Where is most marine life found in the ocean?

coastal habitats
Most marine life is found in coastal habitats, even though the shelf area occupies only seven percent of the total ocean area. Open ocean habitats are found in the deep ocean beyond the edge of the continental shelf. Alternatively, marine habitats can be divided into pelagic and demersal zones.

Where do most marine organisms live?

Most marine life is found in coastal habitats, even though the shelf area occupies only seven percent of the total ocean area. Open ocean habitats are found in the deep ocean beyond the edge of the continental shelf. Alternatively, marine habitats can be divided into pelagic and demersal zones.

What zone of the ocean does most marine life live in and why?

Of the open ocean zones, most life is found in the epipelagic zone. This is where light is able to penetrate the ocean, allowing for photosynthetic processes to take place. It extends roughly 200m or 650 feet below the surface. This zone may also be known as the euphoric zone, the sunlight zone, or the photic zone.

What percent of marine life lives in coastal oceans?

Coastlines only make up about 8 percent of the Earth’s land, but they have about 26 percent of all biological diversity. This world of seabirds, clams, crabs, starfish, anemones, fish, kelp, and marine mammals, among many others, is a beautiful place, with many different types of natural communities.

Where do most marine organisms live quizlet?

Most marine species are found in the: benthic environment.

Where is marine life concentrated?

Sea life is concentrated in the sunlit waters near the surface, but most organic matter is far below, in deep waters and on the sea floor.

Where do 90\% of all organisms live?

ocean
Altogether the ocean occupies 71 percent of the world surface, averaging nearly 3.7 kilometres (2.3 mi) in depth. By volume, the ocean provides about 90 percent of the living space on the planet.

In what zone does approximately 90\% of all ocean life live?

Ninety percent of marine life lives in the photic zone, which is approximately two hundred meters deep. This includes phytoplankton (plants), including dinoflagellates, diatoms, cyanobacteria, coccolithophorids, and cryptomonads. It also includes zooplankton, the consumers in the photic zone.

How many marine animals are in the ocean?

According to the World Register of Marine Species, WoRMS, the total number of marine species known to us is about 240,000 species (2021 census).

Why do all marine algae live near the ocean surface?

Most marine organisms live within the sunlit surface waters. Strong sunlight supports photosynthesis by marine algae. All marine algae live near the surface because they need sunlight to survive. Most marine animals also live near the surface because this is where they can find food.

Why do all marine algae live near the ocean surface quizlet?

What kingdom does it belong to? Judge the following sentence according to the criteria given below: All marine algae must live near the ocean surface BECAUSE they need sunlight to survive.

What are the zones of marine habitat?

Three major zones are recognized: supralittoral (covered only during highest spring tides), littoral or intertidal (covered regularly between high and low tides), and sublittoral (never exposed even during the lowest low tides).

What type of marine life is found in the ocean?

Killer whales (orca) are marine apex predators that hunt many large species. Oceans also contain microscopic marine life, such as bacteria and phytoplankton. Marine life, or sea life or ocean life, is the plants, animals and other organisms that live in the salt water of the sea or ocean, or the brackish water of coastal estuaries.

What is the importance of marine life to humans?

Marine organisms produce much of the oxygen we breathe. Shorelines are in part shaped and protected by marine life, and some marine organisms even help create new land. Most life forms evolved initially in marine habitats. Oceans provide about 99 percent of the living space on the planet.

What is the census of marine life?

One recent effort— the Census of Marine Life —was an international project spanning 10 years that recorded the diversity, distribution, and abundance of life in the ocean. More than 2,700 scientists from 80 nations contributed to the Census.

How many people in the world live near the ocean?

Over one-third of the total human population, nearly 2.4 billion people, lives within 100 km (60 miles) of an oceanic coast, a fact emphasized by the devastating tsunami in the Indian Ocean in 2004.