New findings in the role fish play in balancing coral, algae
September 17, 2021
When people think of coral reefs, images of beautiful colors and structures come to mind. But beyond aesthetic pleasure, coral reefs provide numerous benefits, ranging from food security and coastline protection to their role in coastal traditions and cultures. Although reefs cover less than 1% of the ocean floor, they support about 25% of marine life and earn their nickname: the rainforests of the sea.
A major challenge to reefs today is whether corals can persist under changing climate. One way that climate affects corals is by stimulating the overgrowth of algae that can smother the reef, making life tough for new corals to survive.
To better understand the balance between coral and algae, postdoc Shawna Foo and Global Futures Scientist Greg Asner at Arizona State University’s Center for Global Discovery and Conservation Science explored the role of herbivorous fish in keeping check on one of the main antagonists in coral-algae fight for reef space, known as “turf algae.” Their findings were published on Aug. 9 in Coral Reefs, the Journal of the International Coral Reef Society.
Read more on ASU News. The abstract follows.


Arizona State University alongside atlas founding partners at Vulcan Inc., National Geographic, Planet and the University of Queensland presented to the world a complete projection of the planet's coral ecosystems.
Food, nature and people are the three essential elements of our food system. When these elements are in balance, our food system provides nutritious food and livelihoods and supports natural systems like biodiversity, nutrient and water cycles and a stable climate. Unfortunately, our food system is out of balance, threatening people and communities around the world. To reverse this dangerous trend, we need to implement solutions at scale, quickly.
Join the Center for Science and the Imagination (CSI), the Journal of Science Policy & Governance (JSPG) and the UK Science and Innovation Network for a workshop that brings together innovative thinkers in climate science and provides opportunities to reimagine positive climate futures. This event will feature early career researchers published in a special issue of JSPG on climate-change solutions, and CSI's Climate Imagination Fellows, who are working on stories that inspire positive visions of climate action and resilience.
To further the implementation of Women, Peace and Security (WPS) that advances a Free and Open Indo-Pacific, Pacific Forum International, in partnership with USINDOPACOM Office of WPS, is organizing the conference Advancing Women, Peace & Security in the Indo-Pacific. Topics in this conference include cultivating a culture of allyship in security, building bridges between CSOs and local government, WPS in the defense sector, gender and preventing/countering violent extremism, and gender and climate security in the Indo-Pacific.
The future of the office has become an open question after the coronavirus lockdown forced billions of people to work from home. Will office workers return to their cubicles with refrigerators when the pandemic ends? Or will employees want to hold on to their newfound freedom and flexibility, while noting the lower costs of no-show?
Organic food once was viewed as a niche category, but today it’s a routine choice for millions of Americans, with over half of organic sales in conventional grocery store chains, club stores and supercenters.
An Arizona State University assistant professor says laws regarding natural resources on public land are antiquated and prevent voluntary conservation.
The Global Futures Office of Research Services (GFORS) is a virtual organization of the set of services required by members of the Julie Ann Wrigley Global Futures Laboratory to plan, apply for and perform externally sponsored research. GFORS organizes and administers these services through a single web portal.
Despite years of declaring that conversion of high-voltage, long-distance electrical transmission lines to underground installation was cost prohibitive, Pacific Gas & Electric (PG&E) has announced plans to spend $20 billion over 10 years to bury 10,000 miles of power lines in wildfire-prone areas of California.
A new paper published by a team from the Rob and Melani Walton Sustainability Solutions Service that includes College of Global Futures associate professor Rimjhim Aggarwal examines the culture and economy of waste pickers. In the paper, published Aug. 10 in Sustainability, the authors demonstrate that waste pickers, typically part of extreme poverty communities based on or around landfills, have the potential to act as environmental stewards by mitigating the effects of waste, contributing to the resilience of urban systems, reducing greenhouse gas emissions through recovery of materials from waste streams and saving energy and preserving natural resources by enabling recycling and reuse.
Dave White, deputy director of Arizona State University’s Global Institute of Sustainability and Innovation and professor in the School of Community Resources and Development, has been tapped by the White House Office of Science and Technology Policy to represent the Southwest region as chapter lead author for the Fifth U.S. National Climate Assessment. White previously served as co-author for the complex systems chapter for the Fourth U.S. National Climate Assessment, published in 2018.
The Global Institute of Sustainability and Innovation's deputy director, Dave White, was featured in the Washington Post on Aug. 18 with his opinion piece on the US Bureau of Reclaimation's recent report on a record low water level for both the Colorado River and Lake Mead. In his opinion, White asserts that "nothing less than a water 'moonshot'" will be the only way forward to ensure that the needs of industry, agriculture and residents will be met.
The first working group’s contribution to the 6th Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), “The Physical Science Basis” released on August 9, comes at a moment when our planet is experiencing multiple crises, some of which directly highlight the key findings of the report. To avoid additional, more extreme events, we no longer have decades to make choices to change what we can and should do to mitigate climate change – we must act now and act more boldly than previously envisioned in any of the current commitments.
Flooding affects more people than any other environmental disaster in the world. Between 2000 and 2019 alone, an estimated $651 billion in flood damages occurred globally.
We are looking to identify post-docs who are working with faculty who are members of the scientists and scholars network. If you have a post-doc working with you, please
NASA has funded an Arizona State University project to use commercial CubeSat data to determine the presence of water in arid and semiarid rivers in California and Arizona. CubeSats are small satellites, typically the size of a shoebox, that can orbit the Earth and even travel in deep space.

Erinanne Saffell, a senior lecturer in Arizona State University’s School of Geographical Sciences and Urban Planning, remembers experiencing severe floods growing up in Arizona in the 1970s.