Optimal allocation backs Droop’s cell-quota model

Marine Ecology Progress Series

Markus Pahlow¹  Andreas Oschlies¹ 

关键词: Optimality-based model;    Cell quota;    Droop model;   

DOI  :  10.3354/meps10181

学科分类：海洋学与技术

来源: Inter-Research

【 摘 要 】

ABSTRACT: Droop’s cell-quota model is the most successful description of phytoplankton growth in laboratory cultures and is increasingly being introduced into the ecosystem components of biogeochemical models. Although the Droop model’s parameters can be easily interpreted in biological terms, it was nevertheless derived empirically and lacks a sound mechanistic foundation. Here we derive Droop’s model from a simple optimality condition which maximises net growth rate.  Our approach links the maximum cell quota to the cost of nutrient acquisition and suggests that respiration is influenced more strongly by C fixation than by N assimilation.

【 授权许可】

Unknown