Although sharks are more common in warmer waters, there are still a few species in the Arctic Ocean. Just like whales, the only predator of sharks are humans. Being at the top of the Arctic food chain, sharks prey on whales, polar bears, seals, and fish. They are one of the most carnivorous organisms in the sea.
Whales are the largest organisms in the Arctic Ocean with only sharks and humans as their predators. Even though they are towards the top of the food chain, whales will only feed on krill and small fish instead of the larger animals below them.
Polar bears are organisms of the Arctic food chain that live on land but consume some of their food from the water. The aquatic organisms they eat often are fish; however, they also feed on seals and sea birds. These animals are the prey of sharks,
Some Arctic seals spend a portion of their time in water while others spend their lives on the icy land, which is why they are easily consumed. Seals are the prey of polar bears and sharks. Also, seals eat krill and small crustaceans.
Arctic Cod Fish
There are not many kinds of fish in the Arctic Ocean due to the extreme conditions. The fish that survive have antifreeze compounds in their blood, so they can live their whole lives in polar biomes. Fish are the prey of seals, polar bears, whales, large crustaceans, and larger fish. Although they are towards the bottom of the food chain, fish are the predators of krill, smaller fish, crustaceans, and ice algae.
Being at the bottom of the food chain, ice algae is consumed by copepods, a species of zooplankton. Ice algae grows underneath ice sheets. This form of algae creates detritus when it is old and mixes with dead organisms. Detritus is a source of nutrition for many of the organisms that live in the Arctic.
Arctic Animals in Danger
Food chains are fascinating because of how perfectly they work; however, any issue such as change in climate or endangerment of an organism can harm the chain. Unfortunately in the Arctic, both those problems are occurring. Due to global warming, temperatures are inclining in the North Pole, causing a lot of the ice and glaciers to heat and melt. Since the ice is disappearing, polar bears and seals are drowning in the water, causing a gap in the food chain. If there is an absence of organisms in the food chain, other organisms may become extinct and others may multiply excessively.
Because of the advance in technology and electricity, global warming has become a serious issue. It is amazing to see the statists of how the global surface temperature increased in a century.
Some people think that they cannot do anything about global warming, but there are ways to help. This link suggest five ways to prevent global warming in order to help these ecosystems thrive: