Model of Algal Growth Depending on Nutrients and Inorganic Carbon in a Poorly Mixed Water Column

A stoichiometrically derived algal growth model and its global analysis

Organisms are composed of multiple chemical elements such as carbon, nitrogen, and phosphorus. The scarcity of any of these elements can severely restrict organismal and population growth. However, many trophic interaction models only consider carbon limitation via energy flow. In this paper, we construct an algal growth model with the explicit incorporation of light and nutrient availability to characterize both carbon and phosphorus limitations. We provide a global analysis of this model to illustrate how light and nutrient availability regulate algal dynamics.

营养竞争作为光合共生中调控的一般机制

Nutrient Competition as a General Mechanism of Regulation in Photosymbiosis

本研究通过广义建模揭示氮限制通过种内与种间竞争相互作用稳定光合共生，并随宿主氮同化增强转向种间竞争主导。

NPZD模型中的前向迟滞与Hopf分岔及其在有害藻华中的应用

Forward hysteresis and Hopf bifurcation in an NPZD model with application to harmful algal blooms

本文构建纳入浮游植物有害效应的NPZD模型，通过稳定性、Hopf分岔与前向迟滞阈值分析，揭示藻华、浮游动物灭绝及短期营养盐耗竭风险。

A structure-preserving numerical approach for simulating algae blooms in marine water bodies of western Patagonia

Patagonian fjords' area is one of the largest estuarine regions in the world. Every one of its water bodies displays a unique hydrodynamic behavior with enormous effects on the biogeochemical characteristics of the ecosystems. In this context, algal blooms are ecological phenomena of major relevance. Numerical simulation has proved to be a promising tool to understand their impacts. It has not been used for studying algal blooms in this zone. This article focuses on proposing a novel numerical model for simulating brief algal blooms occurring in water bodies of western Patagonia. The proposed …

Dynamic variability of the phytoplankton electron requirement for carbon fixation in eastern Australian waters

Fast Repetition Rate fluorometry (FRRf) generates high-resolution measures of phytoplankton primary productivity as electron transport rates (ETRs). How ETRs scale to corresponding inorganic carbon (C) uptake rates (the so-called electron requirement for carbon fixation, e,C), inherently describes the extent and effectiveness with which absorbed light energy drives C-fixation. However, it remains unclear whether and how e,C follows predictable patterns for oceanographic datasets spanning physically dynamic, and complex, environmental gradients. We utilise a unique high-throughput approach, cou…