthesamborombonbaymixohalinewetlandargentina
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