Ocean pollution has endangered many marine species including plants and animals and is causing alarming damage to the existing sea life too. This type of pollution is caused due to dumping of toxic materials formed by industrial wastes. If serious steps are not taken, more and more species would be wiped off from existence in the near future.
About 80 percent of the pollution is caused by undesirable human activities. Ore deposition and crude oil spills by the transporting vessels are quite hazardous to the living species that survive in the oceans. Waste water from the cruise ships causes 20% of the pollution. Plastic trash, floating pollutants and ship wrecks are already becoming dump yards under these vast water bodies and may cause huge water clogs underwater.
Fishes are the most affected marine species due to ocean pollution. In addition, the number of fishes decline further due to fishing activities. Since these are the main source of food for other sea animals and birds, depletion in the fish can be dangerous to the marine food chain in the future. For example, gulls and pelicans would find it difficult survive if the number of fishes in the oceans decline. Various marine wildlife like sea lions and sea otters have perished due to high ocean pollution levels.
Ocean pollution indirectly affect humans also as many people living along the coast depend on sea food for survival as well as livelihood. Hence, depletion of marine species would result in shortage of seafood. In addition, if humans consume fish living in polluted water, it can cause serious damage to the body and result in various health problems.