Seawater carbonate chemistry and sperm swimming speed of the polychaete Galeolaria caespitosa in lab experiment, supplement to: Schlegel, Peter; Havenhand, Jonathan N; Obadia, Nicolas; Williamson, Jane E (2014): Sperm swimming in the polychaete Galeolaria caespitosa shows substantial inter-individual variability in response to future ocean acidification. Marine Pollution Bulletin, 78(1-2), 213-217

• Main Authors: Schlegel, Peter, Havenhand, Jonathan N, Obadia, Nicolas, Williamson, Jane E
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2014
• Subjects: Animalia; Annelida; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Galeolaria caespitosa; Laboratory experiment; Reproduction; FOS Medical biotechnology; Single species; South Pacific; Temperate; Species; Treatment; Sample code/label; Sperm motility; Response ratio, logarithm; Motile sperm, speed; pH; Salinity; Temperature, water; Alkalinity, total; Carbonate system computation flag; Carbon dioxide; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Experiment; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Pacific; Williamson; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.823080; https://doi.pangaea.de/10.1594/PANGAEA.823080

The rapidity of ocean acidification intensifies selection pressure for resilient phenotypes, particularly during sensitive early life stages. The scope for selection is greater in species with greater within-species variation in responses to changing environments, thus enhancing the potential for adaptation. We investigated among-male variation in sperm swimming responses (percent motility and swimming speeds) of the serpulid polychaete Galeolaria caespitosa to near- (delta pH 0.3) and far-future ocean acidification (delta pH 0.5). Responses of sperm swimming to acidification varied significantly among males and were overall negative. Robust sperm swimming behavior under near-future ocean acidification in some males may ameliorate climate change impacts, if traits associated with robustness are heritable, and thereby enhance the potential for adaptation to far-future conditions. Reduced sperm swimming in the majority of male G. caespitosa may decrease their fertilization success in a high CO2 future ocean. Resultant changes in offspring production could affect recruitment success and population fitness downstream. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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 2013-11-19.