Effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flow
An investigation was carried out during the rainy period in six semi-intensive production fish ponds in which water flowed from one pond to another without undergoing any treatment. Eight sampling sites were assigned at pond outlets during the rainy period (December-February). Lowest and highest phy...
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
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| Series: | Brazilian Journal of Biology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842007000400008&lng=en&tlng=en |
| _version_ | 1819268453739003904 |
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| author | LH. Sipaúba-Tavares CST. Guariglia FMS. Braga |
| author_facet | LH. Sipaúba-Tavares CST. Guariglia FMS. Braga |
| author_sort | LH. Sipaúba-Tavares |
| collection | DOAJ |
| description | An investigation was carried out during the rainy period in six semi-intensive production fish ponds in which water flowed from one pond to another without undergoing any treatment. Eight sampling sites were assigned at pond outlets during the rainy period (December-February). Lowest and highest physical and chemical parameters of water occurred in pond P1 (a site near the springs) and in pond P4 (a critical site that received allochthonous material from the other ponds and also from frog culture ponds), respectively. Pond sequential layout caused concentration of nutrients, chlorophyll-a and conductivity. Seasonal rains increased the water flow in the ponds and, consequently, silted more particles and other dissolved material from one fish pond to another. Silting increased limnological variables from P3 to P6. Although results suggest that during the period under analysis, rainfall affected positively the ponds' water quality and since the analyzed systems have been aligned in a sequential layout with constant water flow from fish ponds and parallel tanks without any previous treatment, care has to be taken so that an increase in rain-induced water flow does not have a contrary effect in the fish ponds investigated. |
| first_indexed | 2024-12-23T21:33:18Z |
| format | Article |
| id | doaj.art-08a5b7cdc87545b990ce6aacc6442ac3 |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-12-23T21:33:18Z |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-08a5b7cdc87545b990ce6aacc6442ac32022-12-21T17:30:22ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-437567464364910.1590/S1519-69842007000400008S1519-69842007000400008Effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flowLH. Sipaúba-Tavares0CST. Guariglia1FMS. Braga2Universidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaAn investigation was carried out during the rainy period in six semi-intensive production fish ponds in which water flowed from one pond to another without undergoing any treatment. Eight sampling sites were assigned at pond outlets during the rainy period (December-February). Lowest and highest physical and chemical parameters of water occurred in pond P1 (a site near the springs) and in pond P4 (a critical site that received allochthonous material from the other ponds and also from frog culture ponds), respectively. Pond sequential layout caused concentration of nutrients, chlorophyll-a and conductivity. Seasonal rains increased the water flow in the ponds and, consequently, silted more particles and other dissolved material from one fish pond to another. Silting increased limnological variables from P3 to P6. Although results suggest that during the period under analysis, rainfall affected positively the ponds' water quality and since the analyzed systems have been aligned in a sequential layout with constant water flow from fish ponds and parallel tanks without any previous treatment, care has to be taken so that an increase in rain-induced water flow does not have a contrary effect in the fish ponds investigated.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842007000400008&lng=en&tlng=enwater exchangefishpondlimnologywater qualityrainfall |
| spellingShingle | LH. Sipaúba-Tavares CST. Guariglia FMS. Braga Effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flow Brazilian Journal of Biology water exchange fishpond limnology water quality rainfall |
| title | Effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flow |
| title_full | Effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flow |
| title_fullStr | Effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flow |
| title_full_unstemmed | Effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flow |
| title_short | Effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flow |
| title_sort | effects of rainfall on water quality in six sequentially disposed fishponds with continuous water flow |
| topic | water exchange fishpond limnology water quality rainfall |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842007000400008&lng=en&tlng=en |
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