Why is it that ocean is a biodiversity?

The ocean is one of the main repositories of the world’s biodiversity. It constitutes over 90 per cent of the habitable space on the planet and contains some 250,000 known species, with many more remaining to be discovered—at least two thirds of the world’s marine species are still unidentified.

How is the ocean biodiversity?

The world’s oceans contain somewhere between 500,000 and 10 million marine species. bacteria, other microbes and viruses. Much of the biodiversity in the ocean, particularly in the deep sea and in the microbial ocean, is unknown, and up to 2,000 new species are described per year.

What does biodiversity mean in the ocean?

The ocean is amazingly diverse. Life in the ocean ranges from the smallest microscopic bacteria and viruses to the largest animal ever to have lived on Earth—the blue whale. Biodiversity refers to variation among living things within an ecosystem. This includes variation in plants, animals, fungi, and micro organisms.

Why are oceans important to biodiversity?

The ocean is home to millions of species. The health of the oceans is strongly dependent upon this marine biodiversity. Life in the ocean is an essential component of climate regulation. … Their feeding, development and breeding, as well as the relationships between species are affected.

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How much of the ocean is biodiversity?

Oceans are seriously under-protected: just over 1% of the ocean surface is designated as protected areas, compared to nearly 15% of protected-area coverage on land. Oceans cover 70% of our planet and represent over 95% of the biosphere.

Does the ocean have biodiversity?

The ocean is one of the main repositories of the world’s biodiversity. It constitutes over 90 per cent of the habitable space on the planet and contains some 250,000 known species, with many more remaining to be discovered—at least two thirds of the world’s marine species are still unidentified.

What is diversity and biodiversity?

The term biodiversity (from “biological diversity”) refers to the variety of life on Earth at all its levels, from genes to ecosystems, and can encompass the evolutionary, ecological, and cultural processes that sustain life.

Why do oceans have low biodiversity?

The salinity in these habitats fluctuates from freshwater to saltwater, which can be problematic for most organisms. Therefore, the biodiversity in these habitats is fairly low for organisms that live in these habitats exclusively.

What part of the ocean has the most biodiversity?

Coral reefs are believed by many to have the highest biodiversity of any ecosystem on the planet—even more than a tropical rainforest. Occupying less than one percent of the ocean floor, coral reefs are home to more than 25% of all marine life.

Which ocean has the most biodiversity?

There are 400 known fish species living in Arctic seas and adjacent waters, most living on or near the bottom. So, based on global fisheries and the overall biodiversity of coral reef ecosystems, the Pacific Ocean wins for most marine life.

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Why are oceans marine relevant?

Oceans are an important source of food. They host 80 percent of the planet’s biodiversity, and are the largest ecosystem on Earth. … Only ten species provide about 30 percent of marine capture fisheries and ten species provide about 50 percent of aquaculture production. 3.

How does ocean pollution affect biodiversity?

Ocean pollution comes in many forms, but the largest factor affecting the oceans is plastic. … Plastic kills fish, birds, marine mammals and sea turtles, destroys habitats and even affects animals’ mating rituals, which can have devastating consequences and can wipe out entire species.

Why is biodiversity important?

Biodiversity is essential for the processes that support all life on Earth, including humans. Without a wide range of animals, plants and microorganisms, we cannot have the healthy ecosystems that we rely on to provide us with the air we breathe and the food we eat. And people also value nature of itself.

How do think that oceans are the home to the greatest biodiversity?

The ocean is home to a phenomenal diversity of marine organisms. They have evolved to inhabit warm waters near the equator and the icy waters of the Earth’s poles. Marine life takes advantage of the enormous volume the ocean comprises: from diatoms living near the sunny surface, to octopods living in the dark deep sea.

How do coral reefs support biodiversity?

Healthy coral reefs provide: Habitat, feeding, spawning, and nursery grounds for over 1 million aquatic species, including commercially harvested fish species. Food for people living near coral reefs, especially on small islands.

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