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The Man o’ War is a species of siphonophore, a group of animals that are closely related to jellyfish. The Portuguese man o’ war is recognized by its balloon-like float, which may be blue, violet, or pink and rises up to six inches above the water line.
In the U.S., where over half of us live along the coast and more than 78 percent of our overseas trade by volume comes and goes along our marine highways, the health of our coasts is intricately connected to the health of our nation's economy. The National Ocean Service (NOS) translates science, tools, and services into action, to address threats to coastal areas such as climate change ...
About 97 percent of Earth's water is in the ocean. Official websites use .gov. A .gov website belongs to an official government organization in the United States.
At 6,705 square miles, the 2024 hypoxic zone in the Gulf of Mexico is the 12th largest ever measured in the 38-year record, measured from July 21 to July 26, 2024.
The chambered or pearly nautilus ( Nautilus pomilius ) is a type of cephalopod—a distant cousin to squids, octopi, and cuttlefish. Unlike its color-changing cousins, though, the soft-bodied nautilus lives inside its hard external shell. The shell itself has many closed interior chambers or “compartments.”
The light emitted by a bioluminescent organism is produced by energy released from chemical reactions occurring inside (or ejected by) the organism.
Thermohaline circulation begins in the Earth's polar regions. When ocean water in these areas gets very cold, sea ice forms. The surrounding seawater gets saltier, increases in density and sinks.
Lidar instruments shoot millions of laser pulses per second, which bounce off a surface or object to measure distances and directions to the object. Using the known speed of light, we can figure out how far away any object is by measuring how long it took for the laser to leave our instrument, hit the object, and bounce back to the instrument.
Coral Bleaching. Have you ever wondered how a coral becomes bleached? Healthy Coral: Coral and algae depend on each other to survive. Corals have a symbiotic relationship with microscopic algae called zooxanthellae that live in their tissues.
What are your basic job duties? I assemble, test, and maintain oceanographic and meteorological observation systems for CO-OPS. I do routine maintenance and software upgrades, and I calibrate, configure, and test hydrological and meteorological sensors.I also troubleshoot faulty observatories remotely and notify our field techs when a site visit is needed to resolve an issue; then I recommend ...