Correlation between Metabolic Rate and Salinity Tolerance and Metabolic Response to Salinity in Grass Carp (<i>Ctenopharyngodon idella</i>)
The metabolic rate could be one of the factors affecting the salinity tolerance capacity of fish. Experiment I tested whether metabolic rates correlate with the upper salinity tolerance limit among individual grass carp by daily increasing salinity (1 g kg<sup>−1</sup> day<sup>−1&l...
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MDPI AG
2021-12-01
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| Online Access: | https://www.mdpi.com/2076-2615/11/12/3445 |
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| author | Pathe Karim Djiba Jianghui Zhang Yuan Xu Pan Zhang Jing Zhou Yan Zhang Yiping Luo |
| author_facet | Pathe Karim Djiba Jianghui Zhang Yuan Xu Pan Zhang Jing Zhou Yan Zhang Yiping Luo |
| author_sort | Pathe Karim Djiba |
| collection | DOAJ |
| description | The metabolic rate could be one of the factors affecting the salinity tolerance capacity of fish. Experiment I tested whether metabolic rates correlate with the upper salinity tolerance limit among individual grass carp by daily increasing salinity (1 g kg<sup>−1</sup> day<sup>−1</sup>). The feeding dropped sharply as the salinity reached 10 g kg<sup>−1</sup> and ceased when salinities exceeded 11 g kg<sup>−1</sup>. The ventilation frequency decreased weakly as salinity increased from 0 to 12 g kg<sup>−1</sup> and then increased rapidly as salinity reached 14 g kg<sup>−1</sup>. The fish survived at salinities lower than 14 g kg<sup>−1</sup>, and all fish died when salinity reached 17 g kg<sup>−1</sup>. The upper salinity tolerance limit was not correlated with metabolic rates. Therefore, a lower metabolic rate may not necessarily allow for better salinity tolerance capacity. Experiment II tested how different salinities (0, 0.375, 0.75, 1.5, 3, and 6 g kg<sup>−1</sup> for 2 weeks) affect the metabolic parameters of grass carp. The changes in the resting metabolic rate with increasing salinity could be explained by the relative changes in interlamellar cell mass and protruding lamellae. The maximum metabolic rate remained constant, suggesting that the salinity-induced changes in the gill surface had a minor effect on oxygen uptake capacity. |
| first_indexed | 2024-03-10T04:39:31Z |
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| id | doaj.art-5dbb38cc22324b62bfe7c09cdfb56620 |
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| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T04:39:31Z |
| publishDate | 2021-12-01 |
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| spelling | doaj.art-5dbb38cc22324b62bfe7c09cdfb566202023-11-23T03:27:04ZengMDPI AGAnimals2076-26152021-12-011112344510.3390/ani11123445Correlation between Metabolic Rate and Salinity Tolerance and Metabolic Response to Salinity in Grass Carp (<i>Ctenopharyngodon idella</i>)Pathe Karim Djiba0Jianghui Zhang1Yuan Xu2Pan Zhang3Jing Zhou4Yan Zhang5Yiping Luo6Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, ChinaClinical School, Chongqing Medical and Pharmaceutical College, Chongqing 401331, ChinaClinical School, Chongqing Medical and Pharmaceutical College, Chongqing 401331, ChinaKey Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing 400715, ChinaThe metabolic rate could be one of the factors affecting the salinity tolerance capacity of fish. Experiment I tested whether metabolic rates correlate with the upper salinity tolerance limit among individual grass carp by daily increasing salinity (1 g kg<sup>−1</sup> day<sup>−1</sup>). The feeding dropped sharply as the salinity reached 10 g kg<sup>−1</sup> and ceased when salinities exceeded 11 g kg<sup>−1</sup>. The ventilation frequency decreased weakly as salinity increased from 0 to 12 g kg<sup>−1</sup> and then increased rapidly as salinity reached 14 g kg<sup>−1</sup>. The fish survived at salinities lower than 14 g kg<sup>−1</sup>, and all fish died when salinity reached 17 g kg<sup>−1</sup>. The upper salinity tolerance limit was not correlated with metabolic rates. Therefore, a lower metabolic rate may not necessarily allow for better salinity tolerance capacity. Experiment II tested how different salinities (0, 0.375, 0.75, 1.5, 3, and 6 g kg<sup>−1</sup> for 2 weeks) affect the metabolic parameters of grass carp. The changes in the resting metabolic rate with increasing salinity could be explained by the relative changes in interlamellar cell mass and protruding lamellae. The maximum metabolic rate remained constant, suggesting that the salinity-induced changes in the gill surface had a minor effect on oxygen uptake capacity.https://www.mdpi.com/2076-2615/11/12/3445<i>Ctenopharyngodon idella</i>gillsmaximum metabolic rateresting metabolic ratesalinity tolerance |
| spellingShingle | Pathe Karim Djiba Jianghui Zhang Yuan Xu Pan Zhang Jing Zhou Yan Zhang Yiping Luo Correlation between Metabolic Rate and Salinity Tolerance and Metabolic Response to Salinity in Grass Carp (<i>Ctenopharyngodon idella</i>) Animals <i>Ctenopharyngodon idella</i> gills maximum metabolic rate resting metabolic rate salinity tolerance |
| title | Correlation between Metabolic Rate and Salinity Tolerance and Metabolic Response to Salinity in Grass Carp (<i>Ctenopharyngodon idella</i>) |
| title_full | Correlation between Metabolic Rate and Salinity Tolerance and Metabolic Response to Salinity in Grass Carp (<i>Ctenopharyngodon idella</i>) |
| title_fullStr | Correlation between Metabolic Rate and Salinity Tolerance and Metabolic Response to Salinity in Grass Carp (<i>Ctenopharyngodon idella</i>) |
| title_full_unstemmed | Correlation between Metabolic Rate and Salinity Tolerance and Metabolic Response to Salinity in Grass Carp (<i>Ctenopharyngodon idella</i>) |
| title_short | Correlation between Metabolic Rate and Salinity Tolerance and Metabolic Response to Salinity in Grass Carp (<i>Ctenopharyngodon idella</i>) |
| title_sort | correlation between metabolic rate and salinity tolerance and metabolic response to salinity in grass carp i ctenopharyngodon idella i |
| topic | <i>Ctenopharyngodon idella</i> gills maximum metabolic rate resting metabolic rate salinity tolerance |
| url | https://www.mdpi.com/2076-2615/11/12/3445 |
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