Modelling periphyton dynamics in running water

The short-term biomass dynamics of periphyton communities in running water is characterized by deep variations. This temporal variability is mainly produced by changes in running water velocity. The shear force caused by the friction of water over the surface of the periphyton produces a removal of...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Saravia, L.A., Momo, F., Boffi Lissin, L.D.
Formato:	JOUR
Materias:	Biomass dynamics Community Flow velocity Lotic ecosystems Periphyton models Streams biomass community dynamics periphyton
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03043800_v114_n1_p35_Saravia
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_03043800_v114_n1_p35_Saravia
record_format	dspace
spelling	todo:paper_03043800_v114_n1_p35_Saravia2023-10-03T15:20:02Z Modelling periphyton dynamics in running water Saravia, L.A. Momo, F. Boffi Lissin, L.D. Biomass dynamics Community Flow velocity Lotic ecosystems Periphyton models Streams biomass community dynamics periphyton The short-term biomass dynamics of periphyton communities in running water is characterized by deep variations. This temporal variability is mainly produced by changes in running water velocity. The shear force caused by the friction of water over the surface of the periphyton produces a removal of biomass and creates open sites for colonization. Running water also brings new suspended algae that can establish on open sites. An increase in the velocity of the water can also improve the renewal of nutrients in depleted areas and the elimination of waste products, producing higher reproductive rates. In this paper, we have developed a model of periphyton biomass dynamics taking the water velocity and nutrient concentration as external driving variables influencing immigration, removal and reproductive rate of the algae. We fitted the model to field data encompassing high and low water velocities and different seasons. We have qualitatively compared the parameters obtained from different situations with the expected ones based on bibliographic information. The model has shown a good fit to field data and parameters were similar to expected ones, giving evidence that the model provides a good description for the processes that dominate the periphyton dynamics in running waters. Fil:Saravia, L.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Momo, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03043800_v114_n1_p35_Saravia
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Biomass dynamics Community Flow velocity Lotic ecosystems Periphyton models Streams biomass community dynamics periphyton
spellingShingle	Biomass dynamics Community Flow velocity Lotic ecosystems Periphyton models Streams biomass community dynamics periphyton Saravia, L.A. Momo, F. Boffi Lissin, L.D. Modelling periphyton dynamics in running water
topic_facet	Biomass dynamics Community Flow velocity Lotic ecosystems Periphyton models Streams biomass community dynamics periphyton
description	The short-term biomass dynamics of periphyton communities in running water is characterized by deep variations. This temporal variability is mainly produced by changes in running water velocity. The shear force caused by the friction of water over the surface of the periphyton produces a removal of biomass and creates open sites for colonization. Running water also brings new suspended algae that can establish on open sites. An increase in the velocity of the water can also improve the renewal of nutrients in depleted areas and the elimination of waste products, producing higher reproductive rates. In this paper, we have developed a model of periphyton biomass dynamics taking the water velocity and nutrient concentration as external driving variables influencing immigration, removal and reproductive rate of the algae. We fitted the model to field data encompassing high and low water velocities and different seasons. We have qualitatively compared the parameters obtained from different situations with the expected ones based on bibliographic information. The model has shown a good fit to field data and parameters were similar to expected ones, giving evidence that the model provides a good description for the processes that dominate the periphyton dynamics in running waters.
format	JOUR
author	Saravia, L.A. Momo, F. Boffi Lissin, L.D.
author_facet	Saravia, L.A. Momo, F. Boffi Lissin, L.D.
author_sort	Saravia, L.A.
title	Modelling periphyton dynamics in running water
title_short	Modelling periphyton dynamics in running water
title_full	Modelling periphyton dynamics in running water
title_fullStr	Modelling periphyton dynamics in running water
title_full_unstemmed	Modelling periphyton dynamics in running water
title_sort	modelling periphyton dynamics in running water
url	http://hdl.handle.net/20.500.12110/paper_03043800_v114_n1_p35_Saravia
work_keys_str_mv	AT saraviala modellingperiphytondynamicsinrunningwater AT momof modellingperiphytondynamicsinrunningwater AT boffilissinld modellingperiphytondynamicsinrunningwater
_version_	1807323533402963968

Modelling periphyton dynamics in running water

Ejemplares similares