Two primary sources of oxygen for the upper waters of the ocean are photosynthesis by phytoplankton and the exchange of gases with the atmosphere. Phytoplankton, which are microscopic marine plants, produce oxygen during photosynthesis, significantly contributing to the ocean’s oxygen levels. Additionally, oxygen from the atmosphere dissolves into the ocean’s surface waters, particularly in areas with strong winds or waves that enhance gas exchange. Together, these processes sustain the oxygen levels necessary for marine life.
Narwhals live in the upper, sunlit zone of the Arctic and North Atlantic Ocean waters. It ventures down into the middle zone and even the topmost part of the lower zone. But these are merely forays for food.
Liberty Island is located in the Upper New York Bay. It is surrounded by the waters of Jersey City, Hudson County and New Jersey.
The Man-of-war, or Portuguese man o' war (Physalia physalis), primarily inhabits the open ocean, particularly in warm waters of the Atlantic, Pacific, and Indian Oceans. It is often found in the surface zone of the ocean, typically in the upper layers where sunlight penetrates. These creatures are frequently seen drifting in coastal waters and can be found in areas where ocean currents bring them closer to shore.
The motto of Upper Chattahoochee Riverkeeper is 'Keeping Watch Over Our Waters'.
Plankton
Tuna primarily inhabit the pelagic zone of the ocean, which is the open water column away from the coast and above the ocean floor. This zone is characterized by its depth and distance from land, providing the ideal environment for tuna to swim and hunt for prey. Depending on the species, tuna can be found at various depths, but they generally prefer warmer waters in the upper layers of the ocean.
what organisms inhabit the upper zone of the open ocean and why are they so impotant
Organisms that inhabit the upper zone of the open ocean include phytoplankton, zooplankton, fish, and sea birds. They are important because they form the base of the marine food web, supporting higher trophic levels such as larger fish, marine mammals, and seabirds. They also play a key role in carbon cycling and oxygen production through photosynthesis.
A depth of 1 kilometer (1,000 meters) typically refers to the upper layers of the ocean or certain geological formations, such as sediment layers. At this depth, the average temperature is around 3.5 degrees Celsius, which is common in deep ocean environments where sunlight does not penetrate. This temperature is relatively stable, as deep ocean waters are insulated from the warmer surface waters. Thus, the combination of depth and temperature reflects the characteristics of deep-sea ecosystems.
Ozone is in upper. It is because it is formed there.
Ozone occurs in upper layers. It finds suitable conditions to sustain there.
Upper layer atmospheric ozone is formed by UV rays. These Uv rays break down oxygen into nascent oxygen which reacts with oxygen to form ozone.