Seawater carbonate chemistry and metabolic rate and nitrogenous waste handling in the early life stages of yellowfin tuna (Thunnus albacares)
Fuente:
PANGAEA
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867168221237346304 |
|---|---|
| author | Heuer, Rachael M Wang, Yadong Pasparakis, Christina Zhang, Wenlong Scholey, Vernon Margulies, Daniel Grosell, Martin |
| author_facet | Heuer, Rachael M Wang, Yadong Pasparakis, Christina Zhang, Wenlong Scholey, Vernon Margulies, Daniel Grosell, Martin |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean acidification is predicted to have a wide range of impacts on fish, but there has been little focus on broad-ranging pelagic fish species. Early life stages of fish are thought to be particularly susceptible to CO2 exposure, since acid-base regulatory faculties may not be fully developed. We obtained yellowfin tuna (Thunnus albacares) from a captive spawning broodstock population and exposed them to control or 1900 μatm CO2 through the first three days of development as embryos transitioned into yolk sac larvae. Metabolic rate, yolk sac depletion, and oil globule depletion were measured to assess overall energy usage. To determine if CO2 altered protein catabolism, tissue nitrogen content and nitrogenous waste excretion were quantified. CO2 exposure did not significantly impact embryonic metabolic rate, yolk sac depletion, or oil globule depletion, however, there was a significant decrease in metabolic rate at the latest measured yolk sac larval stage (36 h post fertilization). CO2-exposure led to a significant increase in nitrogenous waste excretion in larvae, but there were no differences in nitrogen tissue accumulation. Nitrogenous waste accumulated in embryos as they developed but decreased after hatch, coinciding with a large increase in nitrogenous waste excretion and increased metabolic rate in newly hatched larvae. Our results provide insight into how yellowfin tuna are impacted by increases in CO2 in early development, but more research with higher levels of replication is needed to better understand long-term impacts and acid-base regulatory mechanisms in this important pelagic fish. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_957625 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and metabolic rate and nitrogenous waste handling in the early life stages of yellowfin tuna (Thunnus albacares) Heuer, Rachael M Wang, Yadong Pasparakis, Christina Zhang, Wenlong Scholey, Vernon Margulies, Daniel Grosell, Martin Alkalinity, total; Alkalinity, total, standard error; Ammonia excretion per individual; Ammonia per individual; Animalia; Aragonite saturation state; Bicarbonate ion; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chordata; Containers and aquaria (20-1000 L or < 1 m**2); Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Identification; Laboratory experiment; Laboratory strains; Nekton; Not applicable; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other metabolic rates; Oxygen, dissolved; Oxygen, dissolved, 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, NBS scale; pH, standard error; pH, total scale; Ratio; Replicate; Reproduction; Respiration; Salinity; Salinity, standard error; Single species; Size; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperature, water; Temperature, water, standard error; Thunnus albacares; Time in hours; Total nitrogen excretion rate per individual; Total nitrogen per individual; Treatment; Type of study; Urea excretion rate per individual; Urea per individual Ocean acidification is predicted to have a wide range of impacts on fish, but there has been little focus on broad-ranging pelagic fish species. Early life stages of fish are thought to be particularly susceptible to CO2 exposure, since acid-base regulatory faculties may not be fully developed. We obtained yellowfin tuna (Thunnus albacares) from a captive spawning broodstock population and exposed them to control or 1900 μatm CO2 through the first three days of development as embryos transitioned into yolk sac larvae. Metabolic rate, yolk sac depletion, and oil globule depletion were measured to assess overall energy usage. To determine if CO2 altered protein catabolism, tissue nitrogen content and nitrogenous waste excretion were quantified. CO2 exposure did not significantly impact embryonic metabolic rate, yolk sac depletion, or oil globule depletion, however, there was a significant decrease in metabolic rate at the latest measured yolk sac larval stage (36 h post fertilization). CO2-exposure led to a significant increase in nitrogenous waste excretion in larvae, but there were no differences in nitrogen tissue accumulation. Nitrogenous waste accumulated in embryos as they developed but decreased after hatch, coinciding with a large increase in nitrogenous waste excretion and increased metabolic rate in newly hatched larvae. Our results provide insight into how yellowfin tuna are impacted by increases in CO2 in early development, but more research with higher levels of replication is needed to better understand long-term impacts and acid-base regulatory mechanisms in this important pelagic fish. |
| title | Seawater carbonate chemistry and metabolic rate and nitrogenous waste handling in the early life stages of yellowfin tuna (Thunnus albacares) |
| topic | Alkalinity, total; Alkalinity, total, standard error; Ammonia excretion per individual; Ammonia per individual; Animalia; Aragonite saturation state; Bicarbonate ion; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chordata; Containers and aquaria (20-1000 L or < 1 m**2); Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Identification; Laboratory experiment; Laboratory strains; Nekton; Not applicable; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other metabolic rates; Oxygen, dissolved; Oxygen, dissolved, 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, NBS scale; pH, standard error; pH, total scale; Ratio; Replicate; Reproduction; Respiration; Salinity; Salinity, standard error; Single species; Size; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperature, water; Temperature, water, standard error; Thunnus albacares; Time in hours; Total nitrogen excretion rate per individual; Total nitrogen per individual; Treatment; Type of study; Urea excretion rate per individual; Urea per individual |
| url | https://doi.org/10.1594/PANGAEA.957625 |