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Discarded plastic bags, six-pack rings, cigarette butts and other forms of plastic waste which finish up in the ocean present dangers to wildlife and fisheries. [52] Aquatic life can be threatened through entanglement, suffocation, and ingestion. [53] [54] [55] Fishing nets, usually made of plastic, can be left or lost in the ocean by fishermen.
Human activities affect marine life and marine habitats through overfishing, habitat loss, the introduction of invasive species, ocean pollution, ocean acidification and ocean warming. These impact marine ecosystems and food webs and may result in consequences as yet unrecognised for the biodiversity and continuation of marine life forms.
A gyre is a circular ocean current formed by the Earth's wind patterns and the forces created by the rotation of the planet. [36] There are five main ocean gyres: the North and South Pacific Subtropical Gyres, the North and South Atlantic Subtropical Gyres, and the Indian Ocean Subtropical Gyre. There are significant garbage patches in each of ...
Stinging jellyfish, rays with their whip-like tails and sharks on the hunt are some ocean hazards that might typically worry beachgoers. Six people drowned in rip currents over a recent two-day ...
Furthermore, the ocean's function as a carbon dioxide sink, alterations in the atmosphere, ultraviolet light, ocean acidification, viral infections, the repercussions of dust storms transporting agents to distant reefs, pollutants, and algal blooms represent some of the factors exerting influence on coral reefs.
The problem of ocean plastic debris is ubiquitous. It is estimated that 1.5–4% of global plastics production ends up in the oceans every year, mainly as a result of poor waste management infrastructure and practices combined with irresponsible attitudes to the use and disposal of plastics.
With primary causes being warming ocean waters, ocean acidity, and pollution. [148] In 2008, a worldwide study estimated that 19% of the existing area of coral reefs had already been lost. [ 149 ] Only 46% of the world's reefs could be currently regarded as in good health [ 149 ] and about 60% of the world's reefs may be at risk due to ...
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