Kelp and Wrack are types of what?
Kelp fly Kelp fly Kelp fly is one common name of species of flies in a number of families of "true flies" or Diptera. They generally feed on stranded and rotting seaweed, particularly kelp in the wrack zone. When conditions are suitable they are very numerous and may be ecologically important in the turnover of organic material on the coast. In this role they also may be an important item in the diet of beach-dwelling animals and birds. The flies most generally referred to as kelp flies are the widely distributed Coelopidae. In popular speech however, they are not clearly distinguished from
Wrack zone and recreational value. The removal of organic debris limits habitat and food availability for wrack-associated animals and inhibits the formation of dunes. Sea walls and other coastal armoring structures can affect the location of a wrack zone and reduce the accumulation of organic material. This can negatively impact the structure and diversity of coastal habitats. Wrack zone The wrack zone or "wrack line" is a coastal feature where organic material (e.g kelp, seagrass, shells) and other debris is deposited at high tide. This zone acts as a natural input of marine resources into a terrestrial system, providing food and habitat