Data from: Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae ...
Concurrent anthropogenic global climate change and ocean acidification is expected to have a negative impact on calcifying marine organisms. While knowledge of biological responses of organisms to oceanic stress has emerged from single species experiments, these do not capture ecologically relevant...
| Main Authors: | , , , , , |
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| Format: | Dataset |
| Language: | English |
| Published: |
Dryad
2020
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.qv9s4mwbw https://datadryad.org/stash/dataset/doi:10.5061/dryad.qv9s4mwbw |
| Summary: | Concurrent anthropogenic global climate change and ocean acidification is expected to have a negative impact on calcifying marine organisms. While knowledge of biological responses of organisms to oceanic stress has emerged from single species experiments, these do not capture ecologically relevant scenarios where the potential for multi-organism physiological interactions is assessed. Marine algae provide an interesting case study, as their photosynthetic activity elevates pH in the surrounding microenvironment, potentially buffering more acidic conditions for associated epiphytes. We present findings that indicate increased tolerance of an important epiphytic foraminifera, Marginopora vertebralis, to the effects of increased temperature (±3 °C) and pCO2 (~1000 µatm) when associated with its common algal host, Laurencia intricata. Specimens of M. vertebralis were incubated for 15 days in flow-through aquaria simulating current and end-of-century temperature and pH conditions. Physiological measures of ... : Collection and acclimation Specimens of Marginopora vertebralis (as identified by Renema 2018) and Laurencia intricata were collected from Coconut Beach (1-3 m depth), Lizard Island (014°40’08”S, 145°27’34”E) on the Great Barrier Reef, Australia, in October 2015 (Fig. 1). Samples were immediately transported back to Lizard Island Research Station and placed into flow-through ambient seawater conditions and light for 5 days to acclimate to laboratory conditions. Specimens of L. intricata were then separated into ~1 g (wet weight) replicates, and all visible epiphytes (M. vertebralis and other LBFs such as Calcarina hispida, Amphistegina lobifera, and Baculogypsina sphaerulata) removed. The M. vertebralis were separated into experimental replicates in which 6 M. vertebralis (~0.5 g wet weight, all approximately similar size of ~5 mm diameter) were placed into 60 mL jars with 40 mL of seawater, similar to densities found in situ (Doo, pers. obs.). The experimental treatment groups of M. vertebralis only, and L. ... |
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