Invasive Species of the Great Lakeskvillepskms.sharpschool.com/UserFiles/Servers... · introduction of brown trout to New Zealand are probably reversible. Unlike brook and rainbow

Invasive Speciesof the

Great Lakes8th Grade Biology

Friday, October 22, 2010

AlewifeThe Alewife were first detected in Lake Ontario in 1873.

Since Alewife eat baby lake trout,its been a problem because lake trout are slow growers and they don’t know how to

defend themselves from Alewife.When lake trout lay eggs,the Alewife can easily

eat it.


Asian Carp

Asian Carps Weigh About 100 pounds and Four to five feet in Length

Female Asian Carp Can Produce about 1 million Egg

In the 1970s, the asian carps invades the Mississippi River.

Researchers expect that Asian carp would disrupt the food chain that supports the native fish of the Great Lakes.

By Justina Tran(:


Poison hemlock Poison Hemlock can grow to be up to 6 to 10 feet tall! It clusters of white flowers and hairless stalks.

Poison Hemlock leaves rough burns and blisters

It is known as the Toxic Parsnip.

The hemlock is now found in stream beds.

Hemlock originate from Europe and was introduced to America in the 1800’s

Poison hemlock can sicken and even kill a large population of herbivores in the Great Lake region


Possible Consequences to Great Lakes region

• Initial hopes for a revived Great Lakes Sport fishery rode on the sleek muscular back of the coho salmon.

• This species is a game fish and provides fine sport in fresh and salt water from July to December, especially with light fish tackle.

• During November 1997, a Portland television station and The Oregonian teamed with the Oregon chapter of the American Metrological Society to name the strong Columbia River Gorge winds through the contest.

COHO Salmon


Frog bit-Frog bit of the Great Lakes region original range is Eurasia

-The Frog bit invaded the Great Lakes Region in the 1930’s

-European frog-bit creates dense mats of vegetation once it becomes established and thus prevents light and nutrients from reaching submerged vegetation.


Dutch Elm Disease~Dutch elm disease is believed to be originated from Asia but was accidentally

introduced to America.

~Dutch Elm disease was first spotted in the early summer of 1961.

~This disease was first spotted on a tree from the highlands of St.Paul.~The disease was spread by a beetle called the elm bark beetle. It feeds on the bark and spreads the disease-killing a lot of elm trees. It could kill all the elm

trees in the Great Lakes region.

Elm Bark Beetle


EURASIAN MILFOIL

INTRODUCED TO THE GREAT LAKES IN THE 1940’S

ORIGINALLY FROM EUROPE BUT ATTACHED TO SHIPS AND TRANSFERRED TO GREAT LAKES

EURASIAN MILFOIL CAN SPREAD VERY QUICKLY AND CAN OVER GROW OTHER PLANTS AND

REDUCE OTHER NATIVE SPECIES THAT BENEFIT THE ECOSYSTEM MAKING IT HARDER FOR FISH AND

OTHER MARINE LIFE TO SURVIVE


Eurasian RuffeIs originally from Eurasia

Came to Lake Superior in 1985

It’s an aggressive fish and it reproduces rapidly; also has a lack of natural predators


Garlic MustardBy: Jessica Butts


Garlic Mustard• Garlic mustard is a cool season biennial herb with stalked, triangular to heart-shaped, coarsely toothed

leaves that give off an odor of garlic when crushed.

• Garlic Mustard can stay green through out the winter and grow into flowering plants in the following spring.

• Garlic mustard plants can grow to 2 to 3 one half feet in hight.

• They also can grow button like clusters of small white flowers.

• Each plant has 4 petals with the shape of a cross.

• Garlic Mustard is a big threat to the native plants and animals in the eastern and midwestern U.S. in the forest communities.

• Invasions of garlic mustard are causing local extirpations of the toothworts, and chemicals in garlic mustard appear to be toxic to the eggs of the butterfly, as evidenced by their failure to hatch when laid on garlic mustard plants.

• This plant is from Europe that invades woodland habitats in North America and impacts forest biodiversity.


The spiny water fleaThe spiny water fleas are native to waters of northern Europe and Asia and widely distributed in the Great Lakes area of North

America.The spiny water flea invasion happened on lake ontario around in the late 1982s.The spiny water flea female can produce up to 10 offspring every two weeks.This would not be problem if they were consumes but the spiny water fleas sharp spine makes it

extremely hard for small fish to eat, leaving only some large fish to feed on them.

Fish trying to eat spiny water flea.


LAMPREYThe Lamprey came from the atlantic ocean to the great lakes

The Lamprey came to the great lakes in the 1800’sA consequence is the lamprey is eating all the salmon and taking the other fishes food and thats killing the other fish

species


Purple Loosetrife(lythrum salicaria)*The purple

loosetrife arrived in eastern North

America in the early 1800’s by

Europeans.

*This plant usually leaves behind enemies that help

prevent population.


Emerald Ash BorerThe Emerald Ash Borer original range is in parts of Eastern Russia.

First discovered in the U.S near detroit, this invasive species has killed nearly 20 million ash trees in southeastern Michigan alone.

It had affected the great lakes region by destroying more than tens of millions of ash trees by the great lakes region. Usually, these emerald ash borers kill their host in 3 to 5 years.

Richard Nguyen


Brown Trout Luis Huicochea

RANGECame from Europe and parts of Asia.They are mostly from New Zealand.

Brown trout Salmo trutta were introduced to New Zealand in 1867. Successful establishment was broadly predictable in terms both of the characteristics of brown trout and of the receiving community. There is evidence of impacts of brown trout on the abundance of some native fish and invertebrates, and brown trout have been responsible for the local extinction and fragmentation of certain species. An intensive study of the Taieri River has revealed that several native galaxiid fishes are now restricted to headwaters above large waterfalls that prevent the upstream migration of brown trout. Brown trout may profoundly affect the functioning of stream communities, reducing the abundance of grazing invertebrates and altering their grazing behaviour so that algal biomass increases. A trophic cascade was predictable on the basis of the attributes of the invader and of the stream community. Brown trout seem to have been responsible for the evolution among invertebrates of novel anti-predator behaviours with far-reaching community consequences. The ecological and evolutionary consequences of the introduction of brown trout to New Zealand are probably reversible.

Unlike brook and rainbow trout, brown trout prefer natural-looking artificial flies to blatantly fake red, white, or blue flies. Trout have impressive faculties of vision, smell, and hearing, able to focus on two objects placed at different distances at once in dim, cloudy waters.

Find:

PictureOriginal rangeYear of InvasionPossible Consequences to Great Lakes region


Viral Hemorrahgic Septicemia

VHS is a deadly infectious fish disease.Documented as as a pathological disease among

cultured salmonoids sing the 1950’s.VHS started as a disease infecting european fish but got

spread here to the great lakes through other fish.


Zebra Mussel

Said to be the most dangerous exotic species on the Great Lakes

Originally came from Europe in

They clogged water intakes at power plants

Millions of dollars are spent every year to try and clean up the mollusks

They damage structures

They kill other species native to the lakes too


Common CarpBy Marcus Alexander


Original rangeEURPOPE!!!!!!!

YEAR OF INVASION!!!!!!1879

what it does it eats food plants and bugs from other species.


Also known as King salmon or hook bill salmon

Chinook salmon range from Kotzebue Sound, Alaska, to Santa Barbara, California.

The chinook salmon invaded the Great lakes in the 1870‘s and then in the 1966

They have helped control the alewife in the great lakes regions.

By Obehi EjemenyeCHINOOK SALMON


Short-nose Gar

Original range is below the Gulf of Mexico. The year of invasion is

1962. The consequences to Great Lakes region eats any type of fish and it could eat fishes unknown.


Round Goby was introduced to the great lakes in about 1990. Its original range is around the black and caspian seas. It has invaded the great lakes for about 10 or so years.The Round Goby out competes other bait fish.

Then it hurts the salmon because the salmon don’t eat Round Goby.

Round Goby


Dog Strangling Vine(Pale Swallowwart)

Originally from the Ukraine and Russia.

It was imported as a garden ornamental around 1900

•It thrives in sun or shade, and will basically grow anywhere.•It chokes out other plants and there are no animals that eat it here in the GLR.•It may choke out milkweed which in turn could be detrimental to the Monarch butterfly.•It is harmless to dogs!!

by Mr. Marsh


Documents

Invasive Species of the Great Lakeskvillepskms.sharpschool.com/UserFiles/Servers... · introduction of brown trout to New Zealand are probably reversible. Unlike brook and rainbow