Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2012 |
| Auteurs (3) | : | COMEAU Steeve ALLIOUANE Samir GATTUSO Jean-pierre |
| Revue scientifique | : | Marine Ecology-Progress Series |
| Volume | : | 456 |
| Fascicule | : | |
| Pages | : | 279-284 |
| DOI | : | 10.3354/meps09696 |
| URL | : | <go to isi>://wos:000304914500024 |
| Abstract | : | Pteropods are planktonic mollusks that play an important role in the food web of various ecosystems, particularly at high latitudes. Because they produce an aragonitic shell, ptero pods are expected to be very sensitive to ocean acidification driven by anthropogenic CO2 emissions. The effect of ocean acidification was investigated using juveniles of the Arctic pteropod Limacina helicina from the Canada Basin of the Arctic Ocean. The animals were maintained in 3 controlled pH conditions (total scale pH [pH(T)] approximate to 8.05, 7.90 or 7.75) for 8 d, and their mortality and the linear extension of their shell were monitored. The pH did not impact the mortality rate, but the linear extension of the shell decreased as a function of declining pH. Surprisingly, the ptero pods were still able to extend their shell at an aragonite saturation state as low as 0.6. Nevertheless, dissolution marks were visible on the whole shell, indicating that calcium carbonate dissolution had also occurred, casting doubts on the ability of the pteropods to maintain a positive balance between precipitation and dissolution of calcium carbonate under corrosive conditions. |
| Mots-clés | : | - |
| Commentaire | : | Times Cited: 7 8 |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Comeau S, Alliouane S, Gattuso J-P (2012) Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina. Mar Ecol Prog Ser 456: 279-284 | doi: 10.3354/meps09696
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