MODEL MATEMATIKA POPULASI PLANKTON DAN KONSENTRASI NITROGEN
Abstract: Phytoplankton and
zooplankton have a major impact on the marine ecosystem because plankton is the
main food chain in the ecosystem. However, this plankton’s concentration
changes is influenced by nitrogen concentrations. This study began by making
mathematical model based on the variables , parameters and assumptions that
have been determined. Next step are finding and analyze an equilibrium point.
Mathematical model in plankton populations and nitrogen concentration in the
form of non-liner differential equation system. This dinamical system have two
equilibrium points ie the points where nitrogen without plankton and the point
where nitrogen and plankton. The stability of the system can be viewed from two
condition, first when the system has one point where nitrogen without
planktonthen this point will be stable. Second, when the system have two
equilibrium points then only point where nitrogen and plankton will be stable.
This result show that population of phytoplankton, zooplankton and nitrogen
concentration will not disappear in the long term.
Penulis: Elvi Silvia, Yarman,
Muhammad Subhan
Kode Jurnal: jpmatematikadd141501
