Lake sturgeon are nearshore fish that live at water depths of feet. They feed along lake bottoms, eating a variety of small animals including snails, crustaceans, aquatic insects, mussels, and small fish. Most lake sturgeon caught today weigh between pounds and grow to feet in length.
Most U. In fact, there are plenty of beautiful lakes across the U. But hands down, Lake Michigan is the most popular because this lake touches the most states.
From Dr. When the Great Lakes water levels were unusually low from approximately through or so, this was pointed to as evidence that global warming was causing the Great Lakes to dry up. Take for example this article from National Geographic, which was accompanied by this startling photo:.
Weather affects water temperature in a lake every day and throughout the year. On a daily basis, weather conditions can cause subtle changes in water temperature. Cloud cover is also important.
Though the past winter was the hottest on recordit was chilly enough on the East Coast to send seasonal sheets of ice creeping across the Great Lakes. Now that that ice has cleared with spring, Lake Michigan is clear enough that shipwrecks lying on the lake bottom can be seen from the air. The U.
Listen Listening A gunship that sank during battle more than two centuries ago might finally be resurfaced from the depths of Lake Champlain and put on display. On Oct.
You may have heard about the rip tide or undertow before. These are terms that people commonly use to describe dangerous currents. Instead, we call these dangerous currents. This lesson explores dangerous currents, including rip currents, that commonly occur throughout the Great Lakes.
Author contributions: J. Scholars have hypothesized that the poorly understood and rarely encountered archaeological sites from the terminal Paleoindian and Archaic periods associated with the Lake Stanley low water stage 10,—7, BP are lost beneath the modern Great Lakes. Acoustic and video survey on the Alpena-Amberley ridge, a feature that would have been a dry land corridor crossing the Lake Huron basin during this time period, reveals the presence of a series of stone features that match, in form and location, structures used for caribou hunting in both prehistoric and ethnographic times.
The authors do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment. Republish our articles for free, online or in print, under Creative Commons licence. Awareness is rising worldwide about the scourge of ocean plastic pollutionfrom Earth Day events to the cover of National Geographic magazine.