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- W1593782358 abstract "The ecophysiology of calcified macroalgal species of the genera Corallina (C.officinalis and C. caespitosa) and Ellisolandia (E. elongata) (Corallinales,Rhodophyta) was examined in intertidal rock pools of the NE Atlantic, to facilitatepredictions of ocean-acidification and warming impacts on these ecosystemengineers. An initial phylogenetic study highlighted significant cryptic diversitywithin the genus Corallina, and demonstrated that C. officinalis is restrictedpredominantly to the North Atlantic, while the recently established C. caespitosashows a cosmopolitan distribution. Three subsequent studies were performed acrossthe NE Atlantic (Iceland to northern Spain) to examine (i) the production, respiration,calcification and growth of Corallina in relation to irradiance, water temperature, andcarbonate chemistry; (ii) the photoacclimation and photoregulation strategies ofCorallina and Ellisolandia; and (iii) the recent-past (1850 – 2010) and present-dayskeletal mineralogy (Mg/Ca ratios) of Corallina and Ellisolandia and its relationshipto sea surface temperature. Data demonstrated that species currently experiencesignificant seasonal and tidal fluctuations in abiotic conditions that may be importantwhen considering future responses to ocean-acidification and climate-change.Seasonality in production, calcification and growth were demonstrated, withdecreasing growth observed with increasing latitude. Photoacclimation to allowmaximal light utilisation during winter periods, and photoregulation via nonphotochemicalquenching were highlighted as important in allowing Corallina andEllisolandia to maintain maximal productivity while controlling for photo-stress.Seasonal cycles in skeletal Mg incorporation were demonstrated with strong relationto sea surface temperature, though no significant change in skeletal mineralogy wasevident since pre-industrial times. Taken together, data indicated that Corallina andEllisolandia have the potential to survive under future ocean-acidification andwarming conditions, though loss of species at high latitudes and shifts in the relativeabundances of species across the region is likely to be evident, with overall rangecontraction predicted for C. officinalis due to both warming and ocean-acidificationimpacts" @default.
- W1593782358 created "2016-06-24" @default.
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- W1593782358 date "2015-01-01" @default.
- W1593782358 modified "2023-09-27" @default.
- W1593782358 title "The impacts of ocean acidification on calcifying macroalgae" @default.
- W1593782358 hasPublicationYear "2015" @default.
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