Document Type
Article
Department/Program
Virginia Institute of Marine Science
Publication Date
2021
Journal
PNAS
Volume
118
Issue
32
First Page
e2022977118
Abstract
Our study provides evidence that, in addition to diel vertical migration, zooplankton residing at >300-m depth during the day perform high-frequency, vertical migrations due to light modulation by clouds. Using a water-following framework and measurements and modeling of the twilight zone light field, we isolated the detailed phototactic response and show that some twilight zone animals are considerably more active than previously thought, with a cumulative distance traveled of more than one-third of that for diel migration. The increased movement increases predation risk and has implications for the metabolic requirements of these animals in the food-limited deep sea.
DOI
doi: 10.1073/pnas.2022977118
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Recommended Citation
Omand, Melissa; Steinberg, Deborah K.; and Stamieszkin, Karen, Cloud shadows drive vertical migrations of deep-dwelling marine life (2021). PNAS, 118(32), e2022977118.
doi: 10.1073/pnas.2022977118
Supplementary Material
