On mathematical simulation of a pelagic ecosystem in tropical waters of the ocean

✍ Scribed by M. E. Vinogradov; V. V. Menshutkin; E. A. Shushkina

• Publisher: Springer-Verlag
• Year: 1972
• Tongue: English
• Weight: 887 KB
• Volume: 16
• Category: Article
• ISSN: 0025-3162
• DOI: 10.1007/bf00347747

✦ Synopsis

Consideration is given to a finite-difference model of functioning of a pelagic community inhabiting the upper 0 to 200 m layer of the tropical waters of the ocean. The model was developed on the basis of original data, obtained mainly on the 44th cruise of the I~.V. "Vityaz" in the western Equatorial Pacific Ocean. Changes in the system are studied in time (up to 100 days, with I day intervals) and in depth (from surface to 200 m depth, with 10 m intervals). The state of the system in the upwelling zone, assumed ~o be characterized by a homogeneous vertical distribution of all its elements, is regarded as initial. The system then develops with time while it moves with the water flow. The model was realized on a BESM-3~ computor. The computations yidded a pattern of changes in time of the biomass of the elements (expressed in calories), and a pattern of their vertical distribution at different instants. The vertical distribution pattern of the major elements of the model shows a rather close correlation with their observed distribution in the ocean at the corresponding instant.