Comparison of Metabolic Rates of Young of the Year Beluga (<i>Huso huso</i>), Sterlet (<i>Acipenser ruthenus</i>) and Bester Hybrid Reared in a Recirculating Aquaculture System
In the present study, oxygen consumption of two sturgeon species, beluga (<i>Huso huso</i>), sterlet (<i>Acipenser ruthenus</i>), and their hybrid reared in a recirculating aquaculture system were compared over body intervals from 54–107 g to determine the interspecific varia...
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/2410-3888/6/4/46 |
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| author | Mirela Crețu Raluca-Cristina Guriencu Lorena Dediu Maria-Desimira Stroe |
| author_facet | Mirela Crețu Raluca-Cristina Guriencu Lorena Dediu Maria-Desimira Stroe |
| author_sort | Mirela Crețu |
| collection | DOAJ |
| description | In the present study, oxygen consumption of two sturgeon species, beluga (<i>Huso huso</i>), sterlet (<i>Acipenser ruthenus</i>), and their hybrid reared in a recirculating aquaculture system were compared over body intervals from 54–107 g to determine the interspecific variation of metabolic rate. Metabolic rates were measured using the intermittent-flow respirometry technique. Standard oxygen consumption rates (SMR, mg O<sub>2</sub> h<sup>−1</sup>) of sterlet were 30% higher compared with beluga and 22% higher compared with bester hybrid. The routine metabolic rate (RMR, mg O<sub>2</sub> h<sup>−1</sup>) averaged 1.58 ± 0.13 times the SMR for <i>A. ruthenus</i>, 1.59 ± 0.3 for <i>H. huso</i>, and 1.42 ± 0.15 for the hybrid bester. However, the study revealed no significant differences (<i>p</i> > 0.05) between mean values of SMR and RMR for beluga and bester hybrid. The scaling coefficient reflected a closed isometry for the hybrid (b = 0.97), while for the purebred species the coefficient of 0.8 suggests a reduction in oxygen consumption with increasing body mass. These findings may contribute to understanding the differences in growth performances and oxygen requirements of the studied species reared in intensive aquaculture system. |
| first_indexed | 2024-03-10T04:09:29Z |
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| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-10T04:09:29Z |
| publishDate | 2021-10-01 |
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| series | Fishes |
| spelling | doaj.art-b175c5796a8043b5b57deb214b1869522023-11-23T08:14:45ZengMDPI AGFishes2410-38882021-10-01644610.3390/fishes6040046Comparison of Metabolic Rates of Young of the Year Beluga (<i>Huso huso</i>), Sterlet (<i>Acipenser ruthenus</i>) and Bester Hybrid Reared in a Recirculating Aquaculture SystemMirela Crețu0Raluca-Cristina Guriencu1Lorena Dediu2Maria-Desimira Stroe3Faculty of Food Science and Engineering, “Dunărea de Jos” University of Galați, 800008 Galați, RomaniaFaculty of Food Science and Engineering, “Dunărea de Jos” University of Galați, 800008 Galați, RomaniaFaculty of Food Science and Engineering, “Dunărea de Jos” University of Galați, 800008 Galați, RomaniaResearch-Development Institute for Aquatic Ecology, Fisheries and Aquaculture, 800211 Galați, RomaniaIn the present study, oxygen consumption of two sturgeon species, beluga (<i>Huso huso</i>), sterlet (<i>Acipenser ruthenus</i>), and their hybrid reared in a recirculating aquaculture system were compared over body intervals from 54–107 g to determine the interspecific variation of metabolic rate. Metabolic rates were measured using the intermittent-flow respirometry technique. Standard oxygen consumption rates (SMR, mg O<sub>2</sub> h<sup>−1</sup>) of sterlet were 30% higher compared with beluga and 22% higher compared with bester hybrid. The routine metabolic rate (RMR, mg O<sub>2</sub> h<sup>−1</sup>) averaged 1.58 ± 0.13 times the SMR for <i>A. ruthenus</i>, 1.59 ± 0.3 for <i>H. huso</i>, and 1.42 ± 0.15 for the hybrid bester. However, the study revealed no significant differences (<i>p</i> > 0.05) between mean values of SMR and RMR for beluga and bester hybrid. The scaling coefficient reflected a closed isometry for the hybrid (b = 0.97), while for the purebred species the coefficient of 0.8 suggests a reduction in oxygen consumption with increasing body mass. These findings may contribute to understanding the differences in growth performances and oxygen requirements of the studied species reared in intensive aquaculture system.https://www.mdpi.com/2410-3888/6/4/46routine metabolic ratestandard metabolic rateintermittent flow respirometrysturgeons |
| spellingShingle | Mirela Crețu Raluca-Cristina Guriencu Lorena Dediu Maria-Desimira Stroe Comparison of Metabolic Rates of Young of the Year Beluga (<i>Huso huso</i>), Sterlet (<i>Acipenser ruthenus</i>) and Bester Hybrid Reared in a Recirculating Aquaculture System Fishes routine metabolic rate standard metabolic rate intermittent flow respirometry sturgeons |
| title | Comparison of Metabolic Rates of Young of the Year Beluga (<i>Huso huso</i>), Sterlet (<i>Acipenser ruthenus</i>) and Bester Hybrid Reared in a Recirculating Aquaculture System |
| title_full | Comparison of Metabolic Rates of Young of the Year Beluga (<i>Huso huso</i>), Sterlet (<i>Acipenser ruthenus</i>) and Bester Hybrid Reared in a Recirculating Aquaculture System |
| title_fullStr | Comparison of Metabolic Rates of Young of the Year Beluga (<i>Huso huso</i>), Sterlet (<i>Acipenser ruthenus</i>) and Bester Hybrid Reared in a Recirculating Aquaculture System |
| title_full_unstemmed | Comparison of Metabolic Rates of Young of the Year Beluga (<i>Huso huso</i>), Sterlet (<i>Acipenser ruthenus</i>) and Bester Hybrid Reared in a Recirculating Aquaculture System |
| title_short | Comparison of Metabolic Rates of Young of the Year Beluga (<i>Huso huso</i>), Sterlet (<i>Acipenser ruthenus</i>) and Bester Hybrid Reared in a Recirculating Aquaculture System |
| title_sort | comparison of metabolic rates of young of the year beluga i huso huso i sterlet i acipenser ruthenus i and bester hybrid reared in a recirculating aquaculture system |
| topic | routine metabolic rate standard metabolic rate intermittent flow respirometry sturgeons |
| url | https://www.mdpi.com/2410-3888/6/4/46 |
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