Sharks have been around for over 400 million years and are important for keeping the ocean healthy as they are the top predators. However, there are many threats to their survival. In this article, we will look at these problems and why sharks die.
Natural Causes
Like all living things, sharks die of natural causes. Different types of sharks have different lifespans, and things like predation, disease, and old age can lead to their death. For example, smaller sharks such as the blacktip reef shark live around 10 to 15 years, while larger sharks like the great white can live up to 70 years.
Human Impact
Sadly, humans have had a significant effect on shark populations all around the world, putting many species at risk of disappearing forever. Overfishing is one of the most significant threats to sharks. Many sharks are caught and killed for their fins, meat, and other body parts. This harmful practice, called shark finning, involves removing the shark’s fins and throwing the rest of its body back into the ocean, where it can’t move or protect itself. This unsustainable practice has led to a significant decrease in shark numbers.
Sharks are also unintentionally caught in fishing nets, lines, and traps, which is called bycatch. Many sharks die as a result of this, and it is a significant cause of shark death, killing thousands each year.
Pollution
Pollution is another reason why sharks die. As the top predators, they can absorb high levels of toxins and pollutants into their bodies. This can cause a range of health issues and weaken their immune system, making them more susceptible to disease.
Habitat Loss
Sharks are also losing their homes due to human activities like coastal development, pollution, and climate change. The ocean’s rising temperatures can cause coral reefs to disappear, which is crucial habitat for many shark species. Overfishing can also lead to fewer prey species, meaning sharks need to find new places to hunt.
Conclusion
Sharks are critical to keeping the ocean healthy. However, their population decline due to threats like overfishing, bycatch, pollution, and habitat loss is worrying. As individuals, we can help save sharks by choosing sustainable seafood options, reducing our use of single-use plastics, and supporting conservation efforts. By working together, we can ensure these magnificent creatures survive for generations to come.