Collagen is the principal constituent of the fiber-network layer of our skin. More than a third of the body's protein is collagen, and it can account for an even higher percentage in particular parts of the body. Collagen makes up 70% of our skin tissue.
Sea lice are parasites of the Caligidae family of arthropods and are among the most notorious pests affecting cultured marine fish.They have a particularly large impact upon salmonid fish production.ea lice on a salmon. (Wikimedia Commons). Sea lice are parasites of the Caligidae family of arthropods and are among the most notorious pests affecting cultured marine fish. They have a particularly large impact upon salmonid fish production.
These are animals the Phylum Annelida, Class Polychaeta, Family Amphinomidae. Commonly they are called: Bristleworm, Fireworms; Large Scavenger Fireworms.Eurythoe complanata. Left. A Eurythoe foraging on some Caribbean sand.he scales on this worm cover the entire upper surface. Scale worms are small polychaete annelids or bristle worms that are scavengers or predators in natural marine ecosystems. They seldom exceed 2.5 cm (1 inch) long, but there are a few bigger ones.