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12 páginas, 7 figuras.Global warming has many biological effects on\udcorals and plays a central role in the regression of tropical\udcoral reefs; therefore, there is an urgent need to understand\udhow some coral species have adapted to environmental\udconditions at higher latitudes. We examined the effects of\udtemperature and light on the growth of the zooxanthellate\udcoral Oculina patagonica (Scleractinia, Oculinidae) at the\udnorthern limit of its distribution in the eastern Iberian\udPeninsula (western Mediterranean) by transplanting colonies\udonto plates and excluding them from space competition\udover a *4-yr period. Each year, most of the colonies\ud(*70%) exhibited denuded skeletons with isolated polyps\udpersisting on approximately half of the coral surface area.\udThese recurrent episodes of partial coral mortality occurred\udin winter, and their severity appeared to be related to colony\udexposure to cold but not to light. Although O. patagonica\udexhibited high resistance to stress, coral linear\udextension did not resume until the coenosarc regenerated.\udThe resumption of linear extension was related to the dissociation\udof the polyps from the coenosarc and the outstanding\udregenerative capacity of this species\ud(10.3 mm2 d-1). These biological characteristics allow the\udspecies to survive at high latitudes. However, the recurrent\udand severe pattern of denuded skeletons greatly affects the\uddynamics of the species and may constrain population\udgrowth at high latitudes in the Mediterranean.Financial support was provided\udby the CSI-Coral project (CGL2013-43106-R) of the Spanish\udGovernment. The authors are part of the Marine Biogeochemistry and\udGlobal Change research group of the Generalitat de Catalunya\ud(2014SGR1029).Peer reviewe

Recurrent partial mortality events in winter shape the dynamics of the zooxanthellate coral Oculina patagonica at high latitude in the Mediterranean