Linked from
The 18 pages that link to Deep-sea ecology, each with the reason it gives.
HagfishNarrower topic: As scavengers, hagfish help consume carrion in deep-sea ecosystems.
MeiofaunaRelated: Deep-sea meiofauna remain difficult to sample across vast and varied habitats.
Brittle starRelated: Some brittle stars dominate or strongly influence deep-sea habitats.
CrinoidRelated: Many living stalked crinoids inhabit deep-sea environments.
Scotoplanes globosaNarrower topic: Its feeding and habitat connect it to deep-ocean food webs.