Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems
This study was conducted over a period of 52 days to determine the effects of fish stocking density on the water quality, growth performance of tilapia and yield of butterhead lettuce cultivated in decoupled recirculation aquaponic systems (DRAPS). In this study, three respective tilapia stocking de...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Polish Society of Ecological Engineering
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/96985/1/ABSTRACT.pdf |
| _version_ | 1796983322287538176 |
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| author | Al Tawaha, Abdel Razzaq Megat Wahab, Puteri Edaroyati Jaafar, Hawa Tan, Ali Kee Zuan Hassan, Mohd Zafri |
| author_facet | Al Tawaha, Abdel Razzaq Megat Wahab, Puteri Edaroyati Jaafar, Hawa Tan, Ali Kee Zuan Hassan, Mohd Zafri |
| author_sort | Al Tawaha, Abdel Razzaq |
| collection | UPM |
| description | This study was conducted over a period of 52 days to determine the effects of fish stocking density on the water quality, growth performance of tilapia and yield of butterhead lettuce cultivated in decoupled recirculation aquaponic systems (DRAPS). In this study, three respective tilapia stocking densities (treatments) of 8 Kg m-3, 10 Kg m-3, and 12 Kg m-3 were used to evaluate the butterhead lettuce in the DRAPS, which consist of two independent loops. All treatments were done in triplicates. The results showed with increased stocking density, the electrical conductivity, total dissolved substances and salinity increased and dissolved oxygen decline. The results showed that the highest stocking density produced the highest nutrients accumulation of ammonia-nitrogen (NH3-N), ammonium (NH4), nitrite-nitrogen (NO2-N) and nitrate-nitrogen (NO3-N) and potassium (K) except for phosphorus (P). Nevertheless, based on the conversion of fish feed to NO3-N and P per kilogram of feeds, the lowest stocking density provided the highest concentration of NO3-N and P. It was documented that DRAPS relied solely on the fish waste produced an insufficient concentration of N, P, K and iron. The average survival rate of tilapia in all treatments was above 94% and was not a significant difference among the treatments. |
| first_indexed | 2024-03-06T11:04:55Z |
| format | Article |
| id | upm.eprints-96985 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T11:04:55Z |
| publishDate | 2021 |
| publisher | Polish Society of Ecological Engineering |
| record_format | dspace |
| spelling | upm.eprints-969852022-10-18T04:41:39Z http://psasir.upm.edu.my/id/eprint/96985/ Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems Al Tawaha, Abdel Razzaq Megat Wahab, Puteri Edaroyati Jaafar, Hawa Tan, Ali Kee Zuan Hassan, Mohd Zafri This study was conducted over a period of 52 days to determine the effects of fish stocking density on the water quality, growth performance of tilapia and yield of butterhead lettuce cultivated in decoupled recirculation aquaponic systems (DRAPS). In this study, three respective tilapia stocking densities (treatments) of 8 Kg m-3, 10 Kg m-3, and 12 Kg m-3 were used to evaluate the butterhead lettuce in the DRAPS, which consist of two independent loops. All treatments were done in triplicates. The results showed with increased stocking density, the electrical conductivity, total dissolved substances and salinity increased and dissolved oxygen decline. The results showed that the highest stocking density produced the highest nutrients accumulation of ammonia-nitrogen (NH3-N), ammonium (NH4), nitrite-nitrogen (NO2-N) and nitrate-nitrogen (NO3-N) and potassium (K) except for phosphorus (P). Nevertheless, based on the conversion of fish feed to NO3-N and P per kilogram of feeds, the lowest stocking density provided the highest concentration of NO3-N and P. It was documented that DRAPS relied solely on the fish waste produced an insufficient concentration of N, P, K and iron. The average survival rate of tilapia in all treatments was above 94% and was not a significant difference among the treatments. Polish Society of Ecological Engineering 2021 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/96985/1/ABSTRACT.pdf Al Tawaha, Abdel Razzaq and Megat Wahab, Puteri Edaroyati and Jaafar, Hawa and Tan, Ali Kee Zuan and Hassan, Mohd Zafri (2021) Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems. Journal of Ecological Engineering, 22 (1). pp. 8-19. ISSN 2081-139X; ESSN: 2299-8993 http://www.jeeng.net/Effects-of-Fish-Stocking-Density-on-Water-Quality-Growth-Performance-of-Tilapia-Oreochromis,128692,0,2.html 10.12911/22998993/128692 |
| spellingShingle | Al Tawaha, Abdel Razzaq Megat Wahab, Puteri Edaroyati Jaafar, Hawa Tan, Ali Kee Zuan Hassan, Mohd Zafri Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems |
| title | Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems |
| title_full | Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems |
| title_fullStr | Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems |
| title_full_unstemmed | Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems |
| title_short | Effects of fish stocking density on water quality, growth performance of Tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems |
| title_sort | effects of fish stocking density on water quality growth performance of tilapia and yield of butterhead lettuce grown in decoupled recirculation aquaponic systems |
| url | http://psasir.upm.edu.my/id/eprint/96985/1/ABSTRACT.pdf |
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