What happened to the IDNR guy that was doing surveys at Bluegrass?

I saw the IDNR guy there earlier this April doing the surveys. But I have not seen him there lately. I'm wondering if he quit or what happened to him. I've seen an IDNR White truck driving around the area and wondered if that was him?

Normally in the past Dan had them stay at one launch ramp for half a day and alternate launch ramps the next day. But this guy seemed to be moving form one launch ramp to the next during the same day.

I helped him write down his data one day as he was measuring the fish that someone had caught. He was having trouble measuring the fish and they writing down the data at the same time. So I offered to mark his chart for him so he could do the job faster. Afterwards I asked him what his name was but he just walked away and ignored my question. He didn't seem that friendly or at ease with the job from what I could tell. So I wonder if he just quit?