 Light does not reach this zone, giving it its nickname "the midnight zone"; due to the lack of light, it is less densely population than the epipelagic zone, despite being much larger.Fish find it hard to live in this zone, as there is crushing pressure, cold temperatures of , a low level of dissolved oxygen, and a lack of sufficient nutrients.What little energy is available in the bathypelagic zone filters from above in the form of detritus, faecal material, and the occasional invertebrate or mesopelagic fish.