Limnological considerations about an Amazonian floodplain lake (Catalão lake - Amazonas State, Brazil)
The temporal and spatial variation of some limnologjcal variables in the limnetic zone of an Amazonian floodplain lake, Catalão Lake, was studied. The following parameters were measured weekly during the dry period of 2006 and the flood period of 2007: water temperature, euphoric zone, mixing zone,...
| Autor principal: | Almeida, Fabiane Ferreira de |
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| Outros Autores: | Melo, Sérgio |
| Grau: | Artigo |
| Idioma: | pt_BR |
| Publicado em: |
Acta Scientiarum - Biological Sciences
2020
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https://repositorio.inpa.gov.br/handle/1/16296 |
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oai:repositorio:1-16296 |
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oai:repositorio:1-16296 Limnological considerations about an Amazonian floodplain lake (Catalão lake - Amazonas State, Brazil) Considerações limnológicas sobre um lago da planície de inundação amazônica (lago Catalão - Estado do Amazonas, Brasil) Almeida, Fabiane Ferreira de Melo, Sérgio Dissolved Oxygen Nitrogen Phosphorus Brasil Controlled Study Electric Conductivity Environmental Monitoring Flooding Floodplain Lake Limnetic Zone Limnology Physical Chemistry Seasonal Variation Water Temperature The temporal and spatial variation of some limnologjcal variables in the limnetic zone of an Amazonian floodplain lake, Catalão Lake, was studied. The following parameters were measured weekly during the dry period of 2006 and the flood period of 2007: water temperature, euphoric zone, mixing zone, electrical conductivity, dissolved oxygen, water transparency and total phosphorus and nitrogen. Simple regressions were carried out to test the hypothesis of environmental homogeneity as a function of flooding. Also, diel temperature, dissolved oxygen and electric conductivity profiles were studied during the dry period and in the flood period. The results show the importance of the flood pulse in the variation of the physical and chemical variables in the lake. The PCA indicated that, during the dry period, the physical and chemical variables had a stronger spatial pattern of distribution, while during the flood period, the pattern was temporal. The regressions indicated the homogeneity of the environment as a function of flooding. The results of the diel cycles seem to indicate that Catalão lake has a polimictic and oligomictic behavior during the dry and flood periods, respectively. 2020-06-03T01:55:48Z 2020-06-03T01:55:48Z 2009 Artigo https://repositorio.inpa.gov.br/handle/1/16296 10.4025/actascibiolsci.v31i4.4641 pt_BR Volume 31, Número 4, Pags. 387-395 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Acta Scientiarum - Biological Sciences |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
pt_BR |
| topic |
Dissolved Oxygen Nitrogen Phosphorus Brasil Controlled Study Electric Conductivity Environmental Monitoring Flooding Floodplain Lake Limnetic Zone Limnology Physical Chemistry Seasonal Variation Water Temperature |
| spellingShingle |
Dissolved Oxygen Nitrogen Phosphorus Brasil Controlled Study Electric Conductivity Environmental Monitoring Flooding Floodplain Lake Limnetic Zone Limnology Physical Chemistry Seasonal Variation Water Temperature Almeida, Fabiane Ferreira de Limnological considerations about an Amazonian floodplain lake (Catalão lake - Amazonas State, Brazil) |
| topic_facet |
Dissolved Oxygen Nitrogen Phosphorus Brasil Controlled Study Electric Conductivity Environmental Monitoring Flooding Floodplain Lake Limnetic Zone Limnology Physical Chemistry Seasonal Variation Water Temperature |
| description |
The temporal and spatial variation of some limnologjcal variables in the limnetic zone of an Amazonian floodplain lake, Catalão Lake, was studied. The following parameters were measured weekly during the dry period of 2006 and the flood period of 2007: water temperature, euphoric zone, mixing zone, electrical conductivity, dissolved oxygen, water transparency and total phosphorus and nitrogen. Simple regressions were carried out to test the hypothesis of environmental homogeneity as a function of flooding. Also, diel temperature, dissolved oxygen and electric conductivity profiles were studied during the dry period and in the flood period. The results show the importance of the flood pulse in the variation of the physical and chemical variables in the lake. The PCA indicated that, during the dry period, the physical and chemical variables had a stronger spatial pattern of distribution, while during the flood period, the pattern was temporal. The regressions indicated the homogeneity of the environment as a function of flooding. The results of the diel cycles seem to indicate that Catalão lake has a polimictic and oligomictic behavior during the dry and flood periods, respectively. |
| format |
Artigo |
| author |
Almeida, Fabiane Ferreira de |
| author2 |
Melo, Sérgio |
| author2Str |
Melo, Sérgio |
| title |
Limnological considerations about an Amazonian floodplain lake (Catalão lake - Amazonas State, Brazil) |
| title_short |
Limnological considerations about an Amazonian floodplain lake (Catalão lake - Amazonas State, Brazil) |
| title_full |
Limnological considerations about an Amazonian floodplain lake (Catalão lake - Amazonas State, Brazil) |
| title_fullStr |
Limnological considerations about an Amazonian floodplain lake (Catalão lake - Amazonas State, Brazil) |
| title_full_unstemmed |
Limnological considerations about an Amazonian floodplain lake (Catalão lake - Amazonas State, Brazil) |
| title_sort |
limnological considerations about an amazonian floodplain lake (catalão lake - amazonas state, brazil) |
| publisher |
Acta Scientiarum - Biological Sciences |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16296 |
| _version_ |
1787141767429095424 |
| score |
11.755432 |