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The crash of the Lake Erie whitefish andherring fishery in the late 1800s
President Ulysses Grant commissioned a study
Carp eggs were imported from Germanybetween 1877 and 1885
10,000 North American cities, counties, andstates participated
But.by 1896 it was clear that carp were ahuge mistake
The Canadian Government was furious
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This utterly stupid American experiment, thecarp, is a dismal and destructive failure whichthreatens the entire Great Lakes fishery. The
carp is a marauding hog which multiplies likevermin, tastes like dirt, and displaces nativespecies.
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There will be no more distribution of carpwhile I am in charge. The program was illadvised. The carp distribution program was afailed experiment.
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Year Great LakesWhitefish
Great LakesHerring
Lake ErieWhitefish
Lake ErieHerring
1880 24 19 3.6 4.8
1890 18 60 2.5 4.5
1900 8 69 3.2 44.51910 7 52 3.4 38.5
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Accidental travelers: zebra mussels, roundgobies, or lamprey eels, white perch
Introduced species: smelt, carp
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Artificial changes in the waterways bring them(Welland Canal and Lamprey Eels)
Dredging for commercial shipping has caused
problems Ocean-going ships brought hitchhikers (zebra
mussels, ruffes, and gobies)
The current list of almost 300 includes, fish,algae, plants, and viruses like vhs
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Protect the valuable Great Lakes commercialand sport fishery (1,400 commercial fishing
jobs in Ontario alone)
Prevent Asian carpfrom entering the GreatLakes Basin
Provide an early warning system
Develop a rapid response system Control the Asian carp population if (when) it
arrives
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Great Lakes commercial and recreationalfishing is $4 Billion per year industry
Ontarios commercial fishing had a $33 Million
dockside harvest in 2011 ($234 Million retail) Ontarios recreational fishing was a $600
Million retail industry in 2011
Aquaculture was a $60 Million retail industryin Ontario in 2011
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We sent away for them
For catfish farm ponds
Primarily in the mid-south
Within the Mississippi River drainage basin
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Why not use the backhoe to dig a pond and getsome catfish eggs?
Diversify: corn, tomatoes, beans, and catfish
The yummy catfish dinner Farm ponds
Fish poop
A miracle solution
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They are exactly like the algae-eating fish inyour home aquarium, but way bigger
Two primary species are commonly used
The bighead carp (Can reach 100 Pounds) The silver carp (Can reach 40 Pounds)
Each species eats 40% of its weight per day
A few farmers used either grass carp or thecommon carp leading some to call the invadersEurasian carp
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Unusually high water levels during spring 1994disrupted shipping on the Mississippi River
Many of the other tributary rivers including the
Ohio and Illinois also flooded Asian carp used the opportunity to escape from
their farm ponds
The clever rascals slithered across wet cornfields and meadows, and found their way intothe tributary river systems
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In late 2009 The Corps of Engineers tried amass poisoning
Naturally a few people were really upset
Not just tree-huggers And a few valuable fish were nuked!
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Each female silver carp lays between 27,000and 3.5 Million eggs each year
Each female bighead carp lays between 4,800
and 1.6 Million eggs each year Research suggests that as few as twelve carp in
a hospitable new environment can launch anentire population
Lake Erie provided the best possible bio-system for both species
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2,000 samples were taken from Great Lakesbasin waters
417 Samples from Lake Erie
Six Lake Erie samples tested positive for bighead carp DNA
Four in Sandusky Bay
Two in Maumee Bay
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Placed in Lake Michigan in 1912 to stimulatesport fishing
Migrated quickly downstream to Lake Erie
Threatened to fill Lake Erie and displace nativespecies by 1950
Have been implicated in the crash of the blue
pike during the 1950s A regulated trawling program begun in
Ontario in 1952 has now controlled them
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Where Patterson Creeks muddy waters run down
Past the penny arcades by the harbour downtown
And all the old turtlebacks rust in the rain
Like they never will leave there again
But leave there they will in the hours before dawn Slip out in the darkness without word or song
For a few years more they will work while they can
Just to catch tiny fish for Japan
These days run together each one is the same
And its good that the smelt has no lovelier name
Its all just a job now well work while we can
Just to catch tiny fish for Japan
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Year Millions of Pounds Harvested
1955 2.0
1960 11.5
1965 11.7
1970 9.41975 16.9
1980 25.1
1985 17.8
1990 12.1
1995 12.6
2000 10.6
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There are currently three fish processingbusinesses in Illinois which specialize in Asiancarp
In 2011, twenty million pounds were flashfrozen and exported to China and another 10million to Turkey and Indonesia
At a consortium meting, high end Chicagochefs have developed recipes for gourmetdishes that feature Asian carp
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Pet food
Portion fish products like fish sticks
Food Banks
Employment or business retrofit opportunities
Illinois offered a $20,000 retrofit grant for anycommercial river fishermen to equip his boat
Some Illinois fishermen report catching 15,000pounds per day in as little as three hours
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In 2011 Twenty-Million pounds of flash frozenAsian carp were shipped to China as an exportproduct
In 2011 Ten-Million pounds of Asian carp werereturned to North America in the form of flashfrozen fish products
Its a small world technical note: flash freezing
was invented by Eries (and Port Dovers)Robert Kolbe at Rensselaer University
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