www.nature.com/scientificreports

OPEN

Impacts of light limitation on corals and crustose coralline algae Pia Bessell-Browne   1,2,3, Andrew P. Negri1,3, Rebecca Fisher1,3, Peta L. Clode   2 & Ross Jones1,3

Received: 22 February 2017 Accepted: 30 August 2017 Published: xx xx xxxx

Turbidity associated with elevated suspended sediment concentrations can significantly reduce underwater light availability. Understanding the consequences for sensitive organisms such as corals and crustose coralline algae (CCA), requires an understanding of tolerance levels and the time course of effects. Adult colonies of Acropora millepora and Pocillopora acuta, juvenile P. acuta, and the CCA Porolithon onkodes were exposed to six light treatments of ~0, 0.02, 0.1, 0.4, 1.1 and 4.3 mol photons m−2 d−1, and their physiological responses were monitored over 30 d. Exposure to very low light (

Impacts of light limitation on corals and crustose coralline algae.

Turbidity associated with elevated suspended sediment concentrations can significantly reduce underwater light availability. Understanding the consequ...
4MB Sizes 0 Downloads 6 Views