Source: www.fishconsult.org Credit: Leon Felipe Alviz (Bolivia) The two photos show two common fishing boats operating in Bolivia. The first is non-motorized boats (rawboats) which is called “casco” that means helmet. The boat is made of sandbox evergreen tree “Hura crepitans”, and/or Mara “Swietenia macrophylla” which is known as big-leaf mahogany. This boat operates …