Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay)

The potential colonization by anchored plants (PCAP) and the potential areas for initial coloniza- tion of free floating plants were estimated during the early filling phase for the Yaciretá reservoir. In order to obtain the PCAP, the observed maximum depth of colonization of the anchored macro-...

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Autores principales: Neiff, Juan José, Poi, Alicia Susana Guadalupe, Patiño, Carlos A., Basterra, Nora Indiana
Formato: Artículo
Lenguaje:Inglés
Publicado: Instituto Internacional de Ecología 2022
Materias:
Tropical rivers
Impounding reservoirs
South America
Potential macrophytes colonization
Reservoirs
Reservatórios
Rios tropicais
Colonização potencial por macrófitas
Barragens
América do Sul
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/48856
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RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-48856
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spelling I48-R184-123456789-488562025-03-06T11:07:21Z Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay) Neiff, Juan José Poi, Alicia Susana Guadalupe Patiño, Carlos A. Basterra, Nora Indiana Tropical rivers Impounding reservoirs South America Potential macrophytes colonization Reservoirs Reservatórios Rios tropicais Colonização potencial por macrófitas Barragens América do Sul The potential colonization by anchored plants (PCAP) and the potential areas for initial coloniza- tion of free floating plants were estimated during the early filling phase for the Yaciretá reservoir. In order to obtain the PCAP, the observed maximum depth of colonization of the anchored macro- phytes before impoundment and the hypsographic curves were used. The species inhabiting the pre- impoundment area were classified according to the different bioforms before the inclussion in the analysis. The areal extent of PCAP (from depths between 0-4 m) could reach 275 km2 at 76 m above sea level (current water level), whereas at 82 m above sea level (final filling level) the littoral zone will be increased by about 21.5%. The potential area for geophytes was estimated to be 99 km2 ; 131 km2 for root-floating leaved plants and 120 km2 for submerged plants, at 76 m above sea level. At 82 m above sea level, the geophytes could reach 271 km2 . The data for wind frequency, velocity and fetch, together with depth were used to calculate shallow and sheltered areas in which free floating plants could find favourable conditions to initial colonization. Physical and chemical features recorded at eight stations during the early filling phase are discussed in relation to potential plant development. A colonização potencial por plantas enraizadas (CPPE) e as áreas potenciais de colonização por plantas fluentes livres foram calculadas durante a fase de enchimento do reservatório de Yaciretá. Para obter o CPPE, a máxima profundidade de enraizamento observada previa o fechamento do rio e as curvas ipsográficas foram utilizadas. As espécies presentas na área pré-represamento foram classificadas de acordo com as diferentes bioformas antes da inclusão na análise: A extenção de CPPE (para profundidades entre 0-4 m) poderia alcançar 275 km2 a 76 m acima do nível do mar (nível de água atual), enquanto na cota de 82 m acima do nível do mar (nível de recheio final) a zona litorânea será aumentada em aproximadamente 21,5%. A área potencial para macróficas emersas foi calculada em 99 km2, para as plantas enraizadas com folhas flutuantes em 131 km2, e para as plantas enraizadas submersas em 120 km2, a 76 m acima do nível do mar. A 82 m acima do nível do mar, as macrófitas emersas poderiam alcançar 271 km2. A informação de freqüência, velocidade de ventos, e de fetch, junto com dados de profundidade foram usados para delimitar áreas rasas e abrigadas, nas quais plantas flutuantes libres poderiam encontrar condições favoráveis para iniciar a colonização. As características físicas e químicas obtidas em oito estações de amostragem no início da formação do reservatório são discutidas em relação ao desenvolvimento potencial das macrófitas. 2022-07-07T00:28:11Z 2022-07-07T00:28:11Z 2000-11 Artículo Neiff, Juan José, et al., 2000. Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay). Revista Basileira de Biología. São Carlos: Instituto Nacional de Ecología, vol. 60, no. 4, p. 615-626. ISSN-e 1678-4375. 1519-6984 http://repositorio.unne.edu.ar/handle/123456789/48856 eng https://doi.org/10.1590/S0034-71082000000400011 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Instituto Internacional de Ecología Revista Brasileira de Biología, 2000, vol. 60, no. 4, p. 615-626.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Tropical rivers
Impounding reservoirs
South America
Potential macrophytes colonization
Reservoirs
Reservatórios
Rios tropicais
Colonização potencial por macrófitas
Barragens
América do Sul
spellingShingle Tropical rivers
Impounding reservoirs
South America
Potential macrophytes colonization
Reservoirs
Reservatórios
Rios tropicais
Colonização potencial por macrófitas
Barragens
América do Sul
Neiff, Juan José
Poi, Alicia Susana Guadalupe
Patiño, Carlos A.
Basterra, Nora Indiana
Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay)
topic_facet Tropical rivers
Impounding reservoirs
South America
Potential macrophytes colonization
Reservoirs
Reservatórios
Rios tropicais
Colonização potencial por macrófitas
Barragens
América do Sul
description The potential colonization by anchored plants (PCAP) and the potential areas for initial coloniza- tion of free floating plants were estimated during the early filling phase for the Yaciretá reservoir. In order to obtain the PCAP, the observed maximum depth of colonization of the anchored macro- phytes before impoundment and the hypsographic curves were used. The species inhabiting the pre- impoundment area were classified according to the different bioforms before the inclussion in the analysis. The areal extent of PCAP (from depths between 0-4 m) could reach 275 km2 at 76 m above sea level (current water level), whereas at 82 m above sea level (final filling level) the littoral zone will be increased by about 21.5%. The potential area for geophytes was estimated to be 99 km2 ; 131 km2 for root-floating leaved plants and 120 km2 for submerged plants, at 76 m above sea level. At 82 m above sea level, the geophytes could reach 271 km2 . The data for wind frequency, velocity and fetch, together with depth were used to calculate shallow and sheltered areas in which free floating plants could find favourable conditions to initial colonization. Physical and chemical features recorded at eight stations during the early filling phase are discussed in relation to potential plant development.
format Artículo
author Neiff, Juan José
Poi, Alicia Susana Guadalupe
Patiño, Carlos A.
Basterra, Nora Indiana
author_facet Neiff, Juan José
Poi, Alicia Susana Guadalupe
Patiño, Carlos A.
Basterra, Nora Indiana
author_sort Neiff, Juan José
title Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay)
title_short Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay)
title_full Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay)
title_fullStr Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay)
title_full_unstemmed Prediction of colonization by macrophytes in the Yaciretá reservoir of the Paraná river (Argentina and Paraguay)
title_sort prediction of colonization by macrophytes in the yaciretá reservoir of the paraná river (argentina and paraguay)
publisher Instituto Internacional de Ecología
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/48856
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