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Comment
. 2019 Jun 11:8:e48459.
doi: 10.7554/eLife.48459.

Finding the fish factor

Georg Pohnert  1   2
Affiliations
Comment

Finding the fish factor

Georg Pohnert. Elife. .

Abstract

The water flea Daphnia moves to deeper waters to avoid predators when it detects a chemical produced by fish.

Keywords: Cyprinus carpio; Daphnia magna; Rutilus rutilus; daphnia; diel vertical migration; ecology; kairomones; zooplankton.

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Conflict of interest statement

GP No competing interests declared

Figures

Figure 1.
Figure 1.. Daphnia water fleas change their behavior if fish are present.
Left: During the day Daphnia migrate to deeper, darker regions of the lake if they detect chemical signals called kairomones (not shown) that are released by fish. Middle: At night, when fish cannot see them, Daphnia move up to the water near the surface to eat the microalgae (green circles) that are plentiful there. Right: When no fish are present, there are no kairomones to detect, and Daphnia stay near the surface day and night.
See this image and copyright information in PMC

Comment on

References

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