Sharks, seals, and sea otters find these forests to be great hunting areas. Kelp is commercially harvested for lots of products that are used by people. Kelp has a chemical called algin. Algin is used as a thickener, stabilizer, and emulsifier. Thinkeners increase a substances density by making the substance less watery.
Stabilizers prevent foods from getting rotten and emulsifiers help ingredients from separating.
Algin from kelp is used in ice cream and lots of other dairy products as well as in many kinds of processed foods, beverages, and medicines. Algin is also used for making paper, cometics, ceramics, paint, and insecticides.