Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon

Secondary production, density and biomass fluctuations, and some reproductive aspects of the rotifer Brachionus plicatilis were studied weekly for two years in a Brazilian coastal lagoon. Food (and secondarily temperature) seemed to be the main factor involved in the summer increments. In the first...

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Autores principales:	Maioli Castilho, María Stela, Arcifa, Marlene Sofía
Formato:	Online
Idioma:	eng
Publicado:	Universidad de Costa Rica 2000
Acceso en línea:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/18902

id	RBT18902
record_format	ojs
spelling	RBT189022022-06-13T19:50:54Z Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon Maioli Castilho, María Stela Arcifa, Marlene Sofía coastal lagoon zooplankton brachionus plicatilis secondary production mictic phase south america Secondary production, density and biomass fluctuations, and some reproductive aspects of the rotifer Brachionus plicatilis were studied weekly for two years in a Brazilian coastal lagoon. Food (and secondarily temperature) seemed to be the main factor involved in the summer increments. In the first summer, a mass mortality of fish caused changes in the phytoplankton, which switched from the dominance of Cyanophyceae to Chlorophyceae and other groups. For two months, production, density and biomass were relatively high until the recovery of the Cyanophyceae dominance. In the second summer, peaks of shorter duration and higher values of production, in comparison to the first one, were found. The contribution of resting eggs hatching, in the first summer, and the increment in parthenogenetic reproduction, in the second summer, would account for the population increases observed. Males and mictic females occurred when densities were high. Secondary production, density and biomass fluctuations, and some reproductive aspects of the rotifer Brachionus plicatilis were studied weekly for two years in a Brazilian coastal lagoon. Food (and secondarily temperature) seemed to be the main factor involved in the summer increments. In the first summer, a mass mortality of fish caused changes in the phytoplankton, which switched from the dominance of Cyanophyceae to Chlorophyceae and other groups. For two months, production, density and biomass were relatively high until the recovery of the Cyanophyceae dominance. In the second summer, peaks of shorter duration and higher values of production, in comparison to the first one, were found. The contribution of resting eggs hatching, in the first summer, and the increment in parthenogenetic reproduction, in the second summer, would account for the population increases observed. Males and mictic females occurred when densities were high. Universidad de Costa Rica 2000-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/18902 10.15517/rbt.v48i4.18902 Revista de Biología Tropical; Vol. 48 No. 4 (2000): Volume 48 – Regular number 4 – December 2000; 859–865 Revista de Biología Tropical; Vol. 48 Núm. 4 (2000): Volumen 48 – Numero regular 4 – Diciembre 2000; 859–865 Revista Biología Tropical; Vol. 48 N.º 4 (2000): Volume 48 – Regular number 4 – December 2000; 859–865 2215-2075 0034-7744 10.15517/rbt.v48i4 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/18902/19012 Copyright (c) 2000 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution	Universidad de Costa Rica
collection	Revista de Biología Tropical
language	eng
format	Online
author	Maioli Castilho, María Stela Arcifa, Marlene Sofía
spellingShingle	Maioli Castilho, María Stela Arcifa, Marlene Sofía Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon
author_facet	Maioli Castilho, María Stela Arcifa, Marlene Sofía
author_sort	Maioli Castilho, María Stela
description	Secondary production, density and biomass fluctuations, and some reproductive aspects of the rotifer Brachionus plicatilis were studied weekly for two years in a Brazilian coastal lagoon. Food (and secondarily temperature) seemed to be the main factor involved in the summer increments. In the first summer, a mass mortality of fish caused changes in the phytoplankton, which switched from the dominance of Cyanophyceae to Chlorophyceae and other groups. For two months, production, density and biomass were relatively high until the recovery of the Cyanophyceae dominance. In the second summer, peaks of shorter duration and higher values of production, in comparison to the first one, were found. The contribution of resting eggs hatching, in the first summer, and the increment in parthenogenetic reproduction, in the second summer, would account for the population increases observed. Males and mictic females occurred when densities were high.
title	Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon
title_short	Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon
title_full	Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon
title_fullStr	Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon
title_full_unstemmed	Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon
title_sort	production of the rotifer brachionus plicatilis (ploimida: brachionidae) in a brazilian coastal lagoon
title_alt	Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon
publisher	Universidad de Costa Rica
publishDate	2000
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/18902
work_keys_str_mv	AT maiolicastilhomariastela productionoftherotiferbrachionusplicatilisploimidabrachionidaeinabraziliancoastallagoon AT arcifamarlenesofia productionoftherotiferbrachionusplicatilisploimidabrachionidaeinabraziliancoastallagoon
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Production of the rotifer Brachionus plicatilis (Ploimida: Brachionidae) in a Brazilian coastal lagoon

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