Estimation ot the heterotrophic activity in three ecosystems with different trophic degrees.
Heterotrophic bacterial activity on glucose was studied in three man made lakes applying kinetics parameters method of Wright & Hobbie (1966, 1965). Seasonal patterns where established and comparisons were made with primary production, chlorophyll a concentrations and heterotrophic viable ba...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
2024
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/eco/article/view/8040 |
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I48-R154-article-80402024-12-20T15:02:59Z Estimation ot the heterotrophic activity in three ecosystems with different trophic degrees. Estimación de la actividad heterotrófica en tres ecosistemas acuáticos con distinto nivel de trofismo Mariazzi, Aldo A. Romero, Maria C. Heterotrophic bacterial activity on glucose was studied in three man made lakes applying kinetics parameters method of Wright & Hobbie (1966, 1965). Seasonal patterns where established and comparisons were made with primary production, chlorophyll a concentrations and heterotrophic viable bacteria. Results suggest that Vmax and Tt are closely related to the trophic degree of the water bodies studied. In the eutrophic Embalse del Río Tercero Vmax was maximun during summer (March) with 2,083 μg 1-1 h-1, in coincidence with a Peridinium sp bloom, and Tt reach the minimun value of 4,1 hours. Primary production and chlorophyll a concentrations showed a similar pattern than Vmax, but maximun values of primary production where found between November and February. Vmax values where lower in Lago Ramos Mexía, varying between 0,001 μg 1-1 h-1 (winter) and 0,176 μg 1-1 h-1 (summer). . Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2024-12-20 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/8040 Ecosur; 1983: vol. 10, nos. 19-20; 61-77 0325-108X spa https://revistas.unne.edu.ar/index.php/eco/article/view/8040/7494 https://creativecommons.org/licenses/by-nc/4.0 |
| 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 |
| author |
Mariazzi, Aldo A. Romero, Maria C. |
| spellingShingle |
Mariazzi, Aldo A. Romero, Maria C. Estimation ot the heterotrophic activity in three ecosystems with different trophic degrees. |
| author_facet |
Mariazzi, Aldo A. Romero, Maria C. |
| author_sort |
Mariazzi, Aldo A. |
| title |
Estimation ot the heterotrophic activity in three ecosystems with different trophic degrees. |
| title_short |
Estimation ot the heterotrophic activity in three ecosystems with different trophic degrees. |
| title_full |
Estimation ot the heterotrophic activity in three ecosystems with different trophic degrees. |
| title_fullStr |
Estimation ot the heterotrophic activity in three ecosystems with different trophic degrees. |
| title_full_unstemmed |
Estimation ot the heterotrophic activity in three ecosystems with different trophic degrees. |
| title_sort |
estimation ot the heterotrophic activity in three ecosystems with different trophic degrees. |
| description |
Heterotrophic bacterial activity on glucose was studied in three man made lakes applying kinetics parameters method of Wright & Hobbie (1966, 1965). Seasonal patterns where established and comparisons were made with primary production, chlorophyll a concentrations and heterotrophic viable bacteria. Results suggest that Vmax and Tt are closely related to the trophic degree of the water bodies studied. In the eutrophic Embalse del Río Tercero Vmax was maximun during summer (March) with 2,083 μg 1-1 h-1, in coincidence with a Peridinium sp bloom, and Tt reach the minimun value of 4,1 hours. Primary production and chlorophyll a concentrations showed a similar pattern than Vmax, but maximun values of primary production where found between November and February. Vmax values where lower in Lago Ramos Mexía, varying between 0,001 μg 1-1 h-1 (winter) and 0,176 μg 1-1 h-1 (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/8040 |
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2025-05-17T05:12:36Z |
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