![]() Habitat loss Relationship between annual trend and current cumulative impacts for different marine ecosystems Ĭoastal ecosystems are being particularly damaged by humans. Overfishing of high trophic fish like tuna can result in them being replaced by low trophic organisms, like jellyfish It has been estimated only 13% of the ocean area remains as wilderness, mostly in open ocean areas rather than along the coast. According to the IPCC (2019), since 1950 "many marine species across various groups have undergone shifts in geographical range and seasonal activities in response to ocean warming, sea ice change and biogeochemical changes, such as oxygen loss, to their habitats." Additionally, another issue caused by humans which impacts marine life is marine plastic pollution, which poses a threat to marine life. Ocean acidification caused by rising levels of carbon dioxide leads to coral bleaching where the rates of calcification is lowered affecting coral growth. ![]() With coral producing materials such as carbonate rock and calcareous sediment, this creates a very unique and valuable ecosystem not only providing food/homes for marine creatures but also having many benefits for humans too. This results in the rise of ocean temperatures and ocean acidification which is harmful to many fish species and causes damage to habitats such as coral. ![]() For the past 50 years, more than 90 percent of global warming resulting from human activity has been absorbed into the ocean. ![]() Different activities carried out and caused by human beings such as global warming, ocean acidification, and pollution affect marine life and its habitats. The ocean can be described as the world's largest ecosystem and it is home for many species of marine life. These impact marine ecosystems and food webs and may result in consequences as yet unrecognised for the biodiversity and continuation of marine life forms. ![]() Human activities affect marine life and marine habitats through overfishing, habitat loss, the introduction of invasive species, ocean pollution, ocean acidification and ocean warming. ![]()
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