 |
| Titel |
The metabolic response of pteropods to acidification reflects natural CO2-exposure in oxygen minimum zones |
| VerfasserIn |
A. E. Maas, K. F. Wishner, B. A. Seibel |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1726-4170
|
| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 9, no. 2 ; Nr. 9, no. 2 (2012-02-15), S.747-757 |
| Datensatznummer |
250006765
|
| Publikation (Nr.) |
 copernicus.org/bg-9-747-2012.pdf |
|
|
|
|
|
| Zusammenfassung |
| Shelled pteropods (Thecosomata) are a group of holoplanktonic mollusks that
are believed to be especially sensitive to ocean acidification because their
aragonitic shells are highly soluble. Despite this concern, there is very
little known about the physiological response of these animals to conditions
of elevated carbon dioxide. This study examines the oxygen consumption and
ammonia excretion of five pteropod species, collected from tropical regions
of the Pacific Ocean, to elevated levels of carbon dioxide (0.10%, 1000 ppm).
Our results show that pteropods that naturally migrate into oxygen
minimum zones, such as Hyalocylis striata, Clio pyramidata, Cavolinia longirostris and
Creseis virgula, were not affected by carbon dioxide at the levels
and duration tested. Diacria quadridentata, which does not migrate, responds to high carbon dioxide
conditions with reduced oxygen consumption and ammonia excretion. This
indicates that the natural chemical environment of individual species may
influence their resilience to ocean acidification. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|