Brook Trout are not genetically programmed to die after spawning as are the Pacific species of salmon. Spawning is however difficult and dangerous and many fish do die during spawning. The length of the incubation period varies according to the temperature - at lower temperatures the incubation period is longer.
More than half of the total length of the German autobahn network has no speed limit, about one third has a permanent limit, and the remaining parts have a temporary or conditional limit. Some cars with very powerful engines can reach speeds of well over 300 km/h (190 mph).
Under pressure from the U.S., the province lowered the limit to 100 km/h in 1976. And thatâs where it remains today, even though most other jurisdictions have since raised theirs. Most U.S. states have a 70 mph (113 km/h) limit. The highest speed limit in North America is 85 mph (140 km/h) on Texasâs State Highway 130. Ontarioâs low limit is often defended on the basis of speed elasticity â the assumption that drivers will automatically exceed the posted limit by a certain margin.