The National Park Service (NPS) has been fighting an invasion for more than 20 years: the invasion of Yellowstone Lake by lake trout. This invasive species has been hurting the lake's ecosystem, threatening the survival of native species such as Yellowstone cutthroat trout and the overall health of the lake . As lake trout outcompete the easier-to-catch cutthroat trout, bird populations surrounding the lake diminish, and even grizzly bears in the area resort to other food supplies.
The lake trout is a wily predator, sometimes consuming young cutthroat trout. However, it's also a cunning prey animal; it's difficult for other predators to catch lake trout, in large part because they spend most of their lives in deep, murky waters.Read More
Scientists have been aware of an anoxic “dead zone” in the Gulf of Oman for some time, but recent research from the University of East Anglia (UEA) has confirmed that the situation is more advanced—and a more serious environmental disaster—than previously thought. Now, thanks to the ongoing dives of Seagliders, underwater robots armed with sensors, the UEA team has much more data and detail about the anoxic region and its spread.
Many regions of the Gulf were previously inaccessible to researchers due to geopolitical tensions and safety concerns arising from problems like piracy. However, for Seagliders, the water is fine. Around the size of a human, the gliders can stay on task in the ocean for months at a time, reaching depths of up to 1,000 meters.Read More
A recent water quality report focusing on the Manhasset Bay watershed in New York reveals both success and some room to improve—and above all, the need to remain vigilant and stay the course with regard to water quality protection measures. Sarah Deonarine, the Manhasset Bay Protection Committee's (MBPC) Executive Director, explained the nuances of the report to EM .
“The summer water quality monitoring has been going on since at least the mid-90s,” details Deonarine. “It's important to conduct this type of monitoring to, among other things: 1) see what the problems are; 2) figure out how environmental factors such as rain affect those problems (i.e.Read More