So, for the first time, I did a lot of Prawning in April in the Saanich inlet. Myself and a buddy dropped our two sets each on April 1st and proceeded to prawn for about 3 weeks, pulling them daily, so we had a good sample size to determine what worked and what didn't with bait.
The biggest revelation was that prawn bait didn't work any better than Costco Lamb and Rice dog food. Yup, my buddy had run out of prawn bait one day and just pilfered some of his dog's food instead. Turns out, it worked just as well as prawn bait. Several times, I used prawn bait on my traps while his were loaded with dog food and all of the traps were in the same area. His produced just as well as mine. And given that dog food is about 20% of the cost of prawn bait, a lot more cost effective. I also added liquid prawn scent on occasion and saw no discernible difference. Sounds crazy that prawns like lamb and rice dog food but explain to me why crabs like chicken?
There were a couple of occasions when we forgot new bait so just sent the traps back down with the old food. When pulled the following day, our traps were just as full as other days.
Lastly, when we started out, my traps were the round commercial style net type traps and his were the square, coated metal Bauer style traps. This was the biggest difference. His traps were loaded and mine were almost empty despite being in the same area. Not sure why, but obviously the netting seemed to dissuade the prawns from either entering or staying in the traps? After two days of his traps being loaded and mine with only a handful of prawns, I bought some of the Bauer style traps and had instant success.