Author(s): Debabrata Das

Abstract: Species association is entertained in recent time using the logic of association rule-mining technique of data mining and found that the intra fish species association may follow an asymptotic distribution. As in fisheries, it has been found that intra species association remained very cohesive at the early stages of fish life cycle. Fishes have a huge number of offspring in the natural open water system. Each species has an initial association with lots of individuals, at this stage. Found most among the vertebrate and some even other non-vertebrate animals. Negative change in association in terms of individual fish with increasing fish age may prevail. The same association is highly dispersive when the species become aged. Association of such intra species distribution is a true asymptotic, Y=aXb , specifically Y=575.4 *X-0.8041, R2 = 0.8, when we plot them in co ordinates X axis as Fish number and Y axis as fish age in days. This type of model association may form due to their biological reasons. Practical utility of this derivation, however, may remain in predicting fish catch in open water natural system per single effort. This present communication is made based on a derivation of intra species association model of species Puntius.

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