Dataset: Annotations of video taken under dissecting microscope of Obelia feeding on a natural prey assemblages (Jellyfish predation in turbulence project)

Feeding behavior sequences (2- 10 min) with a mixed prey assemblage were recorded at 30 or 60 Hz under a dissecting microscope with a Sony HD camcorder (1920 x 1080 pixels) to analyze individual prey encounters and captures.

For each prey encounter, the diameter of the Obelia (with and without tentacles), the length of the prey (longest dimension), the location of prey encounter (tentacle tip, center or base), timing of encounter during pulse cycle (contraction, relaxation, still) and the prey transfer time (time to transfer prey from the tentacle to the manubrium) were measured using ImageJ (NIH).