Figure 7: Simulation in two-dimensional space. The figures show the density levels of the phytoplankton on the 1000th day, where the width is 100 m and the depth is 300 m. (a) (m2·day−1) and (m·day−1). (b) (m2·day−1) and (m·day−1). (c) (m2·day−1) and . The other parameters are given in Table 1.