Marine pollution is a primary cause of eutrophication of surface waters, in which excess nutrients, usually nitrates or phosphates, stimulate algae growth. Many potentially toxic chemicals adhere to tiny particles which are then taken up by plankton and benthic animals, most of which are either deposit feeders or filter feeders. In this way, the toxins are concentrated upward within ocean food chains. Many particles combine chemically in a manner highly depletive of oxygen, causing estuaries to become anoxic. When pesticides are incorporated into the marine ecosystem, they quickly become absorbed into marine food webs. Once in the food webs, these pesticides can
Food Chains (film) Food Chains (film) Food Chains is a 2014 American documentary film about agricultural labor in the United States directed by Sanjay Rawal. It was the Recipient of the 2015 James Beard Foundation Award for Special/Documentary. In Immokalee, Florida, migrant farmworkers pick fruits and vegetables that are sold to large US food wholesalers. However, their working conditions are shown to be less than favorable. As a result, they form the Coalition of Immokalee Workers (CIW) to raise awareness and improve their circumstances. Specifically, they go on a hunger strike to pressure Publix, a Florida-based food wholesaler, to pay them one penny