Are mermaids real? - NOAA's National Ocean Service
2024年6月16日 · Mermaids — those half-human, half-fish sirens of the sea — are legendary sea creatures chronicled in maritime cultures since time immemorial. The ancient Greek epic poet Homer wrote of them in The Odyssey.
Why does the ocean have waves? - NOAA's National Ocean Service
2024年6月16日 · Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest.
What is a Portuguese Man o’ War? - NOAA's National Ocean Service
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.
What species live in and around coral reefs? - NOAA's National …
2024年6月16日 · Hidden beneath the ocean waters, coral reefs teem with life. Fish, corals, lobsters, clams, seahorses, sponges, and sea turtles are only a few of the thousands of creatures that rely on reefs for their survival.
Ocean Facts - NOAA's National Ocean Service
The National Ocean Service (NOS) translates science, tools, and services into action, to address threats to coastal areas such as climate change, population growth, port congestion, and contaminants in the environment, all working towards healthy coasts and healthy economies.
What is Ocean Acidification? - NOAA's National Ocean Service
2024年6月16日 · Ocean acidification refers to a reduction in the pH of the ocean over an extended period time, caused primarily by uptake of carbon dioxide (CO2) from the atmosphere.
What is a sea lamprey? - NOAA's National Ocean Service
2024年6月16日 · The sea lamprey—an ancient Atlantic fish that wreaked havoc on the Great Lakes—may be America's first destructive invasive species. The rasping mouth of the sea lamprey, an infamous Great Lakes invader. Image credit: …
Diving Deeper: The Intracoastal Waterway - NOAA's National …
Are you familiar with the Intracoastal Waterway? This route extends approximately 3,000 miles and is essentially two waterways along the Atlantic and Gulf coasts.
A Guide to Plastic in the Ocean - NOAA's National Ocean Service
Plastics are the most common form of marine debris. They can come from a variety of land and ocean-based sources; enter the water in many ways; and impact the ocean and Great Lakes. Once in the water, plastic debris never fully biodegrades.
What are El Nino and La Nina? - NOAA's National Ocean Service
El Nino and La Nina are complex weather patterns resulting from variations in ocean temperatures in the Equatorial Pacific.