Seasonal changes in biomass of Eichhornia crassipes (Mart.) Solms and its fauna in a pond of the Chaco Province (Argentina)

Biomass determinations were made in natural stands of Eichhornia crassipes throughout two year. The samples were monthly collected with a 62 cm diameter ring. The values indicated in the text are the averages of five replicates taken in a transection from a littoral to a central position.The annual...

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Detalles Bibliográficos
Autores principales: Neiff, Juan José, Poi de Neiff, Alicia
Formato: Artículo revista
Lenguaje:Español
Publicado: Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2024
Materias:
Eichhornia crassipes
Chaco (Argentina)
fitofágos
fitomasa
laguna
Acceso en línea:https://revistas.unne.edu.ar/index.php/eco/article/view/7357
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-7357
record_format ojs
spelling I48-R154-article-73572024-02-16T12:40:27Z Seasonal changes in biomass of Eichhornia crassipes (Mart.) Solms and its fauna in a pond of the Chaco Province (Argentina) Cambios estacionales en la biomasa de Eichhornia crassipes (Mart.) Somls y su fauna en una laguna del Chaco (Argentina) Neiff, Juan José Poi de Neiff, Alicia Eichhornia crassipes Chaco (Argentina) fitofágos fitomasa laguna Biomass determinations were made in natural stands of Eichhornia crassipes throughout two year. The samples were monthly collected with a 62 cm diameter ring. The values indicated in the text are the averages of five replicates taken in a transection from a littoral to a central position.The annual net production was obtained from the difference between the final and initial biomass.Four functional compartments were considering: total standing crop; green leaves, roots and rhizomes biomass; dead attached leaves and litter. The greatest total standing crop found in mid summer, was 25 Tn/ha. In the same period, the máximum biomass was recorded. The roots and rhizomes have representad between 31 and 55% of the biomass.The máximum rate of biomass change was found in setember (6,30 Tn/ha).Losses by death (attached leaves and litter) were small before the seasonal máximum plant biomass. The litter ocurring in spring time, has been produced during the last winter.The fauna biomass in the Barranqueras pond was much lower than in other subtropical lakes (8 g/m3 in winter and 16 g/m3 in summer).The high losses from a E. crassipes community are related with the fast activity of the fitofagous during the summer. Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2024-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.unne.edu.ar/index.php/eco/article/view/7357 10.30972/eco.11217357 Ecosur; 1984: vol. 11, nos. 21-22; 51-60 0325-108X spa https://revistas.unne.edu.ar/index.php/eco/article/view/7357/6790
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
topic Eichhornia crassipes
Chaco (Argentina)
fitofágos
fitomasa
laguna
spellingShingle Eichhornia crassipes
Chaco (Argentina)
fitofágos
fitomasa
laguna
Neiff, Juan José
Poi de Neiff, Alicia
Seasonal changes in biomass of Eichhornia crassipes (Mart.) Solms and its fauna in a pond of the Chaco Province (Argentina)
topic_facet Eichhornia crassipes
Chaco (Argentina)
fitofágos
fitomasa
laguna
author Neiff, Juan José
Poi de Neiff, Alicia
author_facet Neiff, Juan José
Poi de Neiff, Alicia
author_sort Neiff, Juan José
title Seasonal changes in biomass of Eichhornia crassipes (Mart.) Solms and its fauna in a pond of the Chaco Province (Argentina)
title_short Seasonal changes in biomass of Eichhornia crassipes (Mart.) Solms and its fauna in a pond of the Chaco Province (Argentina)
title_full Seasonal changes in biomass of Eichhornia crassipes (Mart.) Solms and its fauna in a pond of the Chaco Province (Argentina)
title_fullStr Seasonal changes in biomass of Eichhornia crassipes (Mart.) Solms and its fauna in a pond of the Chaco Province (Argentina)
title_full_unstemmed Seasonal changes in biomass of Eichhornia crassipes (Mart.) Solms and its fauna in a pond of the Chaco Province (Argentina)
title_sort seasonal changes in biomass of eichhornia crassipes (mart.) solms and its fauna in a pond of the chaco province (argentina)
description Biomass determinations were made in natural stands of Eichhornia crassipes throughout two year. The samples were monthly collected with a 62 cm diameter ring. The values indicated in the text are the averages of five replicates taken in a transection from a littoral to a central position.The annual net production was obtained from the difference between the final and initial biomass.Four functional compartments were considering: total standing crop; green leaves, roots and rhizomes biomass; dead attached leaves and litter. The greatest total standing crop found in mid summer, was 25 Tn/ha. In the same period, the máximum biomass was recorded. The roots and rhizomes have representad between 31 and 55% of the biomass.The máximum rate of biomass change was found in setember (6,30 Tn/ha).Losses by death (attached leaves and litter) were small before the seasonal máximum plant biomass. The litter ocurring in spring time, has been produced during the last winter.The fauna biomass in the Barranqueras pond was much lower than in other subtropical lakes (8 g/m3 in winter and 16 g/m3 in summer).The high losses from a E. crassipes community are related with the fast activity of the fitofagous during the summer.
publisher Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
publishDate 2024
url https://revistas.unne.edu.ar/index.php/eco/article/view/7357
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AT poideneiffalicia seasonalchangesinbiomassofeichhorniacrassipesmartsolmsanditsfaunainapondofthechacoprovinceargentina
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first_indexed 2024-08-21T22:39:06Z
last_indexed 2024-08-21T22:39:06Z
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