Modeling phytoplankton dynamics in the River Darling (Australia) using the radial basis function neural network
Date
2006
Authors
Hou, G.
Li, H.
Recknagel, F.
Song, L.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of Freshwater Ecology, 2006; 21(4):639-647
Statement of Responsibility
Guoxiang Hou, Hongbin Li, Friedrich Recknagel and Lirong Song
Conference Name
Abstract
A radial basis function neural network was employed to model the abundance of cyanobacteria. The trained network could predict the populations of two bloom forming algal taxa with high accuracy, Nostocales spp. and Anabaena spp., in the River Darling, Australia. To elucidate the population dynamics for both Nostocales spp. and Anabaena spp., sensitivity analysis was performed with the following results. Total Kjeldahl nitrogen had a very strong influence on the abundance of the two algal taxa, electrical conductivity had a very strong negative relationship with the population of the two algal species, and flow was identified as one dominant factor influencing algal blooms after a scatter plot revealed that high flow could significantly reduce the algal biomass for both Nostocales spp. and Anabaena spp. Other variables such as turbidity, color, and pH were less important in determining the abundance and succession of the algal blooms. © 2006, Copyright Taylor & Francis Group, LLC.