Foraging mode and prey size spectra of suspension‑feeding copepods and other zooplankton

Marine Ecology Progress Series

Thomas Kiørboe¹ 

关键词: Prey perception mechanism;    Prey capture mechanism;    Pelagic tunicates;    Heterotrophic flagellates;    Dinoflagellates;    Cladocerans;   

DOI  :  10.3354/meps11877

学科分类：海洋学与技术

来源: Inter-Research

【 摘 要 】

ABSTRACT: Prey size spectra of suspension-feeding zooplankton may be predicted from foraging mode and a mechanistic understanding of prey perception and capture. I examine this for suspension-feeding copepods where 2 foraging modes can be distinguished: ambush feeding and active (i.e. cruising and feeding-current) feeding. Prey perception mechanisms differ between the 2 foraging modes. I use simple arguments to predict that the ambush strategy targets larger prey and has a narrower prey size spectrum than the cruising and feeding-current feeding strategies. I compile data from the literature that confirm the prediction. I also make qualitative predictions of food size spectra in zooplankton with other prey perception mechanisms that accord with observations.

【 授权许可】

Unknown