blueeyes_austin:
Well, you'd think that...but there's a whole literature in economics discussing the "Tragedy of the Commons" that describes why it's not true. (Fisherman don't have the choice between preserving the population at a sustainable level and overfishing...those who do not overfish will simply find their catch distributed among those who do.)
So what you're saying is don't allow fishing what so ever as it can only lead to over fishing because no fisherman can be counted on to be honest enough to stick to the selective harvesting practices needed to have a sustainable fishery?
Poppycock. Baulderdash. When you look at the primary culprits responsibile for over fishing you'll soon realize that the majority of it done by fishermen foreign to the graounds, utilizing factory ships and fishing in internatioanl waters where quotas are non existent.
When Canada imposed a 200 mile off shore limit to our waters and started to protect the Grand Banks, quotas were imposed, harvests monitored, all in an effort to try and sustain the fishery. Foreign fleets (with no regard for the local ecology) frequently over fished illegally in protect waters. Why should they be concerned with the local ecology...after all it was not on their shorelines and when the fish were all taken, they just moved on to other furtile grounds.
From what I've read so far about the new protection zone (which is not much I have to admit..just whats been made avaiable so far), the issue of the fishery had more to do with the local fleet, and not the bulk trawlers and factory ships we seen cruising up and down the outside of the Grand Banks. If this is the case, sustainable fishing is possible. The mico ecomony, if it includes quotas and catch limits, and the fisherman's own need for a long term sustainable industry can keep overfishing in check.
It's only when outside interests that don't have a stake in sustainability (traveling fleets) get involved do you see fisheries completely depleted.
As to the Tragedy of the Commons, there are many examples of the opposite actaully occuring when it comes to natural resources. By the same Tragedy of the Commons theory, there shouldn;t be any deer, turkey, geese, ducks etc left in North America. these should been hunted to exticntion many years ago and reside now only in game preserves and national parks.
The solution was to outlaw market hunting, establish sustainable harvesting limits.and engange the hunitng community. The same has been done in inland fisheries both commercial and recreational.