Alterations in seawater pH and CO2 affect calcification and photosynthesis in the tropical coralline alga, Hydrolithon sp. (Rhodophyta)

By I. S. Semesi, J. Kangwe, M. Björk. 2009

154 citations recorded by the source corpus.

Subfields: Ecology, Oceanography

View Paper: https://www.semanticscholar.org/paper/30c26c0eb71dec16125e9dde21ecfe3a9e76c6d1

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In Ecology

1. R. Carpenter
2. Maggie D. Johnson
3. M. Roleda
4. L. Hofmann
5. K. Bischof
6. J. Smith
7. S. Beer
8. David John Suggett

In Oceanography

1. M. Roleda
2. K. Bischof
3. R. Carpenter
4. Maggie D. Johnson
5. L. Hofmann
6. S. Beer
7. J. Smith
8. C. Hurd

Citations in the corpus

• Climate change and ocean acidification effects on seagrasses and marine macroalgae (2013, background): “While seagrasses can raise XCaCO3 during the day, their leaves, along with highly organic sediments, have high respiratory demands, particularly under coastal eutrophication, which can depress pH at night to values (7.8; Semesi et al., 2009b) that would promote dissolution.”
• Ocean acidification and warming decrease calcification in the crustose coralline alga Hydrolithon onkodes and increase susceptibility to grazing (2012, methodology): “, 2008), and calcification (Gao et al., 1993; Semesi et al., 2009) of crustose coralline algae by manipulating only pCO2, often by different methods (e.”
• Species-specific consequences of ocean acidification for the calcareous tropical green algae Halimeda (2011, background): “…have been documented for some species of corals and for crustose coralline algae in response to elevated pCO2 (Anthony et al. 2008), but other studies have found enhancement of photosynthesis for red calcified algae (Semesi et al. 2009b) and coccolithophores (Iglesias-Rodriguez et al. 2008).”
• Ocean acidification effects on calcifying macroalgae (2014, background): “…Neogoniolithon), calcification and photosynthetic rates decrease under elevated CO2 conditions, as well as their cover and recruitment (Anthony et al. 2008, Jokiel et al. 2008, Kuffner et al. 2008, Andersson et al. 2009, Ries et al. 2009, Semesi et al. 2009, Campbell 2012, Comeau et al. 2013).”
• Seagrass photosynthesis controls rates of calcification and photosynthesis of calcareous macroalgae in a tropical seagrass meadow (2009, background): “Chwaka Bay (Zanzibar, Tanzania) is dominated by those same seagrasses previously found capable of increasing the pH of their surrounding seawater up to 9.2 (Beer et al. 2006), and it also contains large amounts of calcifying algae such as Hydrolithon sp. (Semesi et al. 2009).”
• Ocean acidification and seaweed reproduction: increased CO2 ameliorates the negative effect of lowered pH on meiospore germination in the giant kelp Macrocystis pyrifera (Laminariales, Phaeophyceae) (2012, background): “Previous OA research has focused on calcareous species such as coralline red or green seaweeds (e.g., Borowitzka & Larkum, 1986; Gao et al., 1993; Kuffner et al., 2008; Martin & Gattuso, 2009; Semesi et al., 2009; Gao & Zheng, 2010), and there have been relatively few studies on the effects on nonca”
• Mangrove and Seagrass Beds Provide Different Biogeochemical Services for Corals Threatened by Climate Change (2016, background): “…that the variability in carbonate 511 chemistry of seagrass habitats is tightly coupled with the local cover of photoautotrophs (field 512 studies: Manzello et al., 2012; Hendriks et al., 2014; modelling: Unsworth et al., 2012; 513 laboratory analysis: Semesi et al., 2009b; Anthony et al., 2011).”
• Diversity of carbon use strategies in a kelp forest community: implications for a high CO2 ocean (2011, background): “Short-term experiments on how organisms respond to the changed inorganic carbon concentration and speciation and decreasing pH continue to multiply (e.g. Anthony et al., 2008; Gao & Zheng, 2009; Martin & Gattuso, 2009; Russell et al., 2009; Semesi et al., 2009).”
• Reviews and syntheses: Calculating the global contribution of coralline algae to total carbon burial (2015, background): “For example, Semesi et al. (2009) ob- served an increase in photosynthetic rates of coralline algae with a rising pCO2 of seawater, however, whether this also translates to their accretion at longer timescales is still not clear.”