Attn: Fisheries Biologists!

How would someone even begin to investigate this???

We have been freediving for halibut on Tomales Bar very frequently for many years.  In the last 2 seasons, there have been very few halibut there.  And it seems like we have not seen the big schools of baitfish that usually hang out on the bar.  We've called them pencilfish but I do not know what they really are.  But they are definitely gone.

How would we find out what has changed to cause the present conditions?  And perhaps more importantly, what would cause the return to  what we were calling normal?

Thanks,
John Morozumi
Sebastopol