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Transcript of Lake Superior
About 60% is the annual inflow and about 40% is the annual
runoff. The inflow is from rain or snow that hits directly
onto the surface which is about 28 billion gallons a year.
That is a lot of water. It would take nearly 185 years to be completely
flushed out. Lake Superior is located by Michigan, Wisconsin and Minnesota, USA and Ontario, Canada. The abiotic factors of Lake Superior are the temperature, water,
soil and pH.
The temperature was 45°.
The water is the cleanest, clearest, and coldest of the Great lakes. The water surface is 31,700 square miles. The water volume is 2,935 cubic miles. Lake Superior contains three quadrillion (3,000,000,000,000,000) gallons of water.
The soil is very poor.
The pH surface water is in the Spring : 7.4-8.0.and the Fall: 7.6-7.9. 1975: 7.6-7.8. Animal Species
Lake Whitefish- It is a member of the salmon family.
Here are some characteristic
a small head with a blunt snout over hanging the lower jaw
the back is a pale greenish brown and sometimes dark brown to black
the sides of the adults have an overall silvery appearance
the underside is silvery white;
the fins are usually clear or lightly pigmented but further north the fins are often darker. Lake Trout
This is also part of the salmon family.
an elongate, trout-like body with a stout head
a large mouth and a snout which usually protrudes over the lower jaw when the mouth is closed
the overall body color, including the head, dorsal, adipose and caudal fins, consists of white or yellowish spots on a dark green to grayish backgrounds
the underside is white sometimes the paired fins are an orange-red color, especially in northern populations. Walleye
The walleye is the largest member of the perch family of fishes.
an elongate, slightly compressed body and a bluntly pointed head
a long, blunt snout which does not extend beyond the upper jaw
the back and top of the head are dark green; the sides are golden yellow; and the underside is milk-white or yellow-white
the dorsal and caudal fins are speckled, the pelvic fins are yellow or orange-yellow; and the pectoral fins are dark or pale olive. Rainbow Trout
The rainbow trout is a member of the salmon family.
an elongate, laterally compressed body
a rounded snout, which becomes extended and the lower jaw turns up in breeding males
the back, upper sides and the top of the head are steel blue, blue-green, yellow-green to almost brown
the sides are silvery, white or pale yellow-green to grey, and marked with a pink blush to red band and many small black spots
the underside is silvery, white or grey to yellowish
the dorsal and caudal fins have radiating rows of black spots, while the remaining fins are buff with few spots; and stream dwelling and spawning brown trout display darker, more intense colors, where as lake residents are lighter, brighter and more silvery. Largemouth Bass
The largemouth bass is a member of the sunfish family.
a robust body, less laterally compressed than the smallmouth bass
a large, long, head with a deep wide dorsal surface
a long, blunt snout not as deep as in smallmouth bass
a large, wide lower jaw slightly longer than the upper jaw
two joined dorsal fins, but separation more obvious than in smallmouth bass
the back and top of the head are bright green to olive and the sides are almost as dark in the largest fish to lighter green or golden green
the sides of the head are olive to golden green with some scattered black pigment and the underside is milk-white to yellow
the dorsal and caudal fins are opaque, green to olive; the anal and pelvic fins are green to olive with some white; and the pectoral fins are amber and clear
populations in clear, weedy water are darker and the black pigment is more obvious than those in darker, turbid water which are a pale green color overall Plant Species
Flowering Rush is a perennial plant from Europe and Asia that was introduced to the Midwest as an ornamental plant. It grows in shallow areas of lakes as an emergent plant, and as a submersed form in water up to 10 feet deep. Its dense stands crowd out native species like bulrush. The emergent form has pink, umbellate-shaped flowers, and is 3 feet tall with triangular-shaped stems. Curlyleaf Pondweed
Curlyleaf pondweed is a non-native plant that forms surface mats that interfere with aquatic recreation. The plant usually drops to the lake bottom by early July. Curlyleaf pondweed was the most harmful aquatic plant in the Midwest until Eurasian watermilfoil appeared. It was accidentally introduced along with common carp. Eurasian Watermilfoil
Eurasian watermilfoil was accidentally introduced to North America from Europe, according to the Minnesota Department of Natural Resources. In nutrient-rich lakes, it forms vast mats of vegetation at the surface of lakes, and in shallow waters it can interfere with swimming, boating and fishing. Stems or leaves torn off from plants easily take root and form new colonies. That makes it easy for boaters to infect new lakes by carrying plant debris on their propellers, rudders and keels. Purple Loosestrife
Purple loosestrife is a wetland plant from Europe and Asia that displaces cattails and other native plants in marshes and lakeshores throughout Minnesota. Loosestrife infestations have been documented in 2,408 locations in Minnesota, and the state has more than 63,000 acres afflicted with the invasive plant, the DNR reports. Infestations are heaviest in the Twin Cities metro area. Butterwort
Butterwort is found along the rocky shores of Lake Superior. It is insectivorous - it eats insects! The leaves are sticky, trapping insects that walk across them. Then the butterwort exudes an acid that digests the insect. The nutrients the plant gets from the insect help them survive in the harsh rocky environment they live in. Butterwort is listed as a species of concern in Minnesota. They are found in only a few scattered places along the North Shore. It is endangered because there is over 400 engendered species
in the basin.
There is 300 plants that are in endangered. The rest are fish.
Things to help protect the lake is less boats, only curtain number
of fish can be caught, and less destroying land.