Seawater carbonate chemistry and fecundity in a serial broadcast spawning fish ...

• Main Authors: Concannon, Callie A, Cross, Emma L, Jones, Lucas F, Murray, Christopher S, Matassa, Catherine M, McBride, Richard S, Baumann, Hannes
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Animalia; Chordata; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Menidia menidia; Nekton; North Atlantic; Pelagos; Reproduction; FOS Medical biotechnology; Single species; Temperate; Temperature; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment; Date; Length, total; Treatment temperature; Treatment; pH; Partial pressure of carbon dioxide water at sea surface temperature wet air; Individual ID; Replicate; Wet mass; Sex; Female; Time point, descriptive; Time in days; Embryos; Eggs; Diameter; Age; Identification; Gonad, wet mass; Gonadosomatic index; Fecundity; Stage; Salinity; Temperature, water; Temperature, water, standard deviation; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Partial pressure of carbon dioxide, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.943465; https://doi.pangaea.de/10.1594/PANGAEA.943465

Experiments examining fish sensitivities to future oceanic CO2 levels have greatly expanded over past decades and identified many potentially affected traits. Curiously, data on reproductive trait responses to high CO2 are still scarce, despite their strong link to Darwinian fitness and thus to population vulnerability to ocean acidification. We conducted two rearing experiments on the first broadcast-spawning marine fish model (Atlantic silverside, Menidia menidia) to examine how long-term and novel whole life-cycle exposures to predicted future CO2 levels (∼2,000 µatm) affect laboratory spawning, temperature-specific reproductive investment, fecundity, and size distributions of maturing oocytes. At low temperatures (17°C), female body size and therefore potential fecundity (FPot, oocytes/female) slightly increased with CO2, while relative fecundity (FRel, oocytes/g female) remained unaffected. At high temperatures (24°C), high CO2 substantially reduced both FPot (−19%) and FRel (−28%) relative to control ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2022-04-24. ...