Marine heatwaves are dramatically affecting the marine ecosystems of the world and the Mediterranean is no exception. In the Mediterranean, these extreme climate episodes and its resulting massive mortality of species are getting more and more intense and frequent. To date, most of the studies analysed the effects of these perturbations on specific species and populations, although researchers still do not know how this affects the functioning of the involved ecosystems.
A new study led by the UB and the Institute of Marine Sciences (ICM-CSIC) has stated that marine heatwaves are having a strong impact on the functioning of coraligen, one of the most emblematic habitats of the Mediterranean due to the high diversity of species it covers and the high number of ecosystem services it provides.
The study states the loss of the few species that bring structural complexity to these coralline communities, that is, the architects of these habitats. An example of this is the gorgonian coral, which acts as forest trees and offers shelter to a great amount of marine species. According to the study, published in the journal Ecology Letters, gorgonians have been severely affected over the last years by several episodes of massive mortality caused by marine heatwaves in the Mediterranean.
Read more at: University of Barcelona
The results of the study stress the devastating effects of the climate change in habitats that are essential for marine life in the Mediterranean. (Photo Credit: Joaquim Garrabou (ICM-CSIC))