Data from PhD thesis ...

• Main Author: Strahl, Julia
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Arctica islandica; Iceland; Ocean quahog
• Online Access: https://dx.doi.org/10.1594/pangaea.771788; https://doi.pangaea.de/10.1594/PANGAEA.771788

The ocean quahog, Arctica islandica is the longest-lived non-colonial animal known to science. A maximum individual age of this bivalve of 405 years has been found in a population off the north western coast of Iceland. Conspicuously shorter maximum lifespan potentials (MLSPs) were recorded from other populations of A. islandica in European waters (e.g. Kiel Bay: 30 years, German Bight: 150 years) which experience wider temperature and salinity fluctuations than the clams from Iceland.The aim of my thesis was to identify possible life-prolonging physiological strategies in A. islandica and to examine the modulating effects of extrinsic factors (e.g. seawater temperature, food availability) and intrinsic factors (e.g. species-specific behavior) on these strategies. Burrowing behavior and metabolic rate depression (MRD), tissue-specific antioxidant and anaerobic capacities as well as cell-turnover (= apoptosis and proliferation) rates were investigated in A. islandica from Iceland and the German Bight. An ... : 25 Excel files, Office Open XML (.xlsx), zipped. Language: german ...