Abstract
Coral reef ecosystems are most vulnerable to changes in sea surface temperature (SST), a key environmental factor critical to reef-building growth. Elevated SST reduces the ability of corals to produce their calcium carbonate skeletons. Prolonged high SST results in coral bleaching, owing to the uncoupling of symbiosis among corals and microalgae. Corals have narrow temperature tolerances. The skeletal growth rate of corals falls sharply to zero even at a slight increase of SST above its temperature tolerance level. Corals are also vulnerable to macroalgal toxicity. Several benthic macroalgae species are known to bring about allelopathic chemical compounds that are very harmful to corals. The toxic macroalgae produce allelochemicals for which the survivability and settlement of coral larvae are highly affected. Toxic macroalgae species damage coral tissues when in contact by transferring hydrophobic allelochemicals present on macroalgal surfaces, leading to a reduction of corals and even coral mortality. The abundance of toxic macroalgae changes the community structure toward a macroalgae-dominated reef ecosystem. We use a continuous-time model to investigate coral-macroalgal phase shifts in the presence of elevated SST and macroalgal toxicity. We have derived the conditions for locally asymptotic stability of steady states. Computer simulations have been carried out to illustrate different analytical results.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Hoegh-Guldberg, O.: Climate change, coral bleaching and the future of the world’s coral reefs. Marine Freshwater Res. 50(8), 839–866 (1999)
Bruno, J.F., Sweatman, H., Precht, W.F., Selig, E.R., Schutte, V.G.: Assessing evidence of phase shifts from coral to macroalgal dominance on coral reefs. Ecology 90(6), 1478–1484 (2009)
Albins, M.A., Hixon, M.A.: Invasive Indo-Pacific lionfish Pterois volitans reduce recruitment of Atlantic coral-reef fishes. Mar. Ecol. Prog. Ser. 367, 233–238 (2008)
Birrell, C. L., McCook, L. J., Willis, B. L., Diaz-Pulido, G. A.: Effects of benthic algae on the replenishment of corals and the implications for the resilience of coral reefs. Oceanogr. Mar. Biol. Annu. Rev. 46, 25–63 (2008)
Jompa, J., McCook, L.J.: Effects of competition and herbivory on interactions between a hard coral and a brown alga. J. Exp. Mar. Biol. Ecol. 271(1), 25–39 (2002)
Harriott, V., Banks, S.: Latitudinal variation in coral communities in eastern Australia: a qualitative biophysical model of factors regulating coral reefs. Coral Reefs 21(1), 83–94 (2002)
Crabbe, M.J.C.: Climate change, global warming and coral reefs: modelling the effects of temperature. Comput. Biol. Chem. 32(5), 311–314 (2008)
Hughes, T.P., Baird, A.H., Bellwood, D.R., Card, M., Connolly, S.R., Folke, C., ... & Roughgarden, J.: Climate change, human impacts, and the resilience of coral reefs. Science 301(5635), 929–933 (2003)
Crabbe, M.J.C.: Climate change and tropical marine agriculture. J. Exp. Botany 60(10), 2839–2844 (2009)
Lough, J.M.: Coral calcification from skeletal records revisited. Mar. Ecol. Prog. Ser. 373, 257–264 (2008)
Done, T.J.: Coral community adaptability to environmental change at the scales of regions, reefs and reef zones. Am. Zool. 39(1), 66–79 (1999)
Lough, J.M.: 1997–98: Unprecedented thermal stress to coral reefs?. Geophys. Res. Lett. 27(23), 3901–3904 (2000)
Mumby, P.J., Hastings, A., Edwards, H.J.: Thresholds and the resilience of Caribbean coral reefs. Nature 450(7166), 98–101 (2007)
Blackwood, J.C., Hastings, A., Mumby, P.J.: The effect of fishing on hysteresis in Caribbean coral reefs. Theor. Ecol. 5(1), 105–114 (2012)
Bhattacharyya, J., Pal, S.: Hysteresis in coral reefs under macroalgal toxicity and overfishing. J. Biol. Phys. 41(2), 151–172 (2015)
Perko, L.: Differential equations and dynamical systems (Vol. 7). Springer Science & Business Media (2013)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Maity, S.S., Bhattacharyya, J., Pal, S. (2024). Effects of Rising Sea Surface Temperature on the Dynamics of Coral-Algal Interactions. In: Lacarbonara, W. (eds) Advances in Nonlinear Dynamics, Volume III. ICNDA 2023. NODYCON Conference Proceedings Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50635-2_57
Download citation
DOI: https://doi.org/10.1007/978-3-031-50635-2_57
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-50634-5
Online ISBN: 978-3-031-50635-2
eBook Packages: EngineeringEngineering (R0)