Influence of local habitat on the physiological responses of large benthic foraminifera to temperature and nutrient stress.

ABSTRACT: Large benthic foraminifera (LBF) are important for reef sediment formation, but sensitive to elevated temperature and nutrients. However, it is possible that conspecific foraminifera living in different reef sites present divergent response to environmental shifts. We investigated how populations of Amphistegina lobifera from reef sites located along a temperature and nutrient gradient of the northern Great Barrier Reef respond and acclimate to elevated temperature and nitrate under lab-controlled conditions. Generalized linear mixed models showed that interaction between reef sites and temperature or nitrate conditions had a significant effect on survivorship, bleaching frequency and growth rates of A. lobifera. Further physiological analyses of antioxidant capacity and Ca-ATPase activity

SUBMITTER: Prazeres M 

PROVIDER: S-EPMC4763287 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature