Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia
ABSTRACT. Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia. The zooplankton communities of two lacustrine ecosystems in southwestern Amazonia (Lago Amapá and Lago Pirapora) were studied based on samples collected over an 11-month period. The gene...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.634.9015 2023-05-15T18:49:42+02:00 Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia Federal Acre Centro Aquicultura Rodovia Carlos Tonanni The Pennsylvania State University CiteSeerX Archives http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.9015 http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/viewFile/2042/1515/ en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.9015 http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/viewFile/2042/1515/ Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/viewFile/2042/1515/ text ftciteseerx 2021-05-30T00:20:35Z ABSTRACT. Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia. The zooplankton communities of two lacustrine ecosystems in southwestern Amazonia (Lago Amapá and Lago Pirapora) were studied based on samples collected over an 11-month period. The general aim of the present work was to contribute to the knowledge of the zooplankton fauna in southwestern Amazonia, by studying the occurrence of certain species; and to improve the knowledge of the Rio Acre tributaries. The total number of taxa included 38 species of rotifers, 6 cladocerans and 7 copepods. Most of the species were from the rotifer family Brachionidae. Jaccard´s similarity index was similar for the two lakes at 0.6964 The constancy index defined the species Keratella cochlearis, Filinia cf. terminalis, Filinia opoliensis, Hexarthra intermedia braziliensis, Ceriodaphnia cornuta, Moina minuta, Diaphanosoma spinulosum, and immature forms (nauplii and copepodites) as the constant in these lakes. The presence of zooplankton with higher number of species occupying the middle depths, during morning and night periods. Key words: zooplankton, composition, Amazonia. Text Copepods Rotifer Unknown |
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ftciteseerx |
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English |
description |
ABSTRACT. Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia. The zooplankton communities of two lacustrine ecosystems in southwestern Amazonia (Lago Amapá and Lago Pirapora) were studied based on samples collected over an 11-month period. The general aim of the present work was to contribute to the knowledge of the zooplankton fauna in southwestern Amazonia, by studying the occurrence of certain species; and to improve the knowledge of the Rio Acre tributaries. The total number of taxa included 38 species of rotifers, 6 cladocerans and 7 copepods. Most of the species were from the rotifer family Brachionidae. Jaccard´s similarity index was similar for the two lakes at 0.6964 The constancy index defined the species Keratella cochlearis, Filinia cf. terminalis, Filinia opoliensis, Hexarthra intermedia braziliensis, Ceriodaphnia cornuta, Moina minuta, Diaphanosoma spinulosum, and immature forms (nauplii and copepodites) as the constant in these lakes. The presence of zooplankton with higher number of species occupying the middle depths, during morning and night periods. Key words: zooplankton, composition, Amazonia. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Federal Acre Centro Aquicultura Rodovia Carlos Tonanni |
spellingShingle |
Federal Acre Centro Aquicultura Rodovia Carlos Tonanni Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia |
author_facet |
Federal Acre Centro Aquicultura Rodovia Carlos Tonanni |
author_sort |
Federal Acre |
title |
Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia |
title_short |
Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia |
title_full |
Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia |
title_fullStr |
Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia |
title_full_unstemmed |
Comparative study of the zooplankton composition of two lacustrine ecosystems in Southwestern Amazonia |
title_sort |
comparative study of the zooplankton composition of two lacustrine ecosystems in southwestern amazonia |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.9015 http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/viewFile/2042/1515/ |
genre |
Copepods Rotifer |
genre_facet |
Copepods Rotifer |
op_source |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/viewFile/2042/1515/ |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.634.9015 http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/viewFile/2042/1515/ |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766243309416611840 |