Masterarbeit: Growth rates of Desmophyllum dianthus – Effect of association with endolithic algae
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Vertical and horizontal distribution of Desmophyllum dianthus in Comau Fjord, Chile: a cold-water coral thriving at low pH
Cold-water corals provide an important habitat for a rich fauna along the continental margins and slopes. Although these azooxanthellate corals are considered particularly sensitive to ocean acidification, their responses to natural variations in pH and aragonite saturation are largely unknown due to the difficulty of studying their ecology in deep waters. Previous SCUBA investigations have sho...
متن کاملPhysiological response of the cold-water coral Desmophyllum dianthus to thermal stress and ocean acidification
Rising temperatures and ocean acidification driven by anthropogenic carbon emissions threaten both tropical and temperate corals. However, the synergistic effect of these stressors on coral physiology is still poorly understood, in particular for cold-water corals. This study assessed changes in key physiological parameters (calcification, respiration and ammonium excretion) of the widespread c...
متن کاملCalcification is not the Achilles' heel of cold-water corals in an acidifying ocean.
Ocean acidification is thought to be a major threat to coral reefs: laboratory evidence and CO2 seep research has shown adverse effects on many coral species, although a few are resilient. There are concerns that cold-water corals are even more vulnerable as they live in areas where aragonite saturation (Ωara ) is lower than in the tropics and is falling rapidly due to CO2 emissions. Here, we p...
متن کاملDevelopment of Microsatellite Markers in the Deep-Sea Cup Coral Desmophyllum dianthus by 454 Sequencing and Cross-Species Amplifications in Scleractinia Order.
Microsatellite loci were isolated for the first time for the deep-sea coral Desmophyllum dianthus, using 454 GS-FLX Titanium pyrosequencing. We developed conditions for amplifying 24 markers in 10 multiplex reactions. Three to 16 alleles per locus were detected across 25 samples analyzed from Santa Maria di Leuca coral province (Mediterranean Sea). For the 24 polymorphic loci, observed and expe...
متن کاملDesmophyllum dianthus (Esper, 1794) in the Scleractinian Phylogeny and Its Intraspecific Diversity
The cosmopolitan solitary deep-water scleractinian coral Desmophyllum dianthus (Esper, 1794) was selected as a representative model species of the polyphyletic Caryophylliidae family to (1) examine phylogenetic relationships with respect to the principal Scleractinia taxa, (2) check population structure, (3) test the widespread connectivity hypothesis and (4) assess the utility of different nuc...
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