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Sea lamprey traveled from the ocean to the great lakes by going through the canals attached to boats. 

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Sea lamprey traveled from the ocean to the great lakes by going through the canals attached to boats. 

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What do sea lamprey eat in the Great Lakes?

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Do sea lamprey eat yellow perch?

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Are other organisms affecting the reproduction of the trout?

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Great lakes food web

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Please specify the name of the fish you put an image of below. Can you do that?

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How might humans be affected by this decline in the trout population?

How might humans be involved in this decline of the trout population?

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The Great Lakes are in the USA and Canada.

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This is where the Lake Trout get their name from.

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I know it's blurry but this is the Great Lakes Food Web.

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This is the Chub

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Microplankton is one food that the trout's food eat.

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Females are being born more than Males

could other animals be eating the trout eggs

is the a virus that is attacking their reproduction system

are they becoming infertile

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are other organisms eating them

Invasive species

over fishing

are predictors running out of food

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How might pollution in the environment have affected the trout?

Is the habitat (the lakes) overpopulated?

Is there anything else in the environment that could affect an organism, such as global warming?