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Problem: What is the impact of the Zebra Mussels on the Fish Community in the NY Hudson River?

Problem: What is the impact of the Zebra Mussels on the Fish Community in the NY Hudson River?. Hypothesis:. Zebra Mussels would harm open water fish that eat plankton but would help littoral feeding fish.

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Problem: What is the impact of the Zebra Mussels on the Fish Community in the NY Hudson River?

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  1. Problem: What is the impact of the Zebra Mussels on the Fish Community in the NY Hudson River?

  2. Hypothesis: • Zebra Mussels would harm open water fish that eat plankton but would help littoral feeding fish. • Predicted: 6 open water fish would decline and 10 littoral fish would increase and move to region of greatest mussel density upriver

  3. Experiment • Analysis of data collected over 26years • Compared data on abundance, growth, and distribution

  4. Results • Open water fish declined • Littoral fish increased and growth rate showed same results

  5. Results

  6. Application • Can help fisheries manage commercial and recreational fishing in the Hudson River and other areas invaded by Zebra Mussels

  7. Why did they spread so rapidly? • Well adapted for long distance travel • Attach themselves easily to things/boats • Did not encounter any natural predators

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