Oxygen Consumption and Ammonia Excretion of <i>Marphysa sanguinea</i> (Polychaeta: Eunicidae) in Relation to Body Mass and Temperature
(1) Background: <i>Marphysa sanguinea</i> is a polychaete with high economic value and ecological importance. Information on metabolism is important to understand the physiological action of organisms. (2) Methods: The rates of oxygen consumption (<i>R</i>) and ammonia excret...
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/2410-3888/6/4/52 |
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| author | Chengjian Wang Na Kou Xiaowei Liu Dazuo Yang |
| author_facet | Chengjian Wang Na Kou Xiaowei Liu Dazuo Yang |
| author_sort | Chengjian Wang |
| collection | DOAJ |
| description | (1) Background: <i>Marphysa sanguinea</i> is a polychaete with high economic value and ecological importance. Information on metabolism is important to understand the physiological action of organisms. (2) Methods: The rates of oxygen consumption (<i>R</i>) and ammonia excretion (<i>U</i>) were measured using different temperatures (<i>T</i>) and body mass (<i>M</i>) levels. The activation energy (<i>E</i>) was calculated using the universal temperature dependence theory. (3) Results: Oxygen consumption presented a curve with an upward trend first, and then a downward trend, and ammonia excretion displayed a “U” curve. The effects of temperature and body size on oxygen consumption and ammonia excretion rates were extremely significant. Small individuals had higher metabolic rates than large polychaetes at the same temperature. The relationship between oxygen consumption, ammonia excretion, and M was expressed as <i>Y = a·M</i><em><sup>b</sup></em>, <i>b</i><em><sub>R</sub></em> = 0.56 ± 0.09, and <i>b</i><em><sub>U</sub></em> = 0.35 ± 0.30. The oxygen consumption activation energy was <i>E</i><em><sub>R</sub></em> = 0.68 eV, and the ammonia excretion activation energy was <i>E</i><em><sub>U</sub></em> = 0.53 eV. The O:N ratio at different temperatures and body sizes was in the range of 3.55–56.44. (4) Conclusions: The results not only provide basic data on the metabolism of <i>M. sanguinea</i> but also insights to understand the relationship between animal metabolism and ecological factors from different perspectives. |
| first_indexed | 2024-03-10T04:09:19Z |
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| language | English |
| last_indexed | 2024-03-10T04:09:19Z |
| publishDate | 2021-10-01 |
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| spelling | doaj.art-85d106581a134405ab81db419fa2655b2023-11-23T08:14:50ZengMDPI AGFishes2410-38882021-10-01645210.3390/fishes6040052Oxygen Consumption and Ammonia Excretion of <i>Marphysa sanguinea</i> (Polychaeta: Eunicidae) in Relation to Body Mass and TemperatureChengjian Wang0Na Kou1Xiaowei Liu2Dazuo Yang3Key Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, ChinaKey Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, ChinaKey Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, ChinaKey Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, China(1) Background: <i>Marphysa sanguinea</i> is a polychaete with high economic value and ecological importance. Information on metabolism is important to understand the physiological action of organisms. (2) Methods: The rates of oxygen consumption (<i>R</i>) and ammonia excretion (<i>U</i>) were measured using different temperatures (<i>T</i>) and body mass (<i>M</i>) levels. The activation energy (<i>E</i>) was calculated using the universal temperature dependence theory. (3) Results: Oxygen consumption presented a curve with an upward trend first, and then a downward trend, and ammonia excretion displayed a “U” curve. The effects of temperature and body size on oxygen consumption and ammonia excretion rates were extremely significant. Small individuals had higher metabolic rates than large polychaetes at the same temperature. The relationship between oxygen consumption, ammonia excretion, and M was expressed as <i>Y = a·M</i><em><sup>b</sup></em>, <i>b</i><em><sub>R</sub></em> = 0.56 ± 0.09, and <i>b</i><em><sub>U</sub></em> = 0.35 ± 0.30. The oxygen consumption activation energy was <i>E</i><em><sub>R</sub></em> = 0.68 eV, and the ammonia excretion activation energy was <i>E</i><em><sub>U</sub></em> = 0.53 eV. The O:N ratio at different temperatures and body sizes was in the range of 3.55–56.44. (4) Conclusions: The results not only provide basic data on the metabolism of <i>M. sanguinea</i> but also insights to understand the relationship between animal metabolism and ecological factors from different perspectives.https://www.mdpi.com/2410-3888/6/4/52<i>Marphysa sanguinea</i>oxygen consumption rateammonia excretion rateactivation energyO:N ratio |
| spellingShingle | Chengjian Wang Na Kou Xiaowei Liu Dazuo Yang Oxygen Consumption and Ammonia Excretion of <i>Marphysa sanguinea</i> (Polychaeta: Eunicidae) in Relation to Body Mass and Temperature Fishes <i>Marphysa sanguinea</i> oxygen consumption rate ammonia excretion rate activation energy O:N ratio |
| title | Oxygen Consumption and Ammonia Excretion of <i>Marphysa sanguinea</i> (Polychaeta: Eunicidae) in Relation to Body Mass and Temperature |
| title_full | Oxygen Consumption and Ammonia Excretion of <i>Marphysa sanguinea</i> (Polychaeta: Eunicidae) in Relation to Body Mass and Temperature |
| title_fullStr | Oxygen Consumption and Ammonia Excretion of <i>Marphysa sanguinea</i> (Polychaeta: Eunicidae) in Relation to Body Mass and Temperature |
| title_full_unstemmed | Oxygen Consumption and Ammonia Excretion of <i>Marphysa sanguinea</i> (Polychaeta: Eunicidae) in Relation to Body Mass and Temperature |
| title_short | Oxygen Consumption and Ammonia Excretion of <i>Marphysa sanguinea</i> (Polychaeta: Eunicidae) in Relation to Body Mass and Temperature |
| title_sort | oxygen consumption and ammonia excretion of i marphysa sanguinea i polychaeta eunicidae in relation to body mass and temperature |
| topic | <i>Marphysa sanguinea</i> oxygen consumption rate ammonia excretion rate activation energy O:N ratio |
| url | https://www.mdpi.com/2410-3888/6/4/52 |
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