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
National Collection of Industrial Food and Marine Bacteria National Collection of Industrial Food and Marine Bacteria The National Collection of Industrial, Food and Marine Bacteria (NCIMB) is a culture collection in the United Kingdom consisting of microorganisms from environmental samples (particularly marine bacteria) as well as bacteria involved in the production or spoilage of food and drink, and bacteria with important industrial properties. It is a large reference collection and has over 10,000 deposits. Deposits to the collection can be made for research purposes (for example to name a new species), or for inclusion into patent submissions. Prior to 1982 the collection was one of a number of