Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Botanica Brasilica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062021000900503 |
Resumo: | ABSTRACT Taxonomic investigations of phytoplankton community structure are very important for understanding the dynamics of these organisms in places like reefs, which present broad hydro-biological variation. This study aimed to determine and investigate phytoplankton community composition and biomass in natural pools of Atol das Rocas (3°51’ S; 33°49’ W), and to evaluate the possible influences of abiotic variables throughout different seasons. The oceanographic parameters used to assess the phytoplankton community and its biomass were chlorophyll a, salinity, water temperature, dissolved oxygen and dissolved inorganic nutrient content, namely ammonia, nitrate, nitrite, phosphate and silica. A total of 109 species were identified, distributed among four groups: Ochrophyta (52.3 %), Dinophyta (37.6 %), Cyanobacteria (7.33 %) and Haptophyta (2.75 %). Although none of the hydrological parameters were found to be statistically determinant, phytoplankton composition in all the studied pools was primarily associated with nutrient salts and there was a qualitative and quantitative increase in phytoplankton in the rainy season. This increase was due to the positive relationship between phytoplankton composition and nutrient salts when associated with local hydrodynamics, which provides more favorable conditions for the enrichment of diversity with emphasis on species that compose the benthic microflora. |
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Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environmentchlorophyll aenvironmental variablesmicrophytoplanktonnatural poolreefABSTRACT Taxonomic investigations of phytoplankton community structure are very important for understanding the dynamics of these organisms in places like reefs, which present broad hydro-biological variation. This study aimed to determine and investigate phytoplankton community composition and biomass in natural pools of Atol das Rocas (3°51’ S; 33°49’ W), and to evaluate the possible influences of abiotic variables throughout different seasons. The oceanographic parameters used to assess the phytoplankton community and its biomass were chlorophyll a, salinity, water temperature, dissolved oxygen and dissolved inorganic nutrient content, namely ammonia, nitrate, nitrite, phosphate and silica. A total of 109 species were identified, distributed among four groups: Ochrophyta (52.3 %), Dinophyta (37.6 %), Cyanobacteria (7.33 %) and Haptophyta (2.75 %). Although none of the hydrological parameters were found to be statistically determinant, phytoplankton composition in all the studied pools was primarily associated with nutrient salts and there was a qualitative and quantitative increase in phytoplankton in the rainy season. This increase was due to the positive relationship between phytoplankton composition and nutrient salts when associated with local hydrodynamics, which provides more favorable conditions for the enrichment of diversity with emphasis on species that compose the benthic microflora.Sociedade Botânica do Brasil2021-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062021000900503Acta Botanica Brasilica v.35 n.4 2021reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062020abb0269info:eu-repo/semantics/openAccessJales,Marina C.Feitosa,Fernando A. N.Koening,Maria LuiseMontes,Manuel De Jesus FloresPedrosa,Vanessa B.eng2022-02-01T00:00:00Zoai:scielo:S0102-33062021000900503Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2022-02-01T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false |
dc.title.none.fl_str_mv |
Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment |
title |
Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment |
spellingShingle |
Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment Jales,Marina C. chlorophyll a environmental variables microphytoplankton natural pool reef |
title_short |
Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment |
title_full |
Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment |
title_fullStr |
Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment |
title_full_unstemmed |
Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment |
title_sort |
Influence of abiotic factors on phytoplankton diversity and distribution in an atoll environment |
author |
Jales,Marina C. |
author_facet |
Jales,Marina C. Feitosa,Fernando A. N. Koening,Maria Luise Montes,Manuel De Jesus Flores Pedrosa,Vanessa B. |
author_role |
author |
author2 |
Feitosa,Fernando A. N. Koening,Maria Luise Montes,Manuel De Jesus Flores Pedrosa,Vanessa B. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Jales,Marina C. Feitosa,Fernando A. N. Koening,Maria Luise Montes,Manuel De Jesus Flores Pedrosa,Vanessa B. |
dc.subject.por.fl_str_mv |
chlorophyll a environmental variables microphytoplankton natural pool reef |
topic |
chlorophyll a environmental variables microphytoplankton natural pool reef |
description |
ABSTRACT Taxonomic investigations of phytoplankton community structure are very important for understanding the dynamics of these organisms in places like reefs, which present broad hydro-biological variation. This study aimed to determine and investigate phytoplankton community composition and biomass in natural pools of Atol das Rocas (3°51’ S; 33°49’ W), and to evaluate the possible influences of abiotic variables throughout different seasons. The oceanographic parameters used to assess the phytoplankton community and its biomass were chlorophyll a, salinity, water temperature, dissolved oxygen and dissolved inorganic nutrient content, namely ammonia, nitrate, nitrite, phosphate and silica. A total of 109 species were identified, distributed among four groups: Ochrophyta (52.3 %), Dinophyta (37.6 %), Cyanobacteria (7.33 %) and Haptophyta (2.75 %). Although none of the hydrological parameters were found to be statistically determinant, phytoplankton composition in all the studied pools was primarily associated with nutrient salts and there was a qualitative and quantitative increase in phytoplankton in the rainy season. This increase was due to the positive relationship between phytoplankton composition and nutrient salts when associated with local hydrodynamics, which provides more favorable conditions for the enrichment of diversity with emphasis on species that compose the benthic microflora. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062021000900503 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062021000900503 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0102-33062020abb0269 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
dc.source.none.fl_str_mv |
Acta Botanica Brasilica v.35 n.4 2021 reponame:Acta Botanica Brasilica instname:Sociedade Botânica do Brasil (SBB) instacron:SBB |
instname_str |
Sociedade Botânica do Brasil (SBB) |
instacron_str |
SBB |
institution |
SBB |
reponame_str |
Acta Botanica Brasilica |
collection |
Acta Botanica Brasilica |
repository.name.fl_str_mv |
Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB) |
repository.mail.fl_str_mv |
acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com |
_version_ |
1752126664191508480 |