13 August 2019

The Institute of Marine Sciences (ICM-CSIC) leads a study, published in Global Change Biology, which proposes a conceptual framework and classification for ocean acidification refugia (OAR) for the first time. OARs are specific locations where ocean acidification impacts could be less intense, protecting biodiversity.

OARs can be spatial, where a physical barrier minimizes exposure to low pH seawater; or adaptive, where conditions stimulate genetic adaptation. In the first case, the species are protected against the extreme conditions of acidification, such as in deep-sea mountains or points of high primary production. In the second, organisms are exposed to low pH seawater intermittently, as occurs, for example, in areas with frequent deep seawater upwelling, where species can develop adaptation mechanisms.

Dr. Lydia...

8 August 2019

Marine bacteria that capture light and transform it into biochemical energy are not a rarity, as previously thought. A work published this week in the journal Science Advances, with the participation of the Institute of Marine Sciences (ICM-CSIC), shows that sunlight, the main source of energy sustaining marine ecosystems, is mainly captured by bacteria, and not by algae and cyanobacteria (also called blue-green algae), as previously thought.

The work is led by Laura Gómez Consarnau, who was a Marie Curie researcher at the ICM-CSIC when she did the work and currently works at the Center for Scientific Research and Higher Education in Ensenada (Mexico) and at the University of Southern California (USA).

Heterotrophic bacteria normally feed by degrading organic matter. But in the sea and other aquatic systems, some...

6 August 2019

On Tuesday, July 23rd, a delegation from the National Ocean Satellite Application Service (which belongs to the Ministry of Natural Resources of China), led by Prof. Jianqiang LIU (Deputy Director of NSOAS), visited the Institute of Marine Sciences (ICM-CSIC). The aim of the visit was to promote the Chinese ocean satellite programme and to seek strategic collaboration with the Barcelona Expert Centre (BEC) on remote sensing activities.

The Chinese ocean satellite programme includes ocean colour (HY-1 satellite series), ocean dynamic monitoring (sea surface wind, ocean surface topography, and sea surface temperature and salinity from HY-2 series), and synthetic aperture radar (SAR, HY-3 series) missions. BEC has indeed wide experience in scatterometry/SAR (winds) and L-band radiometry (salinity) and is eager to collaborate with...

23 July 2019

A study led by the Institute of Marine Sciences (ICM-CSIC) and the Doñana Biological Station (EBD-CSIC) has monitored a series of seagulls to know their movements and create a pathogen transmission risk map. The study, published in Scientific Reports, evaluates the possible spread of pathogens through animals in environments inhabited by humans.

Some species of seagulls that have colonized urban areas can affect public health by carrying pathogens such as bacteria and viruses. How seagulls spread them was unknown until now. Scientists from ICM and EBD have studied space movements in different individuals of yellow-legged gulls (Larus michahellis) in the south of the Iberian Peninsula. The seagulls followed were carriers of at least one of the three main zoonotic bacteria monitored within the epidemiological...

18 July 2019

Fisheries represent one of the main economic sectors affected by marine litter. The amount of garbage trapped in the networks can also damage ships and rigging. A study by the Institute of Marine Sciences has evaluated the amount and type of marine litter in the shallow waters of two fishing areas, the Delta del Ebro (Tarragona) and Vilanova i la Geltrú (Barcelona). Both areas are part of the Natura 2000 network.

The study, co-directed by Eve Galimany, scientist at ICM-CSIC, and Elena Marco-Herrero, scientist at ICM-CSIC then and now at the Balearic Islands IEO, was carried out with the collaboration of artisanal fishermen from both locations.

The results reveal that in the area of ​​Vilanova i la Geltrú, close to very populated areas and very busy navigation routes, marine litter can be up to 38% of...