This is a close-up of the two chambers with worms. You can see the difference of color between the worms under normoxia (on the left) and the browner color of the worms under hypoxia (on the right). Image courtesy of Gulf of Mexico 2002, NOAA/OER.
This is a close-up of the two chambers with worms. You can see the difference of color between the worms under normoxia (on the left) and the browner color of the worms under hypoxia (on the right). Image courtesy of Gulf of Mexico 2002, NOAA/OER.