Effects of an oil spill and discharge of domestic sewage on the insect fauna of Cururu stream, Manaus, AM, Brazil
Assemblages of aquatic and edaphic insects in three streams in Central Amazonia were used to evaluate the impact on one of the streams (Cururu) caused by an oil spill that occurred in August 1999. The Cururu stream had already been impacted by domestic sewage. These three streams were evaluated duri...
| Autor principal: | Couceiro, Sheyla R.M. |
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| Outros Autores: | Forsberg, Bruce Rider, Hamada, Neusa, Ferreira-Keppler, Ruth Leila Menezes |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Revista Brasileira de Biologia
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/15143 |
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oai:repositorio:1-15143 |
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oai:repositorio:1-15143 Effects of an oil spill and discharge of domestic sewage on the insect fauna of Cururu stream, Manaus, AM, Brazil Couceiro, Sheyla R.M. Forsberg, Bruce Rider Hamada, Neusa Ferreira-Keppler, Ruth Leila Menezes Nitrogen Oxygen Petroleum Phosphorus Animals Brasil Chemistry Classification Drug Effect Environmental Monitoring Eutrophication Insect Methodology Population Density River Season Sewage Water Pollution Animal Brasil Environmental Monitoring Eutrophication Insects Nitrogen Oxygen Petroleum Phosphorus Population Density Rivers Seasons Sewage Water Pollution, Chemical Hexapoda Insecta Assemblages of aquatic and edaphic insects in three streams in Central Amazonia were used to evaluate the impact on one of the streams (Cururu) caused by an oil spill that occurred in August 1999. The Cururu stream had already been impacted by domestic sewage. These three streams were evaluated during four different periods of the regional hydrological cycle (falling-, low-, rising- and high-water), from September 2000 to May 2001. An Eckman dredge, an aquatic entomological net and a manual auger were used to collect insects, which were used to estimate the taxonomic richness (at the family level) and insect density in each stream. Anoxic and eutrophic conditions were determined in each stream based on the mean concentration of dissolved oxygen, total nitrogen and phosphorus. Richness and abundance of insect fauna were higher in the Cristalino stream (not impacted) than in the Bom Jardim stream (impacted by domestic sewage) and in the Cururu stream, with the exception of samples collected along the stream banks (littoral fauna). The mean dissolved oxygen was lower in the Cururu stream than in the other two, while the mean concentrations of total nitrogen and phosphorus were higher. These elements showed intermediate values in the Bom Jardim stream, while the opposite pattern was observed in the Cristalino stream, with higher concentrations of dissolved oxygen and lower concentrations of total nitrogen and phosphorus. The concentrations of these variables reflect the modifications resulting from anthropogenic eutrophication caused by the discharge of domestic sewage into Bom Jardim and Cururu and by the oil spill in Cururu, which negatively affected the richness and abundance of insects in these streams. 2020-05-07T14:07:19Z 2020-05-07T14:07:19Z 2006 Artigo https://repositorio.inpa.gov.br/handle/1/15143 10.1590/S1519-69842006000100006 en Volume 66, Número 1 A, Pags. 35-44 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Revista Brasileira de Biologia |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Nitrogen Oxygen Petroleum Phosphorus Animals Brasil Chemistry Classification Drug Effect Environmental Monitoring Eutrophication Insect Methodology Population Density River Season Sewage Water Pollution Animal Brasil Environmental Monitoring Eutrophication Insects Nitrogen Oxygen Petroleum Phosphorus Population Density Rivers Seasons Sewage Water Pollution, Chemical Hexapoda Insecta |
| spellingShingle |
Nitrogen Oxygen Petroleum Phosphorus Animals Brasil Chemistry Classification Drug Effect Environmental Monitoring Eutrophication Insect Methodology Population Density River Season Sewage Water Pollution Animal Brasil Environmental Monitoring Eutrophication Insects Nitrogen Oxygen Petroleum Phosphorus Population Density Rivers Seasons Sewage Water Pollution, Chemical Hexapoda Insecta Couceiro, Sheyla R.M. Effects of an oil spill and discharge of domestic sewage on the insect fauna of Cururu stream, Manaus, AM, Brazil |
| topic_facet |
Nitrogen Oxygen Petroleum Phosphorus Animals Brasil Chemistry Classification Drug Effect Environmental Monitoring Eutrophication Insect Methodology Population Density River Season Sewage Water Pollution Animal Brasil Environmental Monitoring Eutrophication Insects Nitrogen Oxygen Petroleum Phosphorus Population Density Rivers Seasons Sewage Water Pollution, Chemical Hexapoda Insecta |
| description |
Assemblages of aquatic and edaphic insects in three streams in Central Amazonia were used to evaluate the impact on one of the streams (Cururu) caused by an oil spill that occurred in August 1999. The Cururu stream had already been impacted by domestic sewage. These three streams were evaluated during four different periods of the regional hydrological cycle (falling-, low-, rising- and high-water), from September 2000 to May 2001. An Eckman dredge, an aquatic entomological net and a manual auger were used to collect insects, which were used to estimate the taxonomic richness (at the family level) and insect density in each stream. Anoxic and eutrophic conditions were determined in each stream based on the mean concentration of dissolved oxygen, total nitrogen and phosphorus. Richness and abundance of insect fauna were higher in the Cristalino stream (not impacted) than in the Bom Jardim stream (impacted by domestic sewage) and in the Cururu stream, with the exception of samples collected along the stream banks (littoral fauna). The mean dissolved oxygen was lower in the Cururu stream than in the other two, while the mean concentrations of total nitrogen and phosphorus were higher. These elements showed intermediate values in the Bom Jardim stream, while the opposite pattern was observed in the Cristalino stream, with higher concentrations of dissolved oxygen and lower concentrations of total nitrogen and phosphorus. The concentrations of these variables reflect the modifications resulting from anthropogenic eutrophication caused by the discharge of domestic sewage into Bom Jardim and Cururu and by the oil spill in Cururu, which negatively affected the richness and abundance of insects in these streams. |
| format |
Artigo |
| author |
Couceiro, Sheyla R.M. |
| author2 |
Forsberg, Bruce Rider Hamada, Neusa Ferreira-Keppler, Ruth Leila Menezes |
| author2Str |
Forsberg, Bruce Rider Hamada, Neusa Ferreira-Keppler, Ruth Leila Menezes |
| title |
Effects of an oil spill and discharge of domestic sewage on the insect fauna of Cururu stream, Manaus, AM, Brazil |
| title_short |
Effects of an oil spill and discharge of domestic sewage on the insect fauna of Cururu stream, Manaus, AM, Brazil |
| title_full |
Effects of an oil spill and discharge of domestic sewage on the insect fauna of Cururu stream, Manaus, AM, Brazil |
| title_fullStr |
Effects of an oil spill and discharge of domestic sewage on the insect fauna of Cururu stream, Manaus, AM, Brazil |
| title_full_unstemmed |
Effects of an oil spill and discharge of domestic sewage on the insect fauna of Cururu stream, Manaus, AM, Brazil |
| title_sort |
effects of an oil spill and discharge of domestic sewage on the insect fauna of cururu stream, manaus, am, brazil |
| publisher |
Revista Brasileira de Biologia |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/15143 |
| _version_ |
1787145066014310400 |
| score |
11.653393 |