Animals in sea the and why do they die?

Marine animals face numerous threats in the ocean that can lead to their death. Here are some of the major causes:

1. Overfishing: Overfishing is a significant problem that has led to the depletion of many marine species. Fishing practices, such as bottom trawling and drift nets, can result in bycatch, inadvertently capturing and killing marine animals that are not the target of the fishery. This can include species such as dolphins, whales, sea turtles, and sharks.

2. Pollution: Various forms of pollution pose significant risks to marine animals. Oil spills, plastic pollution, and sewage discharge can contaminate the water and harm marine life. Oil spills can coat the surface of the water, making it difficult for animals to breathe, while plastic pollution can be ingested by animals, causing internal injuries and blockages. Sewage discharge can introduce harmful bacteria and viruses, affecting marine animals' health.

3. Habitat Destruction: The destruction or degradation of marine habitats is another major threat to marine animals. Activities such as coastal development, dredging, and land reclamation reduce and fragment critical habitats, affecting species' ability to find food, reproduce, and survive. Many vital habitats, such as coral reefs and mangrove forests, are particularly vulnerable to human activities.

4. Climate Change: The impacts of climate change are profoundly affecting marine ecosystems. Rising ocean temperatures lead to coral bleaching, disrupt the delicate balance of ecosystems, and alter the distribution of marine species. Some species may struggle to adapt or find suitable habitats, leading to population declines. Additionally, ocean acidification caused by increased carbon dioxide absorption affects the ability of marine organisms to build shells and skeletons, making them more vulnerable to predators and disease.

5. Hunting and Poaching: Certain marine animals are hunted or poached for various purposes, such as food, traditional medicine, and the pet trade. This can lead to population declines and even endangerment of some species. For instance, sharks are often hunted for their fins, which are used in shark fin soup, while certain marine mammals like whales and dolphins are victims of illegal hunting for their meat and oil.

6. Disease: Marine animals are also susceptible to various diseases, some of which can be transmitted by human activities. Shipping and boating activities can introduce pathogens and diseases into marine environments, affecting local populations. Warmer ocean temperatures due to climate change can also contribute to the spread of diseases, as some pathogens thrive in warmer waters.

7. Noise Pollution: Marine animals rely on sound for communication, navigation, and hunting. Increasing noise pollution from human activities, such as ship traffic, seismic surveys, and military sonar, can disrupt these activities and cause stress, hearing damage, and behavioral changes in marine animals.

It is crucial to address these threats and take collective action to protect marine ecosystems and the diverse array of species they support. Implementing sustainable fishing practices, reducing pollution, conserving marine habitats, addressing climate change impacts, and combating hunting and poaching are vital steps towards ensuring the survival of marine animals and maintaining the health and balance of marine environments.