Seeking Answers on Oarfish Questions for an English Assignment- Why does it live in such deep waters ? And more

Hello ! I’m currently working on an English assignment for my freshman year in college. We are having to create a news article about a topic of our choice, and I chose to do mine on the oarfish. Part of the assignment is a choice piece and I was wanting to do an interview style portion. I was wondering if anyone could answer some of these questions for me ?

Thanks in advance !

Questions about the oarfish:

Is there a ballpark estimate for how many oarfish are in the oceans ?

Why does it live in such deep waters ?

When was the oarfish first discovered ?

How do scientists study such an elusive and deep water fish ?

Are there different species of oarfish ?