The Newston net is lifted after being towed for a certain period of time. Samples in the net are flushed with water and collected at the cod end. The collected samples are taken to the laboratory.
Autumn is the season of bloom, and the amount of phytoplankton increases. As the weather gets colder and colder, the amount of plankton decreases. Then, in the early spring, there will be more plankton due to the spring bloom.
