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Energy metabolism and cellular homeostasis trade-offs provide the basis for a new type of sensitivity to ocean acidification in a marine polychaete at a high-CO2 vent: adenylate and phosphagen energy pools versus carbonic anhydrase
Turner, L.M.; Ricevuto, E.; Massa-Gallucci, A.; Gambi, M.C.; Calosi, P. (2015). Energy metabolism and cellular homeostasis trade-offs provide the basis for a new type of sensitivity to ocean acidification in a marine polychaete at a high-CO2 vent: adenylate and phosphagen energy pools versus carbonic anhydrase. J. Exp. Biol. 218(14): 2148-2151. https://dx.doi.org/10.1242/jeb.117705
In: The Journal of Experimental Biology. Cambridge University Press: London. ISSN 0022-0949; e-ISSN 1477-9145, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoorden
    Climate Change > Climate Change General
    Environmental Managers & Monitoring
    Marine Sciences
    Marine Sciences > Marine Sciences General
    Scientific Community
    Scientific Publication
    Marien/Kust
Author keywords
    Individual approach; P-CO2; Climate change; Homeostatic capacity;Annelid; Mediterranean Sea

Project Top | Auteurs 
  • Association of European marine biological laboratories, meer

Auteurs  Top 
  • Turner, L.M.
  • Ricevuto, E.
  • Massa-Gallucci, A.
  • Gambi, M.C., meer
  • Calosi, P.

Abstract
    Species distributions and ecology can often be explained by their physiological sensitivity to environmental conditions. Whilst we have a relatively good understanding of how these are shaped by temperature, for other emerging drivers, such as PCO2 we know relatively little. The marine polychaete Sabella spallanzanii increases its metabolic rate when exposed to high PCO2 conditions and remains absent from the CO2 vent of Ischia. To understand new possible pathways of sensitivity to CO2 in marine ectotherms, we examined the metabolic plasticity of S. spallanzanii exposed in situ to elevated PCO2 by measuring fundamental metabolite and carbonic anhydrase concentrations. We show that whilst this species can survive elevated PCO2 conditions in the short term, and exhibits an increase in energy metabolism, this is accompanied by a significant decrease in carbonic anhydrase concentration. These homeostatic changes are unlikely to be sustainable in the longer term, indicating S. spallanzanii may struggle with future high PCO2 conditions.

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