It may be defined as “the discharge of waste substances into the sea resulting in harm to living resources hazards to human health, hindrance to fishery and impairment of quality for use of sea water”. Source of marine pollution: The coastal zones contain rich heritage, coral reefs, wetlands, and sea grass beds. Effects of marine pollutants:
The presence of heavy metals and organic pollutants cause more damage in birds as thinning of eggshell and tissue damage of egg.
Oil spilling causes abnormally low body temperature in birds resulting in hypothermia.
Oil films are able to retard significantly the rate of oxygen uptake by water.