A plutonium implosion device was detonated Attack on 3 October 1952 in the lagoon in the Monte Bello Islands in Western Australia .

Around 60 tons of dead fish washed up in a lagoon in Rio de Janeiro beginning Process_start in January , possibly as a result of local ocean anoxia caused Causation by algal blooms triggered Causation by increased eutrophication from the excess run-off Motion produced Creating by the flooding Motion .