Aquatic biota in the Peruvian Amazon: diversity and uses as environmental indicators in the lower Urubamba (Cusco - Ucayali)
In this paper we apply biological indices of environmental quality and conservation, based on biological monitoring conducted between 2003 and 2009 in five localities of the Bajo Urubamba River. Communities of plankton, benthos and fishes were studied. The diversity of plankton was 170 species, mainly based on Chlorophyta and Bacillariophyta. The benthos included 112 species, mainly larvae and adults of Arthropoda (Insecta). 176 fish species were recorded, represented by 26 families and six orders. The quality of the study area ranged from normal to very good, according to the index %ETP. The conservation index of aquatic environments (IBI) gave the higher values for Miari and Sepahua. The high diversity of the communities studied could be related to the heterogeneity of habitats and greater resources than are observed in the lower part of the study area.
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Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas
2010
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oai:ojs.csi.unmsm:article472020-05-21T23:05:23Z Aquatic biota in the Peruvian Amazon: diversity and uses as environmental indicators in the lower Urubamba (Cusco - Ucayali) Biota acuática en la Amazonía Peruana: diversidad y usos como indicadores ambientales en el Bajo Urubamba (Cusco - Ucayali) Ortega, Hernán Chocano, Luisa Palma, Carlos Samanez, Iris comunidades biológicas peces riqueza ambientes acuáticos conservación. biological communities richness fishes aquatic habitats conservation. In this paper we apply biological indices of environmental quality and conservation, based on biological monitoring conducted between 2003 and 2009 in five localities of the Bajo Urubamba River. Communities of plankton, benthos and fishes were studied. The diversity of plankton was 170 species, mainly based on Chlorophyta and Bacillariophyta. The benthos included 112 species, mainly larvae and adults of Arthropoda (Insecta). 176 fish species were recorded, represented by 26 families and six orders. The quality of the study area ranged from normal to very good, according to the index %ETP. The conservation index of aquatic environments (IBI) gave the higher values for Miari and Sepahua. The high diversity of the communities studied could be related to the heterogeneity of habitats and greater resources than are observed in the lower part of the study area. En el presente trabajo se aplican índices biológicos de calidad ambiental y conservación, basados en el monitoreo biológico realizado entre año 2003 y 2009, en cinco localidades del río Bajo Urubamba. Fueron estudiadas las comunidades del plancton, bentos y peces. La diversidad del plancton comprendió 170 especies, basadas principalmente en Chlorophyta y Bacillariophyta. El bentos incluyó 112 especies, principalmente larvas y adultos de Arthropoda (Insecta). La diversidad de peces, incluye 176 especies, representadas por 26 familias y seis órdenes. El Índice Ephemeroptera + Plecoptera + Trichoptera (%EPT), califico el área de estudio entre normal a muy buena calidad. El índice de Integridad Biológica (IBI) que determina el estado de conservación de los ambientes acuáticos, dio los mayores valores en Miaría y Sepahua. La elevada diversidad de las comunidades estudiados estaría relacionada a la heterogeneidad de hábitats y mayores recursos observados en la parte baja del área de estudio. Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas 2010-04-19 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article info:eu-repo/semantics/article application/pdf https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/47 10.15381/rpb.v17i1.47 Revista Peruana de Biología; Vol. 17 No. 1 (2010); 029- 035 Revista Peruana de Biología; Vol. 17 Núm. 1 (2010); 029- 035 1727-9933 1561-0837 spa https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/47/42 Derechos de autor 2010 Hernán Ortega, Luisa Chocano, Carlos Palma, Iris Samanez https://creativecommons.org/licenses/by-nc-sa/4.0 |
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author |
Ortega, Hernán Chocano, Luisa Palma, Carlos Samanez, Iris |
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Ortega, Hernán Chocano, Luisa Palma, Carlos Samanez, Iris Aquatic biota in the Peruvian Amazon: diversity and uses as environmental indicators in the lower Urubamba (Cusco - Ucayali) |
author_facet |
Ortega, Hernán Chocano, Luisa Palma, Carlos Samanez, Iris |
author_sort |
Ortega, Hernán |
title |
Aquatic biota in the Peruvian Amazon: diversity and uses as environmental indicators in the lower Urubamba (Cusco - Ucayali) |
title_short |
Aquatic biota in the Peruvian Amazon: diversity and uses as environmental indicators in the lower Urubamba (Cusco - Ucayali) |
title_full |
Aquatic biota in the Peruvian Amazon: diversity and uses as environmental indicators in the lower Urubamba (Cusco - Ucayali) |
title_fullStr |
Aquatic biota in the Peruvian Amazon: diversity and uses as environmental indicators in the lower Urubamba (Cusco - Ucayali) |
title_full_unstemmed |
Aquatic biota in the Peruvian Amazon: diversity and uses as environmental indicators in the lower Urubamba (Cusco - Ucayali) |
title_sort |
aquatic biota in the peruvian amazon: diversity and uses as environmental indicators in the lower urubamba (cusco - ucayali) |
description |
In this paper we apply biological indices of environmental quality and conservation, based on biological monitoring conducted between 2003 and 2009 in five localities of the Bajo Urubamba River. Communities of plankton, benthos and fishes were studied. The diversity of plankton was 170 species, mainly based on Chlorophyta and Bacillariophyta. The benthos included 112 species, mainly larvae and adults of Arthropoda (Insecta). 176 fish species were recorded, represented by 26 families and six orders. The quality of the study area ranged from normal to very good, according to the index %ETP. The conservation index of aquatic environments (IBI) gave the higher values for Miari and Sepahua. The high diversity of the communities studied could be related to the heterogeneity of habitats and greater resources than are observed in the lower part of the study area. |
publisher |
Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas |
publishDate |
2010 |
url |
https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/47 |
work_keys_str_mv |
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