Abstract
Upon applying TURING'S model to the observation on the distribution of particles measured in the surface layer off the Kuroshio axis, the dynamic properties of the two hypothetic reactants were inspected. Gerneral solutions for the model equation such as the following were employed, P(t, x)=nΣj=1Ajexp(λjt) cos (κjx+εj) Q(t, x)=nΣj=1Bjexp(υjt)cos(κjx+ηj) where P and Q denote the differences at the equilibria of their abundance and the other parameters are denoted as in TURING'S original model. The estimates of λj or υj against κj for j=1, 2, …, n are given by the comparison of two power spectra measured at intervals. Then substituting these values into the characteristic function of the model equations gives rise to the element of the simultaneous equations in five unknowns which denote their intrinsic growth rate or diffusion coefficients etc. Upon arranging some requirements for solving these equations in the present conditions, the five estimates were obtained. They suggested that the two hypothetic reactants were under a certain predatory state where one was decreasing convectively but the other was increasing similarly during the period.
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