Influence of the canary upwelling system on SST during the unprecedented 2023 North Atlantic marine heatwave.

The heightened occurrence of marine heatwaves (MHWs) attributed to climate change has garnered significant attention, primarily due to its profound impacts on marine ecosystems. Eastern Boundary Upwelling Systems, recognized as high-productivity oceanic areas, have emerged as crucial thermal refuges mitigating the effects of global warming, thereby safeguarding marine fauna and flora. Acknowledging the synergies between MHWs and upwelling becomes pivotal in this context.

Numerical simulation of the deadliest flood event of Portugal: Unravelling the causes of the disaster.

The flood event of November 25 and 26, 1967 corresponds to the deadliest storm affecting Portugal in recent centuries being responsible for >500 fatalities. The main trigger was the heavy rain that fell in just a few hours, provoking a rapid increase in river flows, although other concurrent circumstances had to occur to reach the dramatic water levels estimated in some affected places. However, even today, several important uncertainties related to water levels achieved and timing of floods remain.

Coastal warming under climate change: Global, faster and heterogeneous.

The assessment of expected changes in coastal sea surface temperature (SST) on a global scale is becoming increasingly important due to the growing pressure on coastal ecosystems caused by climate change. To achieve this objective, 17 Global Climate Models from CMIP6 were used, with data from historical and hist-1950 experiments spanning 1982-2050. This analysis highlights significant warming of coastal areas worldwide, with higher and more variable rates of warming than observed in previous decades.

Does global warming threaten small-scale bivalve fisheries in NW Spain?

Shellfisheries of the intertidal and shallow subtidal infaunal bivalves Ruditapes decussatus, Ruditapes philippinarum, Venerupis corrugata and Cerastoderma edule are of great socio-economic importance (in terms of landings) in Europe, specifically in the Galician Rías Baixas (NW Spain). However, ocean warming may threaten these fisheries by modifying the geographic distribution of the species and thus affecting productive areas. The present study analysed the impact of rising ocean temperature on the geographical distribution of the thermal comfort areas of these bivalves throughout the 21st century.

Historical and future naturalization of Magallana gigas in the Galician coast in a context of climate change.

Magallana gigas is a naturalized species on the north coast of Galicia (Rías Altas, Northwest Iberian Peninsula), where it was unintentionally introduced. In recent decades, a greater abundance of M. gigas has been observed on the Galician coast, expanding towards the south, reaching the Artabro Gulf (Rías Centrales, NW Galician coast), probably due to ocean warming.