Seawater carbonate chemistry and Gadus morhua length, weight and sperm biological processes, 2010 ...

• Main Authors: Frommel, Andrea Y, Stiebens, V, Clemmesen, Catriona, Havenhand, Jonathan N
• Format: Dataset
• Language: English
• Published: PANGAEA 2010
• Subjects: Animalia; Baltic Sea; Bottles or small containers/Aquaria <20 L; Chordata; Coast and continental shelf; Gadus morhua; Growth/Morphology; Laboratory experiment; Nekton; Pelagos; Reproduction; FOS Medical biotechnology; Single species; Temperate; Identification; Experimental treatment; Salinity; Temperature, water; Alkalinity, total; Carbon, inorganic, dissolved; Partial pressure of carbon dioxide water at sea surface temperature wet air; pH; Gadus morhua, standard length; Gadus morhua, mass; Gadus morhua, sperm, swimming speed; Gadus morhua, sperm, motile; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Aragonite saturation state; Calcite saturation state; Measured; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; Biological Impacts of Ocean Acidification BIOACID; European network of excellence for Ocean Ecosystems Analysis EUR-OCEANS; European Project on Ocean Acidification EPOCA; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.758632; https://doi.pangaea.de/10.1594/PANGAEA.758632

Ocean acidification, as a consequence of increasing marine pCO2, may have severe effects on the physiology of marine organisms. However, experimental studies remain scarce, in particular concerning fish. While adults will most likely remain relatively unaffected by changes in seawater pH, early life-history stages are potentially more sensitive - particularly the critical stage of fertilization, in which sperm motility plays a central role. In this study, the effects of ocean acidification (decrease of pHT to 7.55) on sperm motility of Baltic cod, Gadus morhua, were assessed. We found no significant effect of decreased pH on sperm speed, rate of change of direction or percent motility for the population of cod analyzed. We predict that future ocean acidification will probably not pose a problem for sperm behavior, and hence fertilization success, of Baltic cod. ... : 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). ...