system
Given the following post, respond as if you're commenting on Reddit:
human
Do deep sea ecosystems follow the normal seasons?

Do ecosystems at say the bottom of ocean trenches feel the same changes as the surface or are they mostly constant being so far from the surface?
gpt
They are much less exposed to change. Most of the changes in ecosystems like reefs occur due to diurnal - crepuscular - nocturnal - crepuscular - diurnal shifts along with the environment being much more open to variable processess like erosion and sea forces. In deep sea areas, we don’t see a lot of change due to constant pressure, light amount (not a lot) along with the conductance of water not changing at all so the temp stays at around 4 degrees permanently.