Southern Ocean pteropods at risk from ocean warming and acidification
| Autor: | Dorothee C. E. Bakker, Geraint A. Tarling, Jessie Gardner, Victoria L Peck, Clara Manno |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences Effects of global warming on oceans Population Climate change Aquatic Science Biology engineering.material 01 natural sciences Limacina helicina antarctica 14. Life underwater education Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences Original Paper Potential impact education.field_of_study Ecology 010604 marine biology & hydrobiology Aragonite Ocean acidification Early life Oceanography 13. Climate action engineering |
| Zdroj: | Marine Biology |
| DOI: | 10.1007/s00227-017-3261-3 |
| Popis: | Early life stages of marine calcifiers are particularly vulnerable to climate change. In the Southern Ocean aragonite undersaturation events and areas of rapid warming already occur and are predicted to increase in extent. Here, we present the first study to successfully hatch the polar pteropod Limacina helicina antarctica and observe the potential impact of exposure to increased temperature and aragonite undersaturation resulting from ocean acidification (OA) on the early life stage survival and shell morphology. High larval mortality (up to 39%) was observed in individuals exposed to perturbed conditions. Warming and OA induced extensive shell malformation and dissolution, respectively, increasing shell fragility. Furthermore, shell growth decreased, with variation between treatments and exposure time. Our results demonstrate that short-term exposure through passing through hotspots of OA and warming poses a serious threat to pteropod recruitment and long-term population viability. Electronic supplementary material The online version of this article (10.1007/s00227-017-3261-3) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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