Occurrence and distribution of Scrippsiella cf. acuminata (Dinophyta, Thoracospharaceae) in a tropical estuarine gradient

Abstract Scrippsiella acuminata is a species complex that can cause anoxic conditions in the water column during blooms. This study aimed to analyze the occurrence and distribution of Scrippsiella cf. acuminata along the estuarine gradient of Paraguaçu River, from bimonthly sampling (March 2018 to March 2019) performed at 12 sampling points. Environmental variables were measured in situ, and water samples were collected for analysis of dissolved inorganic nutrients and phytoplankton cell density. At each point, samples were collected for analysis of species composition and preserved with formaldehyde at a final concentration of 4%. S. cf. acuminata occurred throughout the estuarine gradient (salinity 0.1–38.9), except in July, coinciding with the lowest concentrations of dissolved inorganic nutrients. Cell density varied between 20 cel L-1 (January 2019) and 1.8 × 106 cell L-1 (March 2018); in the latter, the species bloomed under conditions of low salinity (5.7) and the highest dissolved inorganic nutrient concentration recorded in the study. Cell density (1.7 × 105 L-1) increased in November 2018. Neither event had any detrimental effects on the estuarine system. This study allowed us to better understand the distribution patterns of S. cf. acuminata considering the environmental characteristics that can favor its development.

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Main Authors: Nunes,Caio Ceza da Silva, Silva,Daniela Mariano Lopes da, Affe,Helen Michelle de Jesus, Nunes,José Marcos de Castro
Format: Digital revista
Language:English
Published: Instituto de Pesquisas Jardim Botânico do Rio de Janeiro 2022
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602022000100601
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spelling oai:scielo:S2175-786020220001006012022-07-08Occurrence and distribution of Scrippsiella cf. acuminata (Dinophyta, Thoracospharaceae) in a tropical estuarine gradientNunes,Caio Ceza da SilvaSilva,Daniela Mariano Lopes daAffe,Helen Michelle de JesusNunes,José Marcos de Castro algal bloom dinoflagellate potentially harmful species Abstract Scrippsiella acuminata is a species complex that can cause anoxic conditions in the water column during blooms. This study aimed to analyze the occurrence and distribution of Scrippsiella cf. acuminata along the estuarine gradient of Paraguaçu River, from bimonthly sampling (March 2018 to March 2019) performed at 12 sampling points. Environmental variables were measured in situ, and water samples were collected for analysis of dissolved inorganic nutrients and phytoplankton cell density. At each point, samples were collected for analysis of species composition and preserved with formaldehyde at a final concentration of 4%. S. cf. acuminata occurred throughout the estuarine gradient (salinity 0.1–38.9), except in July, coinciding with the lowest concentrations of dissolved inorganic nutrients. Cell density varied between 20 cel L-1 (January 2019) and 1.8 × 106 cell L-1 (March 2018); in the latter, the species bloomed under conditions of low salinity (5.7) and the highest dissolved inorganic nutrient concentration recorded in the study. Cell density (1.7 × 105 L-1) increased in November 2018. Neither event had any detrimental effects on the estuarine system. This study allowed us to better understand the distribution patterns of S. cf. acuminata considering the environmental characteristics that can favor its development.info:eu-repo/semantics/openAccessInstituto de Pesquisas Jardim Botânico do Rio de JaneiroRodriguésia v.73 20222022-01-01info:eu-repo/semantics/othertext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602022000100601en10.1590/2175-7860202273068
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country Brasil
countrycode BR
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libraryname SciELO
language English
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author Nunes,Caio Ceza da Silva
Silva,Daniela Mariano Lopes da
Affe,Helen Michelle de Jesus
Nunes,José Marcos de Castro
spellingShingle Nunes,Caio Ceza da Silva
Silva,Daniela Mariano Lopes da
Affe,Helen Michelle de Jesus
Nunes,José Marcos de Castro
Occurrence and distribution of Scrippsiella cf. acuminata (Dinophyta, Thoracospharaceae) in a tropical estuarine gradient
author_facet Nunes,Caio Ceza da Silva
Silva,Daniela Mariano Lopes da
Affe,Helen Michelle de Jesus
Nunes,José Marcos de Castro
author_sort Nunes,Caio Ceza da Silva
title Occurrence and distribution of Scrippsiella cf. acuminata (Dinophyta, Thoracospharaceae) in a tropical estuarine gradient
title_short Occurrence and distribution of Scrippsiella cf. acuminata (Dinophyta, Thoracospharaceae) in a tropical estuarine gradient
title_full Occurrence and distribution of Scrippsiella cf. acuminata (Dinophyta, Thoracospharaceae) in a tropical estuarine gradient
title_fullStr Occurrence and distribution of Scrippsiella cf. acuminata (Dinophyta, Thoracospharaceae) in a tropical estuarine gradient
title_full_unstemmed Occurrence and distribution of Scrippsiella cf. acuminata (Dinophyta, Thoracospharaceae) in a tropical estuarine gradient
title_sort occurrence and distribution of scrippsiella cf. acuminata (dinophyta, thoracospharaceae) in a tropical estuarine gradient
description Abstract Scrippsiella acuminata is a species complex that can cause anoxic conditions in the water column during blooms. This study aimed to analyze the occurrence and distribution of Scrippsiella cf. acuminata along the estuarine gradient of Paraguaçu River, from bimonthly sampling (March 2018 to March 2019) performed at 12 sampling points. Environmental variables were measured in situ, and water samples were collected for analysis of dissolved inorganic nutrients and phytoplankton cell density. At each point, samples were collected for analysis of species composition and preserved with formaldehyde at a final concentration of 4%. S. cf. acuminata occurred throughout the estuarine gradient (salinity 0.1–38.9), except in July, coinciding with the lowest concentrations of dissolved inorganic nutrients. Cell density varied between 20 cel L-1 (January 2019) and 1.8 × 106 cell L-1 (March 2018); in the latter, the species bloomed under conditions of low salinity (5.7) and the highest dissolved inorganic nutrient concentration recorded in the study. Cell density (1.7 × 105 L-1) increased in November 2018. Neither event had any detrimental effects on the estuarine system. This study allowed us to better understand the distribution patterns of S. cf. acuminata considering the environmental characteristics that can favor its development.
publisher Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
publishDate 2022
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602022000100601
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