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Which marine ecosystem supports the most life?

estuaries

Which marine ecosystem is independent of sunlight?

G – There are deep ocean ecosystems that are independent of energy from sunlight and photosynthetic organisms. Hydrothermal vents, submarine hot springs, and methane cold seeps rely only on chemical energy and chemosynthetic organisms to support life.

What is the most diverse aquatic ecosystem?

coral reefs

How is the marine ecosystem divided?

Oceans. The largest of all the ecosystems, oceans are very large bodies of water that dominate the Earth’s surface. Like ponds and lakes, the ocean regions are separated into separate zones: intertidal, pelagic, abyssal, and benthic. All four zones have a great diversity of species.

How many types of marine ecosystems are there?

Two-thirds of the total surface area of the planet is covered by marine water. The marine ecosystems can broadly be classified into two main categories constituting 5 major marine ecosystems. Water/Pelagic environment consists of two major marine ecosystems, Neritic and Oceanic zones.

What are the characteristics of a marine ecosystem?

Marine ecosystems are characterized by factors such as availability of light, food and nutrients. Other factors that affect marine ecosystems include water temperature, depth and salinity, as well as local topography. Changes in these conditions can change the composition of species that make up the marine community.

Which two threats to marine ecosystems are the most serious?

Here are five of the biggest challenges our oceans face, and what we can do to solve them.

  1. Climate change. Climate change arguably presents the greatest threat to ocean health.
  2. Plastic pollution.
  3. Sustainable seafood.
  4. Marine protected areas.
  5. Fisheries subsidies.

What problems are marine animals facing today?

But, before we get too ahead of ourselves, it is important to address the issues that are facing marine mammals.

  • Ship Strikes.
  • Acoustic Pollution.
  • Open Net Fishing.
  • Oil Spills.
  • Agricultural Runoff.
  • Commercial Hunting.
  • Climate Change.
  • 8. Entertainment and Captivity.

What is the biggest killer of marine life?

Deadliest plastics: bags and packaging biggest marine life killers, study finds. Plastic bags and flexible packaging are the deadliest plastic items in the ocean, killing wildlife including whales, dolphins, turtles and seabirds around the globe, according to a review of hundreds of scientific articles.

What would happen if all the fish disappeared?

The ocean will no longer be able to perform many of its essential functions, leading to a lower quality of life. People will starve as they lose one of their main food sources. The effects of a world without fish in the sea would be felt by everyone.