Osmoregulatory Plasticity of Juvenile Greater Amberjack (<i>Seriola dumerili</i>) to Environmental Salinity
Osmotic costs in teleosts are highly variable, reaching up to 50% of energy expenditure in some. In several species, environmental salinities close to the isosmotic point (~15 psu) minimize energy demand for osmoregulation while enhancing growth. The present study aimed to characterize the physiolog...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-09-01
|
| Series: | Animals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-2615/11/9/2607 |
| _version_ | 1797520565541535744 |
|---|---|
| author | Andre Barany Neda Gilannejad María Alameda-López Liliana Rodríguez-Velásquez Antonio Astola Gonzalo Martínez-Rodríguez Javier Roo Jose Luis Muñoz Juan Miguel Mancera |
| author_facet | Andre Barany Neda Gilannejad María Alameda-López Liliana Rodríguez-Velásquez Antonio Astola Gonzalo Martínez-Rodríguez Javier Roo Jose Luis Muñoz Juan Miguel Mancera |
| author_sort | Andre Barany |
| collection | DOAJ |
| description | Osmotic costs in teleosts are highly variable, reaching up to 50% of energy expenditure in some. In several species, environmental salinities close to the isosmotic point (~15 psu) minimize energy demand for osmoregulation while enhancing growth. The present study aimed to characterize the physiological status related to osmoregulation in early juveniles of the greater amberjack, <i>Seriola dumerili,</i> acclimated to three salinities (15, 22, and 36 psu). Our results indicate that plasma metabolic substrates were enhanced at the lower salinities, whereas hepatic carbohydrate and energetic lipid substrates decreased. Moreover, osmoregulatory parameters, such as osmolality, muscle water content, gill and intestine Na<sup>+</sup>-K<sup>+</sup>-ATPase activities, suggested a great osmoregulatory capacity in this species. Remarkably, electrophysiological parameters, such as short-circuit current (Isc) and transepithelial electric resistance (TER), were enhanced significantly at the posterior intestine. Concomitantly, Isc and TER anterior-to-posterior intestine differences were intensified with increasing environmental salinity. Furthermore, the expression of several adeno-hypophyseal genes was assessed. Expression of <i>prl</i> showed an inverse linear relationship with increasing environmental salinity, while <i>gh</i> mRNA enhanced significantly in the 22 psu-acclimated groups. Overall, these results could explain the better growth observed in <i>S. dumerili</i> juveniles kept at salinities close to isosmotic rather than in seawater. |
| first_indexed | 2024-03-10T07:58:33Z |
| format | Article |
| id | doaj.art-e11adb30c3694dd0a0e4431b38c42c5f |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T07:58:33Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-e11adb30c3694dd0a0e4431b38c42c5f2023-11-22T11:42:44ZengMDPI AGAnimals2076-26152021-09-01119260710.3390/ani11092607Osmoregulatory Plasticity of Juvenile Greater Amberjack (<i>Seriola dumerili</i>) to Environmental SalinityAndre Barany0Neda Gilannejad1María Alameda-López2Liliana Rodríguez-Velásquez3Antonio Astola4Gonzalo Martínez-Rodríguez5Javier Roo6Jose Luis Muñoz7Juan Miguel Mancera8Department of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEI·MAR), University of Cádiz, Puerto Real, E11510 Cádiz, SpainInstituto de Ciencias Marinas de Andalucía, Consejo Superior de Investigaciones Científicas (ICMAN-CSIC), Puerto Real, E11519 Cádiz, SpainDepartment of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEI·MAR), University of Cádiz, Puerto Real, E11510 Cádiz, SpainDepartment of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEI·MAR), University of Cádiz, Puerto Real, E11510 Cádiz, SpainDepartment of Biomedicine, Biotechnology, and Public Health, Faculty of Sciences, Campus de Excelencia Internacional del Mar (CEI-MAR), University of Cadiz, Puerto Real, E11510 Cádiz, SpainInstituto de Ciencias Marinas de Andalucía, Consejo Superior de Investigaciones Científicas (ICMAN-CSIC), Puerto Real, E11519 Cádiz, SpainGrupo de Investigación en Acuicultura (GIA), Instituto Universitario Ecoaqua, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n, E35214 Gran Canaria, SpainDepartment of Production, IFAPA Centro “El Toruño”, Junta de Andalucía, El Puerto de Santa María, E11500 Cádiz, SpainDepartment of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEI·MAR), University of Cádiz, Puerto Real, E11510 Cádiz, SpainOsmotic costs in teleosts are highly variable, reaching up to 50% of energy expenditure in some. In several species, environmental salinities close to the isosmotic point (~15 psu) minimize energy demand for osmoregulation while enhancing growth. The present study aimed to characterize the physiological status related to osmoregulation in early juveniles of the greater amberjack, <i>Seriola dumerili,</i> acclimated to three salinities (15, 22, and 36 psu). Our results indicate that plasma metabolic substrates were enhanced at the lower salinities, whereas hepatic carbohydrate and energetic lipid substrates decreased. Moreover, osmoregulatory parameters, such as osmolality, muscle water content, gill and intestine Na<sup>+</sup>-K<sup>+</sup>-ATPase activities, suggested a great osmoregulatory capacity in this species. Remarkably, electrophysiological parameters, such as short-circuit current (Isc) and transepithelial electric resistance (TER), were enhanced significantly at the posterior intestine. Concomitantly, Isc and TER anterior-to-posterior intestine differences were intensified with increasing environmental salinity. Furthermore, the expression of several adeno-hypophyseal genes was assessed. Expression of <i>prl</i> showed an inverse linear relationship with increasing environmental salinity, while <i>gh</i> mRNA enhanced significantly in the 22 psu-acclimated groups. Overall, these results could explain the better growth observed in <i>S. dumerili</i> juveniles kept at salinities close to isosmotic rather than in seawater.https://www.mdpi.com/2076-2615/11/9/2607intestineion transportmetabolismNa<sup>+</sup>/K<sup>+</sup>-ATPaseosmoregulationUssing chambers |
| spellingShingle | Andre Barany Neda Gilannejad María Alameda-López Liliana Rodríguez-Velásquez Antonio Astola Gonzalo Martínez-Rodríguez Javier Roo Jose Luis Muñoz Juan Miguel Mancera Osmoregulatory Plasticity of Juvenile Greater Amberjack (<i>Seriola dumerili</i>) to Environmental Salinity Animals intestine ion transport metabolism Na<sup>+</sup>/K<sup>+</sup>-ATPase osmoregulation Ussing chambers |
| title | Osmoregulatory Plasticity of Juvenile Greater Amberjack (<i>Seriola dumerili</i>) to Environmental Salinity |
| title_full | Osmoregulatory Plasticity of Juvenile Greater Amberjack (<i>Seriola dumerili</i>) to Environmental Salinity |
| title_fullStr | Osmoregulatory Plasticity of Juvenile Greater Amberjack (<i>Seriola dumerili</i>) to Environmental Salinity |
| title_full_unstemmed | Osmoregulatory Plasticity of Juvenile Greater Amberjack (<i>Seriola dumerili</i>) to Environmental Salinity |
| title_short | Osmoregulatory Plasticity of Juvenile Greater Amberjack (<i>Seriola dumerili</i>) to Environmental Salinity |
| title_sort | osmoregulatory plasticity of juvenile greater amberjack i seriola dumerili i to environmental salinity |
| topic | intestine ion transport metabolism Na<sup>+</sup>/K<sup>+</sup>-ATPase osmoregulation Ussing chambers |
| url | https://www.mdpi.com/2076-2615/11/9/2607 |
| work_keys_str_mv | AT andrebarany osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity AT nedagilannejad osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity AT mariaalamedalopez osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity AT lilianarodriguezvelasquez osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity AT antonioastola osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity AT gonzalomartinezrodriguez osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity AT javierroo osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity AT joseluismunoz osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity AT juanmiguelmancera osmoregulatoryplasticityofjuvenilegreateramberjackiserioladumeriliitoenvironmentalsalinity |