As the world develops and the human population grows, more and more pollution is discharged into the oceans, causing serious problems for marine life and ecosystems. The main causes of marine pollution involve non-point source pollutants, marine litter, toxic ocean pollutants and wastewater disposal in the oceans. From heavy metal poisoning, including lead and mercury, that kill predators like sharks and whales, to waste that gets trapped in the digestive tracts of marine animals, this essay focuses on how human interference causes terrible problems for marine life, but also on how to solve them. It will also explore people's normal activities, including farming, and how this can cause an imbalance in an ecosystem. Daily activities can cause a massive nutrient load on an ecosystem, but by reducing the amount of laundry done during the week or by using earth-friendly detergents and fertilizers, this problem can be reduced. Marine Pollution: Causes of Aquatic Biodiversity Biological diversity is the variability among living organisms from many different sources, including marine and aquatic ecosystems, and the diversity within species and ecosystems. (Gray 1996) Some of the major components of marine biodiversity include genetic diversity, species diversity, functional diversity, community and ecosystem diversity, and habitat diversity. There are numerous quantities of living creatures and plants beneath the surface of the water that have not been identified. 90% of fish live in coral reefs, although only 1% or 17,650 of the marine life forms and species have been adequately identified and studied. (Miller & Spoolman 2012). Toxic ocean pollutants One of the main causes of marine pollution is toxic ocean pollutants. Heavy metals as ...... middle of paper ......, Biological Institute, University of Oslo, Norway, viewed 28 April 2015, http://www.avesmarinhas.com.br/20%20 - <%20marine%20biodiversity%20%20patterns,%20threats%20and.pdf>Harrison, RM 2001, Pollution: causes, effects and control, 4th edn, The Royal Society of Chemistry, Cambridge, UK.Marine Polution: Causes and Consequences , 2003, EMCBTAP-ENVIS Newsletter, Department of Geology, University of Kerala, Kariavattom, accessed 27 April 2015, Miller, G & Spoolman, S 2012, Living in the Environment, 17th edition, Brooke/Cole, Cengage Learning, USA. Nixon, S.W. 1995, Coastal marine eutrophication: a definition, social causes, and future concerns, Graduate School of Oceanography, University of Rhode Island, Narragansett, USA, viewed 28 April 2015,