Individual-based modelling of cyanobacteria blooms: Physical and physiological processes

被引:34
|
作者
Ranjbar, Mohammad Hassan [1 ]
Hamilton, David P. [2 ]
Etemad-Shahidi, Amir [1 ,3 ]
Helfer, Fernanda [1 ]
机构
[1] Griffith Univ, Sch Engn & Built Environm, Southport, Qld 4222, Australia
[2] Griffith Univ, Australian Rivers Inst, Nathan, Qld 4111, Australia
[3] Edith Cowan Univ, Sch Engn, Joondalup, WA 6027, Australia
基金
澳大利亚研究理事会;
关键词
Agent-based modelling; Cyanobacteria; Climate change; Individual-based modelling; Physical processes; Physiological processes; HARMFUL ALGAL BLOOMS; MICROCYSTIS-AERUGINOSA COLONIES; CO2 CONCENTRATING MECHANISMS; BUOYANCY REGULATION; VERTICAL-DISTRIBUTION; LAKE TAIHU; LIFE-CYCLE; THERMAL STRATIFICATION; HYDRODYNAMIC MODEL; CHANGING CLIMATE;
D O I
10.1016/j.scitotenv.2021.148418
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Lakes and reservoirs throughout the world are increasingly adversely affected by cyanobacterial harmful algal blooms (CyanoHABs). The development and spatiotemporal distributions of blooms are governed by complex physical mixing and transport processes that interact with physiological processes affecting the growth and loss of bloom-forming species. Individual-based models (IBMs) can provide a valuable tool for exploring and integrating some of these processes. Here we contend that the advantages of IBMs have not been fully exploited. The main reasons for the lack of progress in mainstreaming IBMs in numerical modelling are their complexity and high computational demand. In this review, we identify gaps and challenges in the use of IBMs for modelling CyanoHABs and provide an overview of the processes that should be considered for simulating the spatial and temporal distributions of cyanobacteria. Notably, important processes affecting cyanobacteria distributions, in particular their vertical passive movement, have not been considered in many existing lake ecosystem models. We identify the following research gaps that should be addressed in future studies that use IBMs: 1) effects of vertical movement and physiological processes relevant to cyanobacteria growth and accumulations, 2) effects and feedbacks of CyanoHABs on their environment; 3) inter and intra-specific competition of cyanobacteria species for nutrients and light; 4) use of high resolved temporal-spatial data for calibration and verification targets for IBMs; and 5) climate change impacts on the frequency, intensity and duration of CyanoHABs. IBMs are well adapted to incorporate these processes and should be considered as the next generation of models for simulating CyanoHABs. (c) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).
引用
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页数:16
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