Seawater carbonate chemistry and sea urchin reproductive performance ...

• Main Authors: Smith, Kathryn E, Byrne, Maria, Deaker, Dione, Hird, Cameron M, Nielson, Clara, Wilson-McNeal, Alice, Lewis, Ceri N
• Format: Dataset
• Language: English
• Published: PANGAEA 2019
• Subjects: Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Echinodermata; Heliocidaris erythrogramma; Laboratory experiment; Lytechinus pictus; North Pacific; Reproduction; FOS Medical biotechnology; Single species; South Pacific; Temperate; Event label; Type; Species; Registration number of species; Uniform resource locator/link to reference; Treatment; Curvilinear velocity; Curvilinear velocity, standard deviation; Straight line velocity; Straight line velocity, standard error; Average path velocity; Average path velocity, standard deviation; Linearity index; Linearity, standard deviation; Wobble; Wobble, standard deviation; Straightness; Straightness, standard deviation; Sperm motility; Sperm motility, standard deviation; Fertilization success rate; Fertilization success rate, standard deviation; Temperature, water; Temperature, water, standard error; Salinity; Salinity, standard error; pH; pH, standard error; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Alkalinity, total; Alkalinity, total, standard error; 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; Bicarbonate ion; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.913488; https://doi.pangaea.de/10.1594/PANGAEA.913488

Ocean acidification (OA) is predicted to be a major driver of ocean biodiversity change. At projected rates of change, sensitive marine taxa may not have time to adapt. Their persistence may depend on pre-existing inter-individual variability. We investigated individual male reproductive performance under present-day and OA conditions using two representative broadcast spawners, the sea urchins Lytechinus pictus and Heliocidaris erythrogramma. Under the non-competitive individual ejaculate scenario, we examined sperm functional parameters (e.g. swimming speed, motility) and their relationship with fertilization success under current and near-future OA conditions. Significant inter-individual differences in almost every parameter measured were identified. Importantly, we observed strong inverse relationships between individual fertilization success rate under current conditions and change in fertilization success under OA. Individuals with a high fertilization success under current conditions had reduced ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) 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 2020-03-06. ...