Delightful sea pens 🪶

As predominantly benthic creatures, sea pens anchor at various depths, from shallow intertidal zones to hadalpelagic zones at depths of up to 6000 m.While primarily sessile creatures, they are capable of moving to new areas and re-anchoring themselves, and their distribution is largely influenced by environmental factors, such as temperature, light availability, and substrate type.
Due to their sensitivity to environmental changes such as pollution and habitat disturbance, sea pens can serve as valuable indicators of ecosystem health and the impacts of human activities on the environment. This vulnerability to disturbance makes their presence or absence valuable for assessing the condition of marine ecosystems.

National Geographic