Seawater carbonate chemistry, sample density and Strongylocentrotus purpuratus size, filtering and respiration rate during experiments, 2011 ...

• Main Authors: Stumpp, Meike, Wren, J, Melzner, Frank, Thorndyke, Mike, Dupont, Sam
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2011
• Subjects: Animalia; Behaviour; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Echinodermata; Growth/Morphology; Laboratory experiment; Mortality/Survival; North Pacific; Pelagos; Respiration; Single species; Strongylocentrotus purpuratus; Temperate; Zooplankton; 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.774592; https://doi.pangaea.de/10.1594/PANGAEA.774592

Anthropogenic CO2 emissions are acidifying the world's oceans. A growing body of evidence is showing that ocean acidification impacts growth and developmental rates of marine invertebrates. Here we test the impact of elevated seawater pCO2 (129 Pa, 1271 µatm) on early development, larval metabolic and feeding rates in a marine model organism, the sea urchin Strongylocentrotus purpuratus. Growth and development was assessed by measuring total body length, body rod length, postoral rod length and posterolateral rod length. Comparing these parameters between treatments suggests that larvae suffer from a developmental delay (by ca. 8%) rather than from the previously postulated reductions in size at comparable developmental stages. Further, we found maximum increases in respiration rates of + 100 % under elevated pCO2, while body length corrected feeding rates did not differ between larvae from both treatments. Calculating scope for growth illustrates that larvae raised under high pCO2 spent an average of 39 to ... : Supplement to: Stumpp, Meike; Wren, J; Melzner, Frank; Thorndyke, Mike; Dupont, Sam (2011): CO2 induced seawater acidification impacts sea urchin larval development I: elevated metabolic rates decrease scope for growth and induce developmental delay. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 160(3), 331-340 ...