The short answer is that almost everything was a surprise.
Specifically, we found that coho salmon were much farther offshore than expected. We found that pink salmon were at the southern limit of our survey. They should have been the most abundant species, and they were pretty close to the least abundant. Their distribution is going to be much farther south.
We found that pink salmon and sockeye and chum did not overlap and compete. We found a Chilko juvenile sockeye way out in the middle of the Pacific. We made estimates of the expected returns of chum salmon in 2019 and 2020, just based on our catches, and they weren't too bad. We've also made a quick estimate of what will come back to the Fraser this year. We're projecting that it would be a little bit better than the last two years.
Some of this isn't publishable science, but you asked me, and the short answer is that just about everything we found was new.