As the world develops and the human population increases, more and more pollution is dumped into the oceans, causing major problems for marine life and ecosystems . The main causes of marine pollution are diffuse pollutants, marine litter, toxic ocean pollutants and the discharge of sewage into the oceans. From heavy metal poisoning, including lead and mercury, that kill predators such as sharks and whales, to waste trapped in the digestive tracts of marine animals, this essay focuses on how human interference causes horrible problems for marine life, but also on how to fix 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 you do during the week or using environmentally friendly detergents and fertilizers, this problem can be reduced.Pollution marine: causesAquatic biodiversityBiological diversity is the variability among living things. organisms from many different sources, including marine and aquatic ecosystems, and diversity within species and ecosystems. (Gray 1996) Some of the main components of marine biodiversity include genetic diversity, species diversity, functional diversity, community and ecosystem diversity, and habitat diversity. There are many quantities of living creatures and plants beneath the surface of the water that have not been identified. 90% of fish live on coral reefs, although only 1%, or 17,650, of marine life forms and species have been properly identified and studied. (Miller & Spoolman 2012). Toxic Ocean PollutantsToxic ocean pollutants are one of the leading causes of marine pollution. Heavy metals such as ...... middle of paper ......, Biological Institute, University of Oslo, Norway, accessed April 28, 2015, http://www.avesmarinhas.com.br/20%20 -<%20marine%20biodiversity%20%20patterns,%20threats%20and.pdf>Harrison, RM 2001, Pollution: causes, effects and control, 4th ed., The Royal Society of Chemistry, Cambridge, United Kingdom. Marine pollution: 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 ed., Brooke/ Cole, Cengage Learning, USA. Nixon, SW 1995, Coastal Marine Eutrophication: a Definition, Social Causes, and Future Concerns, Graduate School of Oceanography, University of Rhode Island, Narragansett, USA, accessed April 28 2015,