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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2021
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| Online-Zugang: | https://doi.org/10.1594/PANGAEA.933100 |
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| _version_ | 1867168211446792192 |
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| author | Kwan, Garfield Tsz Shen, Sara G Drawbridge, Mark Tresguerres, Martin |
| author_facet | Kwan, Garfield Tsz Shen, Sara G Drawbridge, Mark Tresguerres, Martin |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean acidification (OA) has been proposed to increase the energetic demand for acid-base regulation at the expense of larval fish growth. Here, white seabass (Atractoscion nobilis) eggs and larvae were reared at control (542 +/- 28 μatm) and elevated pCO2 (1,831 +/- 105 μatm) until five days post-fertilization (dpf). Skin ionocytes were identified by immunodetection of the Na+/K+-ATPase (NKA) enzyme. Larvae exposed to elevated pCO2 possessed significantly higher skin ionocyte number and density compared to control larvae. However, when ionocyte size was accounted for, the relative ionocyte area (a proxy for total ionoregulatory capacity) was unchanged. Similarly, there were no differences in relative NKA abundance, resting O2 consumption rate, and total length between control and treatment larvae at 5 dpf, nor in the rate at which relative ionocyte area and total length changed between 2–5 dpf. Altogether, our results suggest that OA conditions projected for the next century do not significantly affect the ionoregulatory capacity or energy consumption of larval white seabass. Finally, a retroactive analysis of the water in the recirculating aquarium system that housed the broodstock revealed the parents had been exposed to average pCO2 of 1,200 μatm for at least 3.5 years prior to this experiment. Future studies should investigate whether larval white seabass are naturally resilient to OA, or if this resilience is the result of parental chronic acclimation to OA, and/or from natural selection during spawning and fertilization in elevated pCO2. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_933100 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and ion-transporting capacity and aerobic respiration of larval white seabass (Atractoscion nobilis) Kwan, Garfield Tsz Shen, Sara G Drawbridge, Mark Tresguerres, Martin Alkalinity, total; Animalia; Aragonite saturation state; Atractoscion nobilis; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chordata; Coast and continental shelf; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Growth rate, standard error; Ionocyte density; Ionocyte density, standard error; Ionocyte number; Ionocyte number, standard error; Ionocyte size; Ionocyte size, standard error; Laboratory experiment; Length, total; Length, total, standard error; Nekton; North Atlantic; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other studied parameter or process; Oxygen consumption, standard error; Oxygen consumption per individual; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; Pelagos; pH; pH, standard error; pH, total scale; Registration number of species; Relative ionocyte area; Relative ionocyte area, standard error; Relative ionocyte area per day; Relative ionocyte area per day, standard error; Relative Na+/K+-ATPase-rich abundance; Relative Na+/K+-ATPase-rich abundance, standard error; Respiration; Salinity; Single species; Species; Surface area; Surface area, standard error; Temperate; Temperature, water; Time in days; Treatment; Type; Uniform resource locator/link to reference; Vessel Ocean acidification (OA) has been proposed to increase the energetic demand for acid-base regulation at the expense of larval fish growth. Here, white seabass (Atractoscion nobilis) eggs and larvae were reared at control (542 +/- 28 μatm) and elevated pCO2 (1,831 +/- 105 μatm) until five days post-fertilization (dpf). Skin ionocytes were identified by immunodetection of the Na+/K+-ATPase (NKA) enzyme. Larvae exposed to elevated pCO2 possessed significantly higher skin ionocyte number and density compared to control larvae. However, when ionocyte size was accounted for, the relative ionocyte area (a proxy for total ionoregulatory capacity) was unchanged. Similarly, there were no differences in relative NKA abundance, resting O2 consumption rate, and total length between control and treatment larvae at 5 dpf, nor in the rate at which relative ionocyte area and total length changed between 2–5 dpf. Altogether, our results suggest that OA conditions projected for the next century do not significantly affect the ionoregulatory capacity or energy consumption of larval white seabass. Finally, a retroactive analysis of the water in the recirculating aquarium system that housed the broodstock revealed the parents had been exposed to average pCO2 of 1,200 μatm for at least 3.5 years prior to this experiment. Future studies should investigate whether larval white seabass are naturally resilient to OA, or if this resilience is the result of parental chronic acclimation to OA, and/or from natural selection during spawning and fertilization in elevated pCO2. |
| title | Seawater carbonate chemistry and ion-transporting capacity and aerobic respiration of larval white seabass (Atractoscion nobilis) |
| topic | Alkalinity, total; Animalia; Aragonite saturation state; Atractoscion nobilis; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chordata; Coast and continental shelf; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Growth rate, standard error; Ionocyte density; Ionocyte density, standard error; Ionocyte number; Ionocyte number, standard error; Ionocyte size; Ionocyte size, standard error; Laboratory experiment; Length, total; Length, total, standard error; Nekton; North Atlantic; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other studied parameter or process; Oxygen consumption, standard error; Oxygen consumption per individual; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; Pelagos; pH; pH, standard error; pH, total scale; Registration number of species; Relative ionocyte area; Relative ionocyte area, standard error; Relative ionocyte area per day; Relative ionocyte area per day, standard error; Relative Na+/K+-ATPase-rich abundance; Relative Na+/K+-ATPase-rich abundance, standard error; Respiration; Salinity; Single species; Species; Surface area; Surface area, standard error; Temperate; Temperature, water; Time in days; Treatment; Type; Uniform resource locator/link to reference; Vessel |
| url | https://doi.org/10.1594/PANGAEA.933100 |