Seawater carbonate chemistry, mortality and hatching rate, size and mass of Clupea harengus during experiments, 2011, supplement to: Franke, Andrea; Clemmesen, Catriona (2011): Effect of ocean acidification on early life stages of Atlantic herring (Clupea harengus L.). Biogeosciences, 8(12), 3697-3707

• Main Authors: Franke, Andrea, Clemmesen, Catriona
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2011
• Subjects: Animalia; Baltic Sea; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Chordata; Clupea harengus; Coast and continental shelf; Growth/Morphology; Laboratory experiment; Nekton; Pelagos; Reproduction; FOS Medical biotechnology; Single species; Temperate; Experimental treatment; Salinity; Temperature, water; Temperature, standard deviation; Replicates; pH; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Carbon dioxide, partial pressure, standard deviation; Carbon dioxide; Carbon dioxide, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Clupea harengus, eggs, malformed; Mortality; Hatching rate; Clupea harengus, length; Clupea harengus, dry mass; Clupea harengus, yolk sac area; Clupea harengus, sagitta area; Clupea harengus, lupillus area; Ribonucleic acid/Deoxyribonucleic acid ratio; Carbonate system computation flag; Fugacity of carbon dioxide water at sea surface temperature wet air; Calcite saturation state; Stereomicroscopy Leica; Conductivity meter WTW, Weilheim, Gemany; Titration potentiometric; Calculated using CO2SYS; Measured; Microbalance Sartorius; 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.774430; https://doi.pangaea.de/10.1594/PANGAEA.774430

Due to atmospheric accumulation of anthropogenic CO2 the partial pressure of carbon dioxide (pCO2) in surface seawater increases and the pH decreases. This process known as ocean acidification might have severe effects on marine organisms and ecosystems. The present study addresses the effect of ocean acidification on early developmental stages, the most sensitive stages in life history, of the Atlantic herring (Clupea harengus L.). Eggs of the Atlantic herring were fertilized and incubated in artificially acidified seawater (pCO2 1260, 1859, 2626, 2903, 4635 µatm) and a control treatment (pCO2 480 µatm) until the main hatch of herring larvae occurred. The development of the embryos was monitored daily and newly hatched larvae were sampled to analyze their morphometrics, and their condition by measuring the RNA/DNA ratios. Elevated pCO2 neither affected the embryogenesis nor the hatch rate. Furthermore the results showed no linear relationship betweenpCO2 and total length, dry weight, yolk sac area and otolith area of the newly hatched larvae. For pCO2 and RNA/DNA ratio, however, a significant negative linear relationship was found. The RNA concentration at hatching was reduced at higher pCO2 levels, which could lead to a decreased protein biosynthesis. The results indicate that an increased pCO2 can affect the metabolism of herring embryos negatively. Accordingly, further somatic growth of the larvae could be reduced. This can have consequences for the larval fish, since smaller and slow growing individuals have a lower survival potential due to lower feeding success and increased predation mortality. The regulatory mechanisms necessary to compensate for effects of hypercapnia could therefore lead to lower larval survival. Since the recruitment of fish seems to be determined during the early life stages, future research on the factors influencing these stages are of great importance in fisheries science. : 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).