Although Clostridium perfringens Type B is not considered a significant problem in the U.S.A., immunity may be provided against the beta and epsilon toxins elaborated by Cl. perfringens Type B. The immunity is derived from the combination of Type C (beta) and Type D (epsilon) fractions.
What do sea lampreys eat? A: Sea lampreys feed off the blood of large fish, including trout, salmon, whitefish, carp, catfish and sturgeon. The sea lamprey is native to the Atlantic Ocean but infiltrated the Great Lakes region in the 1920s and '30s during canal construction.
sea lampreys are members of an ancient family of jawless fishes that were around before the time of the dinosaurs the sea lamprey was first discovered in 1835 sea lampreys are aquatic vertebrates native to the atlantic ocean sea lampreys resemble eels but unlike eels they feed on large fish sea lampreys are members of an ancient family of jawless fishes that were around before the time of the dinosaurs