Why are dissolved oxygen concentrations highest in the epipelagic zone?
The exact definitions and depths are subjective, but the following information is generally agreed upon. The epipelagic is also known as the surface layer or photic zone (where light penetrates). This is the layer with the highest levels of dissolved oxygen due to wave action and photosynthesis.
What are the 2 sources of oxygen in the ocean?
The ocean produces oxygen through the plants (phytoplankton, kelp, and algal plankton) that live in it. These plants produce oxygen as a byproduct of photosynthesis, a process which converts carbon dioxide and sunlight into sugars the organism can use for energy.
What is unique about the epipelagic zone?
The Epipelagic zone is the uppermost layer of the ocean; it is located between the surface and 600 feet in depth. It is in this thin layer that all photosynthesis takes place. The epipelagic zone only represents 2-3% of the entire ocean, beyond this, light is too dim for photosynthesis to occur.
What producers are in the epipelagic zone?
Examples of primary producers in the epipelagic zone are red algae, green algae, brown algae, phytoplankton, seagrasses, and mangroves. Examples of animals found in the epipelagic zone include most fish (e.g., sharks and reef fishes), jellyfish, sea turtles, corals, seals, whales, dolphins, and zooplankton.
What are the source of oxygen?
Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean. The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize.
Where does dissolved oxygen come from?
Dissolved oxygen is supplied to a lake from two main sources: plant and algae photosynthesis and diffusion from the atmosphere. In photosynthesis, plants use the sun's energy to convert carbon dioxide and water into oxygen and cellular material (growth).
What is Epipelagic zone?
1. The epipelagic zone (or upper open ocean) is the part of the ocean where there is enough sunlight for algae to utilize photosynthesis (the process by which organisms use sunlight to convert carbon dioxide into food). Generally speaking, this zone reaches from the sea surface down to approximately 200 m (650 feet).
What happens in the epipelagic zone?
The epipelagic zone (or upper open ocean) is the part of the ocean where there is enough sunlight for algae to utilize photosynthesis (the process by which organisms use sunlight to convert carbon dioxide into food). Generally speaking, this zone reaches from the sea surface down to approximately 200 m (650 feet).
What is the epipelagic zone like?
Within the well-lit euphotic zone is the epipelagic zone, which refers to the ocean surface waters that typically extend 50 to 100 meters in depth, but may be as deep as 200 meters. This zone is relatively warm because of heating from the sun and constant mixing by wind and currents.
What do you find in the epipelagic zone?
Generally speaking, this zone reaches from the sea surface down to approximately 200 m (650 feet). The epipelagic is home to all sorts of iconic animals, like whales and dolphins, billfishes, tunas, jellyfishes, sharks, and many other groups.
Is phytoplankton in epipelagic zone?
It is in the epipelagic zone, from the surface to 650 ft (200 m) (corresponding to the euphotic zone), that phytoplankton (algae and microscopic plants) live. They are the primary producers of the ocean, the lowest level on the oceanic food web.
What is the main source of oxygen gas to the atmosphere?
Photosynthesis by green plants is source of oxygen gas in air.
What is the major source of free oxygen in the atmosphere?
photosynthetic chemical reactions The oxygen that we currently find in the air has two main sources. The first, and major, source is that oxygen is liberated as a by-product of photosynthetic chemical reactions. The second source occurs in the atmosphere itself when water molecules are split apart after being struck with ultraviolet radiation.
Which is the main source of dissolved oxygen in the ocean?
Algae and underwater grasses release oxygen during photosynthesis. Water flows into the Bay from streams, rivers and the ocean. Ocean waters generally have more oxygen.
How does oxygen get into the water?
Oxygen enters water by direct absorption from the atmosphere, which is enhanced by turbulence (see Figure 1). Water also absorbs oxygen released by aquatic plants during photosynthesis.
What lives in the epipelagic zone?
The epipelagic is home to all sorts of iconic animals, like whales and dolphins, billfishes, tunas, jellyfishes, sharks, and many other groups.
What are some abiotic factors in the epipelagic zone?
These include things like temperature, rainfall, soil quality, and altitude. So, in the pelagic zone of the ocean, some biotic factors might be: Marine life (fish, sharks, etc.)…Some abiotic factors might be:
- The oxygen content in the water.
- The pressure at that depth.
- The nutrients present in the water.
Nov 20, 2017
What is the epipelagic zone also known as?
Epipelagic Zone. This surface layer is also called the sunlight zone and extends from the surface to 200 meters (660 feet). It is in this zone that most of the visible light exists.
Why do phytoplankton live in epipelagic zone?
Why? Because Phytoplankton are at the bottom of the food chain and Zooplankton feed on them. There are also deep water organisms that live and thrive below the photic zone therefore not directly dependent upon photosynthesis. They consist of bacteria that thrive on CO2 dissolved in the water.
What is the epipelagic zone called?
the sunlight zone Epipelagic Zone – The surface layer of the ocean is known as the epipelagic zone and extends from the surface to 200 meters (656 feet). It is also known as the sunlight zone because this is where most of the visible light exists.
What are the sources of oxygen in the atmosphere explain with the help of oxygen cycle in nature?
Production of Oxygen During photosynthesis, plants use sunlight, water, carbon dioxide to create energy and oxygen gas is liberated as a by-product of this process. Sunlight: Sunlight also produces oxygen. Some oxygen gas is produced when the sunlight reacts with water vapour in the atmosphere.
Where did the oxygen in our atmosphere come from quizlet?
What produced the most of the oxygen in the earth's atmosphere? Most of this oxygen comes from tiny ocean plants – called phytoplankton – that live near the water's surface and drift with the currents. Like all plants, they photosynthesize – that is, they use sunlight and carbon dioxide to make food.
Where is the main source of oxygen?
the ocean Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean. The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize.
What is a source of oxygen?
Oxygen Supply Half of the world's oxygen is produced via phytoplankton photosynthesis. The other half is produced via photosynthesis on land by trees, shrubs, grasses, and other plants. As green plants die and fall to the ground or sink to the ocean floor, a small fraction of their organic carbon is buried.
What are the 3 sources of dissolved oxygen?
Oxygen can get into the water in several ways:
- Oxygen from the atmosphere dissolves and mixes into the water's surface.
- Algae and underwater grasses release oxygen during photosynthesis.
- Water flows into the Bay from streams, rivers and the ocean. Ocean waters generally have more oxygen.
Where does oxygen come from?
Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean. The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize.
Is oxygen biotic or abiotic?
abiotic factor Like water, oxygen (O2) is another important abiotic factor for many living organisms.
What are the biotic factors of epipelagic zone?
Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature.
What is the pressure in the epipelagic zone?
Answer and Explanation: The pressure in the epipelagic zone ranges from one atmosphere at the surface of the ocean to approximately 23 atmospheres at the lower limit of the…
What plants live in the epipelagic zone?
Epipelagic Zone (Sunlight) Microscopic plants called phytoplanktons are present in this zone. Sunlight penetrates this zone which facilitates the process of photosynthesis. Supported Plant Species: Seaweed or free-floating algae, red algae, green algae, brown algae, phytoplankton, angiosperms, mangroves, seagrass.