Hi all,
My name is Moritz Schmid and I go scuba diving whenever I can do so (unfortunately not so very often
). The last time was in the Azores. I did take picture and videos with my GoPro.
The reason I am here though is that some colleagues and me are working on a scientific paper where we look at the feeding of chaetognaths/arrow worms. https://en.wikipedia.org/wiki/Chaetognatha
They are pretty cool creatures and thought to be mostly carnivorous, however, recent evidence points towards omnivory including diatoms, at least in some species.
If anybody has pictures they took underwater that show those arrow worms, we'd appreciate a ping. We'd be interested if chaetognaths you took pictures of have some visible prey in their guts.
If your picture makes it into the paper you will definitely be mentioned in the acknowledgements, and the photo would be attributed to you in the text.
Best regards,
Moritz