Non-Pollen Palynomorphs from Bottom Surface Sediments of “Lagoa Comprida” Lake, “Restinga de Jurubatiba” National Park, RJ, Brazil

Non-pollen palynomorphs (NPP) are organic elements found in preparations for palynological analyses, excluding pollen grains. NPP are important paleoenvironmental e paleoecological indicators, complementing studies in Quaternary Palynology. The present work aims to provide reference material for th...

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Main Authors: Shana Yuri Misumi, Marcia Aguiar de Barros, Claudia Gutterres Vilela, Ortrud Monika Barth
Format: Article
Language:English
Published: Universidade Federal do Rio de Janeiro 2018-08-01
Series:Anuário do Instituto de Geociências
Subjects:
Online Access:http://www.anuario.igeo.ufrj.br/2018_2/2018_2_344_350.pdf
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author Shana Yuri Misumi
Marcia Aguiar de Barros
Claudia Gutterres Vilela
Ortrud Monika Barth
author_facet Shana Yuri Misumi
Marcia Aguiar de Barros
Claudia Gutterres Vilela
Ortrud Monika Barth
author_sort Shana Yuri Misumi
collection DOAJ
description Non-pollen palynomorphs (NPP) are organic elements found in preparations for palynological analyses, excluding pollen grains. NPP are important paleoenvironmental e paleoecological indicators, complementing studies in Quaternary Palynology. The present work aims to provide reference material for the identification of NPP occurring in “restinga” environments. Bottom surface sediments were collected at three points along a transect at “Lagoa Comprida” lake, in “Restinga de Jurubatiba” National Park (RJNP), Northern Rio de Janeiro State. For the physicochemical treatment HF, HCl, KOH, classical acetolysis and sonication were used in sequence, accordingly to the methodology proposed as standard for quaternary sediments. Seven NPP were identified (3 Algae, 1 Incertae sedis and 3 Ferns) and their morphological descriptions, ecological data and habitats in the RJNP are here presented. NPP, especially algae, provide local ecological information and, in the present work, indicate a shallow, fresh-water environment with humidity oscillations. The presence of fern spores confirms the influence of local humidity. These results integrate those obtained by pollen grains analysis and will help the interpretation and environmental reconstitution of “Lagoa Comprida” lake at “Restinga de Jurubatiba” National Park.
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spelling doaj.art-dad332e703c140c589f2d5e0db3d27002023-01-02T17:59:17ZengUniversidade Federal do Rio de JaneiroAnuário do Instituto de Geociências0101-97591982-39082018-08-01412344350http://dx.doi.org/10.11137/2018_2_344_350Non-Pollen Palynomorphs from Bottom Surface Sediments of “Lagoa Comprida” Lake, “Restinga de Jurubatiba” National Park, RJ, BrazilShana Yuri Misumi0Marcia Aguiar de Barros1Claudia Gutterres Vilela2Ortrud Monika Barth3Universidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroNon-pollen palynomorphs (NPP) are organic elements found in preparations for palynological analyses, excluding pollen grains. NPP are important paleoenvironmental e paleoecological indicators, complementing studies in Quaternary Palynology. The present work aims to provide reference material for the identification of NPP occurring in “restinga” environments. Bottom surface sediments were collected at three points along a transect at “Lagoa Comprida” lake, in “Restinga de Jurubatiba” National Park (RJNP), Northern Rio de Janeiro State. For the physicochemical treatment HF, HCl, KOH, classical acetolysis and sonication were used in sequence, accordingly to the methodology proposed as standard for quaternary sediments. Seven NPP were identified (3 Algae, 1 Incertae sedis and 3 Ferns) and their morphological descriptions, ecological data and habitats in the RJNP are here presented. NPP, especially algae, provide local ecological information and, in the present work, indicate a shallow, fresh-water environment with humidity oscillations. The presence of fern spores confirms the influence of local humidity. These results integrate those obtained by pollen grains analysis and will help the interpretation and environmental reconstitution of “Lagoa Comprida” lake at “Restinga de Jurubatiba” National Park.http://www.anuario.igeo.ufrj.br/2018_2/2018_2_344_350.pdfnon-pollen palynomorph“Lagoa Comprida” lake“Restinga de Jurubatiba” National Park
spellingShingle Shana Yuri Misumi
Marcia Aguiar de Barros
Claudia Gutterres Vilela
Ortrud Monika Barth
Non-Pollen Palynomorphs from Bottom Surface Sediments of “Lagoa Comprida” Lake, “Restinga de Jurubatiba” National Park, RJ, Brazil
Anuário do Instituto de Geociências
non-pollen palynomorph
“Lagoa Comprida” lake
“Restinga de Jurubatiba” National Park
title Non-Pollen Palynomorphs from Bottom Surface Sediments of “Lagoa Comprida” Lake, “Restinga de Jurubatiba” National Park, RJ, Brazil
title_full Non-Pollen Palynomorphs from Bottom Surface Sediments of “Lagoa Comprida” Lake, “Restinga de Jurubatiba” National Park, RJ, Brazil
title_fullStr Non-Pollen Palynomorphs from Bottom Surface Sediments of “Lagoa Comprida” Lake, “Restinga de Jurubatiba” National Park, RJ, Brazil
title_full_unstemmed Non-Pollen Palynomorphs from Bottom Surface Sediments of “Lagoa Comprida” Lake, “Restinga de Jurubatiba” National Park, RJ, Brazil
title_short Non-Pollen Palynomorphs from Bottom Surface Sediments of “Lagoa Comprida” Lake, “Restinga de Jurubatiba” National Park, RJ, Brazil
title_sort non pollen palynomorphs from bottom surface sediments of lagoa comprida lake restinga de jurubatiba national park rj brazil
topic non-pollen palynomorph
“Lagoa Comprida” lake
“Restinga de Jurubatiba” National Park
url http://www.anuario.igeo.ufrj.br/2018_2/2018_2_344_350.pdf
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