Bottom otter trawl
The orange roughy is a deep-sea fish that grows slowly and that has a low reproduction speed. Because of this, this species is extremely vulnerable to overfishing. At many places this species is being overfished and populations have collapsed.
On top of this, it is a fish that lives around seamounts with vulnerable bottom fauna like cold-water corals and sponges, that are very vulnerable to bottom trawling fishery. This fishery causes irreversible damage to these areas.
This species occurs worldwide and is managed at some places, like New Zealand, but at most places there is no management. The management is not effective.