Involved in oxygen transport from gills to the various peripheral tissues. Hb1 is a heterotetramer of two alpha-1 chains and two beta-1 chains. Hb2 is a heterotetramer of two alpha-2 chains and two beta-1 chains. HbC is a heterotetramer of two alpha-1 chains and two beta-2 chains. Red blood cells. This fish has three hemoglobins: Hb1, Hb2 and HbC accounting for about 70%, 5% and 25% of the total, respectively. Hb1 has high oxygen affinity and displays strong Bohr, Root and phosphate effects. Belongs to the globin family.