Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil)
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/83 |
Resumo: | In the Imboassica Lagoon (22o 24’S and 42o 42’W) (Macaé, RJ, Brazil), two species of macroalgae of the genus Chara (C. angolensis and C. fibrosa) registered in large areas were identified. The lagoon is subject to several relevant anthropic impacts, of which untreated sewage is one of the most important. Results of the biomass distribution as analyzed in different areas of the lagoon showed values ranging from 172 to 510 gDW.m–2 . As for the nutrient concentration, the results presented large fluctuations, with carbon values ranging from 325 to 392 mg.g–1 DW, those of nitrogen, from 14 to 27 mg.g–1 DW, and of phosphorus from 0.45 to 0.85 mg.g–1 DW. This led to large fluctuations of the C:N:P ratio (from 387:24:1 to 872:47:1). The minimum and maximum energetic values of the biomass were 9.54 e 12.34 kJ.g–1 DW. Smaller C:N:P ratios tended to occur in more eutrophic areas. The association between biomass and nu- trient concentration showed that the highest quantities in the beds are found in oligotrophic areas. The Spearman correlation between nutrient concentration in the water column and biomass was r s = 0.45 (p < 0.05) for nitrogen and r s = 0.50 (p < 0.01) for phosphorus (n = 30). The large total biomass asso- ciated with nutrient concentration and energy content indicates that Charophytes are an important bio- logical compartment in the structure and metabolism of the lagoon. |
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Palma-Silva, CleberAlbertoni, Edélti FariaEsteves, Francisco de Assis2010-10-02T17:26:59Z2010-10-02T17:26:59Z2004PALMA-SILVA, C. ; ALBERTONI, E. F. ; ESTEVES, F. A. . Charophytes as a reservoir of nutrients and energy in a tropical coastal lagoon suject to human impact (RJ, Brazil).. Brazilian Journal of Biology, São Carlos, v. 64, n. 3, p. 1-9, 2004.1519-69841678-4375http://repositorio.furg.br/handle/1/83In the Imboassica Lagoon (22o 24’S and 42o 42’W) (Macaé, RJ, Brazil), two species of macroalgae of the genus Chara (C. angolensis and C. fibrosa) registered in large areas were identified. The lagoon is subject to several relevant anthropic impacts, of which untreated sewage is one of the most important. Results of the biomass distribution as analyzed in different areas of the lagoon showed values ranging from 172 to 510 gDW.m–2 . As for the nutrient concentration, the results presented large fluctuations, with carbon values ranging from 325 to 392 mg.g–1 DW, those of nitrogen, from 14 to 27 mg.g–1 DW, and of phosphorus from 0.45 to 0.85 mg.g–1 DW. This led to large fluctuations of the C:N:P ratio (from 387:24:1 to 872:47:1). The minimum and maximum energetic values of the biomass were 9.54 e 12.34 kJ.g–1 DW. Smaller C:N:P ratios tended to occur in more eutrophic areas. The association between biomass and nu- trient concentration showed that the highest quantities in the beds are found in oligotrophic areas. The Spearman correlation between nutrient concentration in the water column and biomass was r s = 0.45 (p < 0.05) for nitrogen and r s = 0.50 (p < 0.01) for phosphorus (n = 30). The large total biomass asso- ciated with nutrient concentration and energy content indicates that Charophytes are an important bio- logical compartment in the structure and metabolism of the lagoon.engAquatic macrophyteBiomassNutrientsChemical compositionPollutionMacrófita aquáticaBiomassNutrientesComposição químicaPoluiçãoCharophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALCharophytes as a nutrient and energy.pdfCharophytes as a nutrient and energy.pdfapplication/pdf55497https://repositorio.furg.br/bitstream/1/83/1/Charophytes%20as%20a%20nutrient%20and%20energy.pdf04102513c3ce26e36640d1f65b0028e4MD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81724https://repositorio.furg.br/bitstream/1/83/2/license.txt5b92b9704b4f13242d70e45ddef35a68MD52open access1/832011-09-13 13:20:52.169open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2011-09-13T16:20:52Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil) |
title |
Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil) |
spellingShingle |
Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil) Palma-Silva, Cleber Aquatic macrophyte Biomass Nutrients Chemical composition Pollution Macrófita aquática Biomass Nutrientes Composição química Poluição |
title_short |
Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil) |
title_full |
Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil) |
title_fullStr |
Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil) |
title_full_unstemmed |
Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil) |
title_sort |
Charophytes as a nutrient and energy reservoir in a tropical coastal lagoon impacted by humans (RJ, Brazil) |
author |
Palma-Silva, Cleber |
author_facet |
Palma-Silva, Cleber Albertoni, Edélti Faria Esteves, Francisco de Assis |
author_role |
author |
author2 |
Albertoni, Edélti Faria Esteves, Francisco de Assis |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Palma-Silva, Cleber Albertoni, Edélti Faria Esteves, Francisco de Assis |
dc.subject.por.fl_str_mv |
Aquatic macrophyte Biomass Nutrients Chemical composition Pollution Macrófita aquática Biomass Nutrientes Composição química Poluição |
topic |
Aquatic macrophyte Biomass Nutrients Chemical composition Pollution Macrófita aquática Biomass Nutrientes Composição química Poluição |
description |
In the Imboassica Lagoon (22o 24’S and 42o 42’W) (Macaé, RJ, Brazil), two species of macroalgae of the genus Chara (C. angolensis and C. fibrosa) registered in large areas were identified. The lagoon is subject to several relevant anthropic impacts, of which untreated sewage is one of the most important. Results of the biomass distribution as analyzed in different areas of the lagoon showed values ranging from 172 to 510 gDW.m–2 . As for the nutrient concentration, the results presented large fluctuations, with carbon values ranging from 325 to 392 mg.g–1 DW, those of nitrogen, from 14 to 27 mg.g–1 DW, and of phosphorus from 0.45 to 0.85 mg.g–1 DW. This led to large fluctuations of the C:N:P ratio (from 387:24:1 to 872:47:1). The minimum and maximum energetic values of the biomass were 9.54 e 12.34 kJ.g–1 DW. Smaller C:N:P ratios tended to occur in more eutrophic areas. The association between biomass and nu- trient concentration showed that the highest quantities in the beds are found in oligotrophic areas. The Spearman correlation between nutrient concentration in the water column and biomass was r s = 0.45 (p < 0.05) for nitrogen and r s = 0.50 (p < 0.01) for phosphorus (n = 30). The large total biomass asso- ciated with nutrient concentration and energy content indicates that Charophytes are an important bio- logical compartment in the structure and metabolism of the lagoon. |
publishDate |
2004 |
dc.date.issued.fl_str_mv |
2004 |
dc.date.accessioned.fl_str_mv |
2010-10-02T17:26:59Z |
dc.date.available.fl_str_mv |
2010-10-02T17:26:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PALMA-SILVA, C. ; ALBERTONI, E. F. ; ESTEVES, F. A. . Charophytes as a reservoir of nutrients and energy in a tropical coastal lagoon suject to human impact (RJ, Brazil).. Brazilian Journal of Biology, São Carlos, v. 64, n. 3, p. 1-9, 2004. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/83 |
dc.identifier.issn.none.fl_str_mv |
1519-6984 1678-4375 |
identifier_str_mv |
PALMA-SILVA, C. ; ALBERTONI, E. F. ; ESTEVES, F. A. . Charophytes as a reservoir of nutrients and energy in a tropical coastal lagoon suject to human impact (RJ, Brazil).. Brazilian Journal of Biology, São Carlos, v. 64, n. 3, p. 1-9, 2004. 1519-6984 1678-4375 |
url |
http://repositorio.furg.br/handle/1/83 |
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eng |
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eng |
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