One early management technique was to define a "season" during which fishing was allowed. The length of the season attempted to reflect the current abundance of the fishery, with bigger populations supporting longer seasons. This turned fishing into a race, driving the industry to bigger, faster boats, which in turn caused regulators to repetitively shorten seasons, sometimes to only a few days per year. Landing all boats over an ever-shorter interval also led to glut/shortage market cycles with prices crashing when the boats came in. A secondary consequence was that boats sometimes embarked when the fishery was "open" regardless of weather or other safety concerns.