Me puende decir sobre la contaminacion del oceano en inglés?

Marine pollutionoccurs when harmful, or potentially harmful, effects result from the entry into the ocean of chemicals, particles, industrial, agricultural and residentialwaste, noise, or the spread ofinvasiveorganism.

Eighty percent of marine pollution comes from land.

Air pollution is also a contributing factor by carrying off pesticides or dirt into the ocean.

Land and air pollution have proven to be harmful to marine life and its habitats.

The pollution often comes fromnonpoint sourcessuch as agriculturalrunoff, wind - blown debris and dust.

Nutrient pollution, a form ofwater pollution, refers to contamination by excessive inputs of nutrients.

It is a primary cause ofeutrophicationof surface waters, in which excess nutrients, usuallynitrogenorphosphorus, stimulate algae growth.

Many potentially toxic chemicals adhere to tiny particles which are then taken up byplanktonandbenthosanimals, most of which are either deposit orfilter feeders.

In this way, the toxins areconcentrated upwardwithin oceanfood chains.

Many particles combine chemically in a manner highly depletive ofoxygen, causingestuariesto becomeanoxic.

When pesticides are incorporated into themarine ecosystem, they quickly become absorbed into marinefood webs.

Once in the food webs, these pesticides can cause mutations, as well as diseases, which can be harmful to humans as well as the entire food web.

Toxicmetalscan also be introduced into marine food webs.

These can cause a change to tissue matter, biochemistry, behaviour, reproduction, and suppress growth in marine life.

Also, manyanimal feedshave a highfish meal.

In this way, marine toxins can be transferred to land animals, and appear later in meat and dairy products.