What is the cleanest Great lake to swim in?
Lake Superior is the nation’s cleanest, thanks to its oxygen-rich (10. L), clear (. NTU turbidity) and low-minerals water (44. L Total Dissolved Solids). Lake Superior continues to be a good source of high-quality drinking water. Most toxic chemicals monitored in Lake Superior are low compared to other Great Lakes and long-term trends indicate that concentrations are declining.
Does Lake Superior have bull sharks?
The reality is that the largest of the Great Lakes (Lake Superior and Michigan) are extremely deep lakes that are too cold for sharks. While bull sharks have been reportedly found up to 1,000 miles deep into the Mississippi, the waters are much warmer than the Great Lakes. Physical Barriers: The Great Lakes are landlocked, with numerous locks, dams, and waterfalls preventing sharks from entering from the ocean. Even the most determined shark would find it nearly impossible to navigate these obstacles.
Have sharks ever been found in the Great Lakes?
While bull sharks have evolved to live in freshwater, the reality is that there are no verified reports of sharks in the Great Lakes. While there have been past “sightings,” most have turned out to be pranks or misidentifications. Lake Nicaragua in Nicaragua Bull sharks travel to Lake Nicaragua by jumping a series of rapids, a behavior that has not been seen in these sharks anywhere else in the world. Bull sharks travel up the San Juan River to Lake Nicaragua and sometimes spend years in the lake before returning to the Caribbean Ocean.
What is the biggest predator in Lake Superior?
The siscowet lake trout is only found in Lake Superior and is the main predator in the deepwater region of the lake. Lake trout historically were the top predator in Lake Superior and supported valuable commercial, subsistence, and sport fisheries. Although more than 140 non-native species have entered the Great Lakes, the sea lamprey is considered the most harmful.The top predators in the Great Lakes ecosystem include the lake trout, northern pike, and muskellunge. These species are at the top of the food chain and play a crucial role in maintaining the balance of the ecosystem.