BUSCADOR RECOLECTA

The Galician coast, with 1498 km of shoreline, is located in the northwest corner of the Iberian Peninsula. This area is the northern boundary of the Canary upwelling system, at the transition between the subtropical and subpolar regimes of the North Atlantic, which makes it of particular interest for the detection of marine ecosystem changes. Relationships between the occurrence of non-native marine fishes in this coastal area and sea surface temperature fluctuations are investigated. Information about fish species were collected from published and unpublished material recorded since 1945, and with regular monitoring data since 1983. A total of 50 new additions to the Galician marine ichthyofauna were recorded over the period 1945–2022. One of these species, Cynoscion regalis (Sciaenidae), is considered an introduced species. Most of the remaining 49 species are the result of latitudinal range expansions, including 15 species that have reached the northern limit of their distribution in the north-east Atlantic. This evidence points towards the tropicalization of the Galician fish fauna. Satellite sea-surface temperatures over the period 1982–2020 showed that Galician oceanic and coastal waters are, respectively, 0.78 ± 0.01 °C and 0.32 ± 0.01 °C warmer than 40 years ago. This ocean warming, added to the high productivity of the area and the oceanographic features, support the different ranges of expansion found in marine fishes, reinforcing the process of tropicalization. The increasing presence of new marine fishes in Galician waters could lead to relevant impacts on this ecosystem, like the emergence of new fish parasites and the increase of top predators and herbivorous fish among others., Agencia Estatal de Investigación | Ref. PTA2019-017492-I, Xunta de Galicia | Ref. ED431C 2019/28

6 files, The dataset RAIA_Hydric_Balance_v01 contains annual and summer time series of hydric balance calculated from 13 meteorological stations located in the región of Galicia (NW Iberian Peninsula) and managed by Meteogalicia and AEMET, Funding for this dataset was provided by the Spanish Ministry of Science and Innovation through a Personal Técnico de Apoyo grant (PTA2019-017492-I) and the CAPTA project (CAPTA 0062_CAPTA_1_E, POCTEP 2021-2027), No

6 files, The dataset RAIA_Flow_Rates_v01 contains monthly, annual and summer time series and anual trends of flow rates from 12 hydrological stations retrieved from Meteogalicia (https://www.meteogalicia.gal/web/observacion/portada) and managed by Augas de Galicia (https://augasdegalicia.xunta.gal/), Confederación Hidrológica del Miño-Sil O.A. (https://www.chminosil.es/es/) and Sistema Nacional de Informação de Recursos Hidricos (https://snirh.apambiente.pt/), Funding for this dataset was provided by the Spanish Ministry of Science and Innovation through a Personal Técnico de Apoyo grant (PTA2019-017492-I) and the CAPTA project (CAPTA 0062_CAPTA_1_E, POCTEP 2021-2027), RAIA_FR_Stations.csv.-- RAIA_Monthly_FR.xlsx..- RAIA_Annual_FR.xlsx.-- RAIA_Trends_annual_FR_Stations.csv.-- RAIA_Year_cycle_FR.xlsx, Peer reviewed

9 files, The dataset OCEAN_WARMING_SST_v01 contains: Monthly, summer, winter and annual time series and trends of Sea Surface Temperature (SST) from 6 oceanic buoys and 3 CTDS stations managed by Observatorio Costeiro da Xunta de Galicia (OCXG,https://observatoriocosteiro.gal/es), Funding for this dataset was provided by the Spanish Ministry of Science and Innovation through a Personal Técnico de Apoyo grant (PTA2019-017492-I) and the CAPTA project (CAPTA 0062_CAPTA_1_E, POCTEP 2021-2027), No