Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae)

Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae)

Benthic microalgae have the natural capacity to adhere to a diversity of fixed submerged substrates to form biofilms, which have important roles not only in natural ecosystems, but also in aquaculture systems. An experimental investigation was performed to assess the biofilm-forming capacity of two...

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Autores principales: Gomez-Ramirez, Ana Lucia, Enriquez-Ocaña, Luis Fernando, Miranda-Baeza, Anselmo, Cordero-Ezquivel, Beatriz, Lopez-Elias, Jose Antonio, Martinez-Cordova, Luis R.
Formato: Online
Idioma:eng
Publicado: Universidad de Costa Rica 2019
Acceso en línea:https://revistas.ucr.ac.cr/index.php/rbt/article/view/35117
id RBT35117
record_format ojs
institution Universidad de Costa Rica
collection Revista de Biología Tropical
language eng
format Online
author Gomez-Ramirez, Ana Lucia
Enriquez-Ocaña, Luis Fernando
Miranda-Baeza, Anselmo
Cordero-Ezquivel, Beatriz
Lopez-Elias, Jose Antonio
Martinez-Cordova, Luis R.
spellingShingle Gomez-Ramirez, Ana Lucia
Enriquez-Ocaña, Luis Fernando
Miranda-Baeza, Anselmo
Cordero-Ezquivel, Beatriz
Lopez-Elias, Jose Antonio
Martinez-Cordova, Luis R.
Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae)
author_facet Gomez-Ramirez, Ana Lucia
Enriquez-Ocaña, Luis Fernando
Miranda-Baeza, Anselmo
Cordero-Ezquivel, Beatriz
Lopez-Elias, Jose Antonio
Martinez-Cordova, Luis R.
author_sort Gomez-Ramirez, Ana Lucia
description Benthic microalgae have the natural capacity to adhere to a diversity of fixed submerged substrates to form biofilms, which have important roles not only in natural ecosystems, but also in aquaculture systems. An experimental investigation was performed to assess the biofilm-forming capacity of two microalgae (Navicula incerta and Navicula sp.) on three different substrates (plastic net, fabric, and wood) under controlled temperature and light conditions. The substrates were arranged on curtains suspended from a wood stick, into plastic aquariums (45 L in capacity) filled with filtered marine water enriched with F/2 medium. The trial was carried out until the exponential growing phase of the microalgae was reached. After that, the incorporated biomass was gravimetrically calculated, and its biochemical composition was determined by standard methods. The greatest amount of incorporated dry matter was observed for Navicula sp. on fabric and the lowest was observed for wood. The highest number of cells associated with the biofilm was obtained for Navicula sp. on the plastic net (1.24 x 109 cells/m2), while the lowest was recorded for Navicula sp. on the wood (1.43 x 108 cells/m2). Significant differences in organic matter were found among the substrates, with the highest values for N. incerta on the fabric (3.22 g/m2) and the lowest for Navicula sp. on the wood (0.02 g/m2). The best biochemical profiles among the formed biofilms were observed for N. incerta on the plastic net and Navicula sp. on the fabric. The plastic net was considered the best substrate because of the stability of the biofilm and the easiness of harvesting the biomass.
title Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae)
title_short Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae)
title_full Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae)
title_fullStr Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae)
title_full_unstemmed Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae)
title_sort capacidad de formación de biopelículas de dos microalgas bentónicas, navicula incerta y navicula sp., en tres sustratos (naviculales: naviculaceae)
title_alt Biofilm-forming capacity of two benthic microalgae, Navicula incerta and Navicula sp., on three substrates (Naviculales: Naviculaceae)
publisher Universidad de Costa Rica
publishDate 2019
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/35117
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spelling RBT351172022-06-13T14:22:19Z Biofilm-forming capacity of two benthic microalgae, Navicula incerta and Navicula sp., on three substrates (Naviculales: Naviculaceae) Capacidad de formación de biopelículas de dos microalgas bentónicas, Navicula incerta y Navicula sp., en tres sustratos (Naviculales: Naviculaceae) Gomez-Ramirez, Ana Lucia Enriquez-Ocaña, Luis Fernando Miranda-Baeza, Anselmo Cordero-Ezquivel, Beatriz Lopez-Elias, Jose Antonio Martinez-Cordova, Luis R. benthic microalgae biofilm-forming capacity biomass production substrates Bacillariophyceae diatomea Navicula microalgas bentónicas formación de biopelículas producción de biomasa sustratos Bacillariophyceae diatomea Navicula Benthic microalgae have the natural capacity to adhere to a diversity of fixed submerged substrates to form biofilms, which have important roles not only in natural ecosystems, but also in aquaculture systems. An experimental investigation was performed to assess the biofilm-forming capacity of two microalgae (Navicula incerta and Navicula sp.) on three different substrates (plastic net, fabric, and wood) under controlled temperature and light conditions. The substrates were arranged on curtains suspended from a wood stick, into plastic aquariums (45 L in capacity) filled with filtered marine water enriched with F/2 medium. The trial was carried out until the exponential growing phase of the microalgae was reached. After that, the incorporated biomass was gravimetrically calculated, and its biochemical composition was determined by standard methods. The greatest amount of incorporated dry matter was observed for Navicula sp. on fabric and the lowest was observed for wood. The highest number of cells associated with the biofilm was obtained for Navicula sp. on the plastic net (1.24 x 109 cells/m2), while the lowest was recorded for Navicula sp. on the wood (1.43 x 108 cells/m2). Significant differences in organic matter were found among the substrates, with the highest values for N. incerta on the fabric (3.22 g/m2) and the lowest for Navicula sp. on the wood (0.02 g/m2). The best biochemical profiles among the formed biofilms were observed for N. incerta on the plastic net and Navicula sp. on the fabric. The plastic net was considered the best substrate because of the stability of the biofilm and the easiness of harvesting the biomass. Benthic microalgae have the natural capacity to adhere to a diversity of fixed submerged substrates to form biofilms, which have important roles not only in natural ecosystems, but also in aquaculture systems. An experimental investigation was performed to assess the biofilm-forming capacity of two microalgae (Navicula incerta and Navicula sp.) on three different substrates (plastic net, fabric, and wood) under controlled temperature and light conditions. The substrates were arranged on curtains suspended from a wood stick, into plastic aquariums (45 L in capacity) filled with filtered marine water enriched with F/2 medium. The trial was carried out until the exponential growing phase of the microalgae was reached. After that, the incorporated biomass was gravimetrically calculated, and its biochemical composition was determined by standard methods. The greatest amount of incorporated dry matter was observed for Navicula sp. on fabric and the lowest was observed for wood. The highest number of cells associated with the biofilm was obtained for Navicula sp. on the plastic net (1.24 x 109 cells/m2), while the lowest was recorded for Navicula sp. on the wood (1.43 x 108 cells/m2). Significant differences in organic matter were found among the substrates, with the highest values for N. incerta on the fabric (3.22 g/m2) and the lowest for Navicula sp. on the wood (0.02 g/m2). The best biochemical profiles among the formed biofilms were observed for N. incerta on the plastic net and Navicula sp. on the fabric. The plastic net was considered the best substrate because of the stability of the biofilm and the easiness of harvesting the biomass. Universidad de Costa Rica 2019-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf text/html https://revistas.ucr.ac.cr/index.php/rbt/article/view/35117 10.15517/rbt.v67i3.35117 Revista de Biología Tropical; Vol. 67 No. 3 (2019): Volume 67 – Regular number 3 – June 2019; 599–607 Revista de Biología Tropical; Vol. 67 Núm. 3 (2019): Volumen 67 – Número regular 3 – Junio 2019; 599–607 Revista Biología Tropical; Vol. 67 N.º 3 (2019): Volume 67 – Regular number 3 – June 2019; 599–607 2215-2075 0034-7744 10.15517/rbt.v67i3 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/35117/38378 https://revistas.ucr.ac.cr/index.php/rbt/article/view/35117/38379 Copyright (c) 2019 Luis R. Martinez-Cordova, Ana Lucia Gomez-Ramirez, Luis Fernando Enriquez-Ocaña, Anselmo Miranda-Baeza, Beatriz Cordero-Ezquivel, Jose Antonio Lopez-Elias http://creativecommons.org/licenses/by/4.0

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