The Bathyal zone corresponds to the deep zone of the continental slope and its rise, between the edges of the continental shelf (-200 metres; circalittoral zone) and the beginning of the abyssal plains (-2,000 to -4,000 metres; abyssal zone).
Description of the bathyal zone
This zone is characterised by the absence of light and a steep slope with embedded underwater canyons and valleys, down which continental sediment slides.
The wildlife in this zone is divided into benthic fauna, essentially detritivore, and bathypelagic fauna.
Xyelacyba myersi is a benthopelagic fish found in the bathyal stage. © WorldFish Center - FishBase CC By-nc 3.0