MIT researchers have used a sonar imaging system to observe a “colossal congregation of cod consume over 10 million capelin,” reports Mark Kaufman for Mashable. This event “was the largest predation event ever documented in the ocean,” writes Kaufman.
Using a sonar-based technique called Ocean Acoustic Waveguide Remote Sensing (OAWRS), researchers at MIT and elsewhere have tracked a swarm of cod off the coast of Norway eating millions of migrating capelin fish, reports Ed Cara for Gizmodo. Cara notes that in the future this technique could potentially allow “researchers and others to more easily monitor the health of these important fish and other life in marine ecosystems.”
Graduate student Jaida Elcock speaks with WBUR reporter Katie Cole to address misconceptions about sharks. "I think that honestly, one of the biggest dangers to humans is humans not understanding what different wildlife is and feeling free enough to touch it," says Elcock. "There's a lot of stuff in the ocean that's venomous or spiny or whatever the case may be. So, if you see it, that's awesome, you take a picture from a safe distance."
Researchers from MIT have developed “sustainable, offshore, hydrodynamic,” artificial reef structures capable of dissipating “more than 95% of an incoming wave’s total energy,” reports Nick Warburton for Materials World. The design “comprises vertical cylinders with four rudder-like slats attached to them, so that water can flow through the structure to generate 'swirling masses of water' or large eddies,” explains Warburton.
MIT scientists are working to fortify coastlines with “architected” reefs that can also provide habitats for fish and marine life, reports Ed Brown for TechBriefs. “We looked at the structure of these reefs and we found some similarities to what we had been doing in fluid mechanics. That led us to the idea of trying to make artificial reefs that we could architect and build in a very directed way,” says Prof. Michael Triantafyllou.
Popular Science reporter Andrew Paul writes that MIT researchers have developed a new long-range, low-power underwater communication system. Installing underwater communication networks “could help continuously measure a variety of oceanic datasets such as pressure, CO2, and temperature to refine climate change modeling,” writes Paul, “as well as analyze the efficacy of certain carbon capture technologies.”
Researchers at MIT have discovered that the ocean’s color has changed considerably in the last 20 years and is “another warning sign of human-driven climate change,” reports Maria Luisa Paul for The Washington Post. “These ecosystems have taken millions of years to evolve together and be in balance,” says Senior Research Scientist Stephanie Dutkiewicz. “Changes in such a short amount of time are not good because they put the whole ecosystem out of balance.”
MIT researchers have found that over the past two decades, the color of the world’s oceans has changed significantly, reports Talib Visram for Fast Company. The change “is likely due to human-induced climate change,” explains Visram. “The color shifts matter in that they signal changes in ecosystem balance, which have the power to disrupt fragile marine food webs.”
CNN reporter Jack Guy spotlights a new study co-authored by researchers at MIT, which shows that the ocean’s color has changed considerably over the last 20 years and human-caused climate change is likely responsible. “All changes are causing an imbalance in the natural organization of ecosystems,” says senior research scientist Stephanie Dutkiewicz. “Such imbalance will only get worse over time if our oceans keep heating.”
Researchers at MIT and elsewhere have discovered that the ocean’s hue has changed significantly over the last 20 years, reports Laura Baisas for Popular Science. “A shift in ocean color is an indication that ecosystems within the surface may also be changing,” writes Baisas. “While the team can’t point to exactly how marine ecosystems are changing to reflect the shift, they are quite sure that human-induced climate change is likely behind it.”
A new study led by a team including researchers at MIT has found that more than half of the world’s ocean has changed color in the last 20 years, reports Coco Liu for Bloomberg. “The color shift could be caused by changes in plankton communities that are critical to the marine food chain,” writes Liu. “And biodiversity isn’t the only thing at stake: The shift could also affect how much carbon dioxide the ocean takes up, since different types of plankton have different abilities to absorb it."
MIT researchers have developed a new two-step electrochemical process to remove carbon dioxide out of seawater, reports John Fialka for E&E News. The new approach “cuts energy costs and expensive membranes used to collect CO2 to the point where merchant ships that run on diesel power could collect enough CO2 to offset their emissions,” Fialka writes.
Prof. Fadel Adib speaks with CBC Radio about his lab’s work developing a wireless, battery-free underwater camera that runs on sound waves. "We want to be able to use them to monitor, for example, underwater currents, because these are highly related to what impacts the climate," says Adib. "Or even underwater corals, seeing how they are being impacted by climate change and how potentially intervention to mitigate climate change is helping them recover."
Prof. Nikta Fakhri and her colleagues have placed hundreds of starfish embryos into salt-water tanks where they arrange themselves into honeycomb-like patterns at the water’s surface, reports Karmela Padavic-Callaghan for New Scientist. “These structures, which had never been seen before, may form because of the embryos’ swimming style and body shape,” explains Padavic-Callaghan.