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Updated: Nov 28, 2025
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Individual Culturing of Tigriopus Copepods and Quantitative Analysis of Their Mate-guarding Behavior
Published on: September 26, 2018
9.9K
Predation risk triggers copepod small-scale behavior in the Baltic Sea
Klas Ove MÖller1, Michael St John2, Axel Temming3
1Institute of Coastal Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany.
Journal of Plankton Research
|November 26, 2020
Summary
Zooplankton exhibit predator avoidance through diel vertical migration (DVM). This study reveals individual variations in DVM behavior in response to predators, impacting ecosystem dynamics.
Area of Science:
- Marine Ecology
- Zooplankton Behavior
- Predator-Prey Dynamics
Background:
- Predators influence prey biomass and behavior through consumptive and non-consumptive effects.
- Diel vertical migration (DVM) is a key predator avoidance strategy in zooplankton, extensively studied at the population level.
- Understanding individual-level behavioral plasticity is crucial for zooplankton dynamics.
Purpose of the Study:
- To investigate individual-level diel adaptive behavior of zooplankton in response to predators.
- To document the vertical distribution and behavioral responses of zooplankton non-invasively.
- To analyze the relationship between predator biomass and prey behavior in situ.
Main Methods:
- Utilized an underwater imaging instrument, the video plankton recorder (VPR), for non-invasive observation.
- Combined VPR data with hydroacoustic estimates of predatory fish biomass.
- Observed individual copepod behavior and vertical distribution continuously in the natural environment.
Main Results:
- Documented small-scale DVM in ovigerous Pseudocalanus acuspes females in response to predators.
- Provided in situ observations of direct, short-term prey reactions to predator arrival.
- Revealed pronounced individual variation in adaptive DVM behavior.
Conclusions:
- Individual variation in DVM behavior has significant implications for individual performance.
- Understanding individual behavioral plasticity is key to comprehending zooplankton dynamics.
- Non-consumptive predator effects on zooplankton behavior are critical for ecosystem functioning.
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