Important anthropogenic inputs of copper into the ocean include urban sewage sludge dumping, runoff from copper mines, antifowling paints, Copper is an essential element for animals, especially decapods, gastropods and cephalopods need copper in the respiratory pigment hemocyanin. Hemocyanin is a protein which (like hemoglobin) binds oxygen to transport it to the tissues. It is however also one of the most toxic metals to a wide spectrum of marine life.
- Kennish, M. J. (1996): Practical Handbook of Estuarine and Marine Pollution, CRC Press 524 pp