Nitrogen budget and fluxes in Colossoma macropomum ponds
This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the se...
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| Autor*in: |
Jiménez-Montealegre, Ricardo [verfasserIn] Avnimelech, Yoram [verfasserIn] Verreth, Johan A J [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Science Ltd ; 2005 |
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| Schlagwörter: |
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| Umfang: |
Online-Ressource |
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| Reproduktion: |
2004 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: Aquaculture research - Oxford : Wiley-Blackwell, 1995, 36(2005), 1, Seite 0 |
| Übergeordnetes Werk: |
volume:36 ; year:2005 ; number:1 ; pages:0 |
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| DOI / URN: |
10.1111/j.1365-2109.2004.01174.x |
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| 520 | |a This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. | ||
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10.1111/j.1365-2109.2004.01174.x doi (DE-627)NLEJ242179770 DE-627 ger DE-627 rakwb Jiménez-Montealegre, Ricardo verfasserin aut Nitrogen budget and fluxes in Colossoma macropomum ponds Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| nitrogen budget Avnimelech, Yoram verfasserin aut Verreth, Johan A J verfasserin aut Verdegem, Marc C J oth In Aquaculture research Oxford : Wiley-Blackwell, 1995 36(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243925824 (DE-600)2019895-4 1365-2109 nnns volume:36 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2109.2004.01174.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 2005 1 0 |
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10.1111/j.1365-2109.2004.01174.x doi (DE-627)NLEJ242179770 DE-627 ger DE-627 rakwb Jiménez-Montealegre, Ricardo verfasserin aut Nitrogen budget and fluxes in Colossoma macropomum ponds Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| nitrogen budget Avnimelech, Yoram verfasserin aut Verreth, Johan A J verfasserin aut Verdegem, Marc C J oth In Aquaculture research Oxford : Wiley-Blackwell, 1995 36(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243925824 (DE-600)2019895-4 1365-2109 nnns volume:36 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2109.2004.01174.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 2005 1 0 |
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10.1111/j.1365-2109.2004.01174.x doi (DE-627)NLEJ242179770 DE-627 ger DE-627 rakwb Jiménez-Montealegre, Ricardo verfasserin aut Nitrogen budget and fluxes in Colossoma macropomum ponds Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| nitrogen budget Avnimelech, Yoram verfasserin aut Verreth, Johan A J verfasserin aut Verdegem, Marc C J oth In Aquaculture research Oxford : Wiley-Blackwell, 1995 36(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243925824 (DE-600)2019895-4 1365-2109 nnns volume:36 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2109.2004.01174.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 2005 1 0 |
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10.1111/j.1365-2109.2004.01174.x doi (DE-627)NLEJ242179770 DE-627 ger DE-627 rakwb Jiménez-Montealegre, Ricardo verfasserin aut Nitrogen budget and fluxes in Colossoma macropomum ponds Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| nitrogen budget Avnimelech, Yoram verfasserin aut Verreth, Johan A J verfasserin aut Verdegem, Marc C J oth In Aquaculture research Oxford : Wiley-Blackwell, 1995 36(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243925824 (DE-600)2019895-4 1365-2109 nnns volume:36 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2109.2004.01174.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 2005 1 0 |
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10.1111/j.1365-2109.2004.01174.x doi (DE-627)NLEJ242179770 DE-627 ger DE-627 rakwb Jiménez-Montealegre, Ricardo verfasserin aut Nitrogen budget and fluxes in Colossoma macropomum ponds Oxford, UK Blackwell Science Ltd 2005 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| nitrogen budget Avnimelech, Yoram verfasserin aut Verreth, Johan A J verfasserin aut Verdegem, Marc C J oth In Aquaculture research Oxford : Wiley-Blackwell, 1995 36(2005), 1, Seite 0 Online-Ressource (DE-627)NLEJ243925824 (DE-600)2019895-4 1365-2109 nnns volume:36 year:2005 number:1 pages:0 http://dx.doi.org/10.1111/j.1365-2109.2004.01174.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 2005 1 0 |
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Nitrogen budget and fluxes in Colossoma macropomum ponds |
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This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. |
| abstractGer |
This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. |
| abstract_unstemmed |
This study quantified the accumulation of nitrogen (N) in the water column, sediments, fish and seepage water during a production cycle of Colossoma macropomum. By combining estimates of the deposition rates of uneaten feed, faeces and dead phytoplankton with measurements of N accumulation in the sediment, the rate of decomposition of organic matter in the sediment was estimated. The first-order rate constant for organic matter decomposition was 0.237±0.019 day−1. Total N recovery during the first weeks of the experiment was about 65%. Later, the N recovery was close to 100%. The cumulative recovery at the end of the experiment was almost 100%, meaning that the N budget in the system studied can be fully explained without consideration of N volatilization, due to either denitrification or ammonia volatilization. In the beginning of the growth cycle, the major flux of N was sedimentation. Intensive microbial degradation process occurred about 3–4 weeks later, leading to a release of inorganic N and an approach towards a steady state as to the accumulation of organic N. Feed was irregularly applied during the experiment but fish growth was constant, showing that the fish utilized detrital or planktonic feed during periods of low feeding. Nitrogen accumulated in the pond during periods of excessive feeding and was utilized by the fish during periods of low feeding. This cycling should be further studied and may be an important pond management technique. |
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Nitrogen budget and fluxes in Colossoma macropomum ponds |
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Avnimelech, Yoram Verreth, Johan A J Verdegem, Marc C J |
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10.1111/j.1365-2109.2004.01174.x |
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