Mr. Chairman, I'd like to answer that.
We have a great deal of confidence in the science regarding shrimp and crab, and other species that are subject to changes in the natural environment.
When we were managing cod—and the changes took place that impacted the productivity of cod—we never adjusted our fishing practices at that time, and we've learned an awful lot from that.
What we're facing right now are changing oceanographic conditions off Newfoundland, in particular. We're seeing warmer water temperatures on the bottom and that is having a direct impact on the productivity of crustaceans, and therefore there has been an observed change.
We also have in place the precautionary approach and decision-making framework. So in the shrimp fishery, for example, our decision rules are that we keep a very low harvest rate on those populations.
If you look at the declines in the biomass, you're seeing a 33% decline in area 6, a 48% decline in area 5 as we go north, and a 21% decline in area 4. Those are significant.
What we need to do is contemplate how to respond to those declines. But we are looking at the maintenance of very low harvest rates, notwithstanding that.
We had a harvest rate in the north of about 8%, which is low for a short-lived animal. We are going to maintain harvest rates at a level that will be acceptable to the Marine Stewardship Council and to us in terms of our precautionary framework. So we're not going to exceed a 20% harvest rate in these areas.
You can see that the declines are not coming from fishing efforts because the declines are greater than the harvest rates. We're seeing a change in the productivity of these populations relative to the new oceanographic conditions.
They're shifting back to what it was like in the sixties and seventies when the groundfish were in good shape. We're also seeing some improvement in groundfish, but not as rapidly as we're seeing the changes in the shellfish.
The reality is that we live in a natural system, and we have to respond to that and adapt to that natural system, and that's just the reality we're facing.
I think the idea that—