Parasitism is a type of symbiotic relationship where one organism, the parasite, benefits at the expense of the other, the host. In the ocean, a common example of parasitism is the relationship between the copepod and the fish.
Copepods are tiny crustaceans that can attach themselves to the skin, gills, or even the eyes of fish. Once attached, they feed on the fish’s blood, tissues, or mucus. This can weaken the fish, making it more susceptible to diseases and reducing its overall health. In severe cases, heavy infestations can even lead to the death of the fish.
While the copepod benefits by gaining nutrients and a place to live, the fish suffers from the loss of vital resources and potential infections. This relationship is a clear example of how parasitism can impact marine life, highlighting the delicate balance within ocean ecosystems.