The role of the endolithic alga Ostreobium spp. during coral bleaching recovery.

ABSTRACT: In this study, we explore how the Caribbean coral Orbicella faveolata recovers after bleaching, using fragments from 13 coral colonies exposed to heat stress (32 °C) for ten days. Biological parameters and coral optical properties were monitored during and after the stress. Increases in both, the excitation pressure over photosystem II (Qm) and pigment specific absorption (a*_Chla) were observed in the stressed corals, associated with reductions in light absorption at the chlorophyll a red peak (D_e675) and symbiont population density. All coral fragments exposed to heat stress bleached but a fraction of the stressed corals recovered after removing the stress, as indicated by the reductions in Q_m and increases in D_e675 and the symbiont population o

SUBMITTER: Galindo-Martinez CT 

PROVIDER: S-EPMC8863988 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature