But in this first-ever account of a long-term project in the southern Caribbean, a Stony Brook professor and his colleagues report in this week’s Proceedings of the National Academy of Sciences U.S.A. that tropical ecosystems are also affected by global climatic trends - and with accompanying economic impacts.
In an article entitled, “Ecosystem responses in the southern Caribbean Sea to global climate change,” Dr. Gordon Taylor and colleagues from Stony Brook University’s School of Marine and Atmospheric Sciences (SoMAS), as well as the University of South Florida, University of South Carolina and two Venezuelan institutions (EDIMAR, Fundación de la Salle de Ciencias Naturales and Universidad de Oriente) provide an analysis of 14 years of continuous monthly oceanographic observations in the southern Caribbean off the coast of Venezuela. The research, known as the CARIACO Ocean Time-Series Program, has been continually funded by the National Science Foundation since 1995.
The researchers report how the complex food web overlying the Cariaco Basin has changed in this relatively short time frame. Microscopic plankton production has steadily declined and the species of plants supporting the food web have shifted. These ecosystem changes have affected the way this region exchanges carbon dioxide (CO2) with the atmosphere and, in part, caused local sardine fisheries to collapse and thus have a negative impact on Margarita Island economy.
The researchers link these ecosystem changes to declining upwelling of nutrient-rich waters caused by weakening Trade Winds in the region and an average sea surface warming of 1°C during their observations. According to the authors, all these changes trace back to the global heat budget, corresponding to climatic shifts in well-known indices of atmospheric circulation. This is the first report to link long-term, shipboard time-series oceanographic and local meteorological observations in the Tropics with global scale climatic changes.
The CARIACO Ocean Time-Series Program is currently funded by NSF to continue monthly sampling until the end of 2013 and has a five-year renewal proposal pending. “We will continue with the same measurements,” said Dr. Taylor. “This also includes looking at ocean acidification, molecular characterization of microbial communities and cycling of major elements.”
Office of Media Relations | Newswise Science News
Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel
Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)
Magnetic resonance imaging, or MRI, is a widely used medical tool for taking pictures of the insides of our body. One way to make MRI scans easier to read is...
At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.
Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
26.04.2018 | Power and Electrical Engineering
26.04.2018 | Life Sciences
26.04.2018 | Power and Electrical Engineering