What fundamental biological process supports the ecosystem near the Yeti Crab's habitat?
Chemosynthesis performed by bacteria converting chemical energy
The deep-sea hydrothermal vent environments where *Kiwa hirsuta* thrives are entirely devoid of sunlight, making photosynthesis an impossibility for primary producers. Instead, the entire local ecosystem is fundamentally dependent on chemosynthesis. This process involves specialized bacteria that convert chemical energy, sourced from the superheated, mineral-rich water issuing from the seafloor (rich in toxic sulfides), into usable organic matter. The Yeti Crab's entire feeding strategy relies on consuming these chemosynthetic bacteria cultivated on its setae, separating its energy source from the vast majority of Decapoda that rely on organic fallout from sunlit surface waters.
