| Title | Extreme sensitivity of biological function to temperature in Antarctic marine species |
| Author | Peck, L.S.; Webb, K.E.; Bailey, D.M. |
| Source | Functional Ecology, 18(5), p.625-630, . Publisher: Blackwell Scientific Publications, Oxford, United Kingdom. ISSN: 0269-8463 |
| Publication Date | 2004 |
| Notes | In English GeoRef Acc. No: 287629 |
| Index Terms | Atlantic Ocean--South Atlantic; Southern Ocean; Adamussium colbecki; adaptation; Atlantic Ocean; behavior; biology; Bivalvia; climate change; ecology; Gastropoda; habitat; Invertebrata; Laternula elliptica; living taxa; Mollusca; Nacella concinna; physiology; South Atlantic; temperature |
| Abstract | Tests hypothesis that stenothermal nature of Antarctic marine species is caused by limited aerobic scopes by measuring abilities of limpet Nacella concinna, bivalve mollusc Laternula elliptica and scallop Adamussium colbecki to perform activities. In biological functions important to long-term survival N. concinna and L. elliptica both survive a few days in experiments at 9-10°C, but suffer 50% failure in essential biological activities at 2-3°C and complete loss at 5°C. Scallop A. colbecki is even more sensitive and loses ability to swim as temperature approaches 2°C. These failures of activity are caused by loss of aerobic capacity, and animals investigated are so sensitive that 2°C rise in sea temperature could cause population or species removal from Southern Ocean. |
| Publication Type | journal article |
| Record ID | 84795 |