Solo diving II. In the late 1940s, after the invention of the Aqua-lung by Cousteau and Gagnan, the first retail underwater breathing apparatus for sport was commercially marketed. As the sport expanded through the 1950s, several sporting organisations – notably the Young Men's Christian Association (YMCA) – began scuba training programmes for swimming enthusiasts, thus began the codification of what was believed to be proper practices for the expanding amateur sport of scuba diving. The buddy system was thought to be a useful corollary to the "never swim alone" edicts of the YMCA swimming and lifesaving programmes. Cousteau independently implemented a buddy
Jacques Cousteau National Estuarine Research Reserve Environmental Technology. Jacques Cousteau National Estuarine Research Reserve The Jacques Cousteau National Estuarine Research Reserve, located in southeastern New Jersey, encompasses over 110,000 acres (450 km²) of terrestrial, wetland and aquatic habitats within the Mullica River-Great Bay Ecosystem. A wide range of habitats includes the pinelands, lowland swamps, freshwater marshes, salt and freshwater tidal marshes, barrier islands (sandy beaches and dune habitats), shallow bays and the coastal ocean. Little more than one percent of this reserve has been subject to human development. The area is one of the least disturbed estuaries in the densely populated urban corridor of the northeastern