Impact of ocean acidification and elevated temperatures on early juveniles of the polar shelled pteropod Limacina helicina: mortality, shell degradation, and shell growth

By S. Lischka, J. Büdenbender, Tim Boxhammer, U. Riebesell. 2010

276 citations recorded by the source corpus.

Abstract. Due to their aragonitic shell, thecosome pteropods may be particularly vulnerable to ocean acidification driven by anthropogenic CO2 emissions. This applies specifically to species inhabiting Arctic surface waters that are projected to become temporarily and locally undersaturated with respect to aragonite as early as 2016. This study investigated the effects of rising partial pressure of CO2 (pCO2) and elevated temperature on pre-winter juveniles of the polar pteropod Limacina helicina. After a 29 day experiment in September/October 2009 at three different temperatures and under pCO2 scenarios projected for this century, mortality, shell degradation, shell diameter and shell increment were investigated. Temperature and pCO2 had a significant effect on mortality, but temperature was the overriding factor. Shell diameter, shell increment and shell degradation were significantly impacted by pCO2 but not by temperature. Mortality was 46% higher at 8 °C than at in situ temperature (3 °C), and 14% higher at 1100 μatm than at 230 μatm. Shell diameter and increment were reduced by 10 and 12% at 1100 μatm and 230 μatm, respectively, and shell degradation was 41% higher at elevated compared to ambient pCO2. We conclude that pre-winter juveniles will be negatively affected by both rising temperature and pCO2 which may result in a possible decline in abundance of the overwintering population, the basis for next year's reproduction.

Subfields: Global and Planetary Change, Oceanography

View Paper: https://www.semanticscholar.org/paper/3ccd90cad385c72f28034daded4ef1466c23651f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Global and Planetary Change

1. F. Melzner
2. U. Riebesell
3. Steve Widdicombe
4. P. Calosi
5. M. Gutowska
6. L. Peck
7. S. Lischka
8. J. Thomsen

In Oceanography

1. F. Melzner
2. Steve Widdicombe
3. P. Calosi
4. M. Gutowska
5. R. Feely
6. U. Riebesell
7. Simon Rundle
8. S. Lischka

Citations in the corpus

• Effects of ocean acidification and elevated temperature on shell plasticity and its energetic basis in an intertidal gastropod (2013, background): “Dissolution at the growing tip of the shell under acidified seawater conditions has previously been reported in the planktonic pteropod Limacina helicina (Lischka et al. 2011).”
• Future ocean acidification will be amplified by hypoxia in coastal habitats (2013, background): “2010), even in those that experience external shell dissolution at the same time (Lischka et al. 2011).”
• Chemical and biological impacts of ocean acidification along the west coast of North America (2015, background): “, unpublished results), and can potentially enhance predation pressure and increase energetic costs of vital biological processes (Lischka et al., 2011; Wood et al., 2008; Manno et al., 2012).”
• Synergistic effects of ocean acidification and warming on overwintering pteropods in the Arctic (2012, methodology): “However, synergistic effects were suggested based on a rather low P (perm) value as well as based on the NMDS ordination (Lischka et al., 2011).”
• The Impact of Ocean Acidification on Reproduction, Early Development and Settlement of Marine Organisms (2011, unknown): “Shell diameter, degradation and increment were significantly affected by CO2, but not temperature, whereas the combination of elevated temperature and CO2 increased mortality, yet with temperature the more dominant factor [66].”
• Combined effects of temperature and ocean acidification on the juvenile individuals of the mussel Mytilus chilensis (2014, background): “helicina, where under normocapnic conditions, temperature increase did not affect shell degradation (Lischka et al., 2011).”
• Antarctic Marine Biodiversity: Adaptations, Environments and Responses to Change (2018, background): “Other studies have demonstrated measurable impacts of acidification on pteropods in experiments (Lischka et al. 2011) and from observations of changes in latitude and time (Comeau et al.”