A particular group of marine bacteria is able to provide a large fraction of the nutrients needed for coral reef ecosystems to flourish. This is the striking result of a year-long study carried out at the Red Sea in Jordan by an international research team led by Prof. Dr. Christian Wild (Marine Ecology, University of Bremen). These findings have now been published in the prestigious journal “Ecosystems” by lead author Dr. Ulisse Cardini, who recently (3/2015) obtained his PhD at the University of Bremen.
An entire reef habitat examined
In their study, the group of scientists collected a large dataset of physiological measurements for all key photosynthetic organisms and their associated bacteria in a Red Sea fringing reef in Aqaba (Jordan) over the course of the entire year 2013.
After collecting the field data, researchers extrapolated their results to the entire reef habitat using complex geospatial analyses. By doing so, they demonstrated that a specific group of bacteria is able to provide important nutrients to the entire reef habitat.
This is particularly the case when the organisms’ need of nutrients is highest, because of the lack of alternative nutrient sources.
Additionally, the research team found that the activity of these “nutrient-providing” bacteria is highly susceptible to environmental changes, indicating that climate change and other human-driven impacts may affect their important role in coral reefs, with negative repercussions for the health of the whole reef ecosystem.
Why this is important for us all
These findings are remarkable, because they may explain how coral reef ecosystems are able to thrive in very nutrient poor tropical waters. By helping photosynthetic organisms to grow on coral reefs, these bacteria enable these highly diverse and productive ecosystems to flourish. This, eventually, allows coral reefs to provide all the ecosystem goods and services like tourism and food that make them so important to humans.
Our impact on the natural environment is growing stronger every day, and the loss of coral reefs worldwide is increasing dramatically. As such, the authors hope that the data reported in their study will be useful for planning and evaluating the effects of management on coral reef ecosystems, helping to protect these important habitats and the goods and services that they provide.
Cardini et al. Budget of primary production and dinitrogen fixation in a highly seasonal Red Sea coral reef. Ecosystems (in press)
Prof. Dr. Christian Wild
University of Bremen
Faculty Biology / Chemistry
Phone. 0421 218 63367
Dr. Ulisse Cardini
University of Vienna
Department of Microbiology and Ecosystem Science
Division of Microbial Ecology
Phone: +43 677 61633148
Eberhard Scholz | idw - Informationsdienst Wissenschaft
Novel mechanisms of action discovered for the skin cancer medication Imiquimod
21.10.2016 | Technische Universität München
Second research flight into zero gravity
21.10.2016 | Universität Zürich
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences