Zoo photo of the day: Chaetognatha (arrow worms)
Photographer:Peter ParksRights:© Image Quest 3-D
Chaetognaths are an ecologically important and abundant group of predatory marine zooplankton. These taxa have been routinely found in our zooplankton sampling since 1984. In the Gulf of Naples, Chaetognaths reach their peak abundance in October after the peak of summer copepods occurs.
Using mechanoreceptors, chaetognaths are able to sense their prey and utilize ambush feeding behaviors! These sensitive receptors also determine the size of their prey catch based on the size of their mouth. Pretty amazing stuff!
I’ll try and post images of the taxa I study so we can put some names with all the numbers.