Strain the seaweed will continue to develop in accordance with the breeding capability and characteristics of the development area. Especially if it happens domestication in certain areas. strain differences seaweed Kappaphycus alvarezii most prominent can be seen from the color differences. When this has also developed strains developed in Indonesia so named Maumere strain, strain Bangkok, Polewali strain, strain kale / girl bali, etc.
Naming strain determined in accordance with the name of Regional development of the seaweed. Kappaphycus alvarezii strain Maumere also from the Philippines, with a reddish-brown thallus with irregular branching and large diameter.
Figure 7. Various strains of seaweeds Kappaphycus alvarezii (a) Maumere, and (b) kale / girl bali
Widyastuti (2007) in his research states that the growth of seaweed Kappaphycus alvarezii Maumere strain produces carrageenan growth and better results compared to the strain tambalang. as well as Djokosetiyanto et al., (2008) which compares the growth of strains between Kappaphycus alvarezii Maumere, sacol and Eucheuma denticulatum Maumere indicate that the strain produces the most rapid growth and are more resistant to disease.