Population Sampling in Onieda Lake

What organization is working with DEC to study fish populations in Oneida Lake?

• Fish and Wildlife Service

• Cornell University

• Lake Champlain Basin Program

• Oneida Fishing Club

What method is used to estimate the fish population in the lake?

• catch and release

• net sampling

• mark-recapture

• visual observation

How many fish are typically available for marking each spring?

• 5,000 to 10,000

• 10,000 to 15,000

• 15,000 to 20,000

• 20,000 to 25,000

How are the fish marked in this study?

• They are injected with a dye.

• They have a radio tag attached to them.

• They are painted.

• They have a fin cut off.

What percentage of the fish survive being marked?

• 50%

• 75%

• 90%

• 100%

What happens to the fish after they are marked?

• They are released in Lake Champlain.

• They are kept in small ponds.

• They are released back into Oneida Lake.

• They are sent to a research facility.

What is the current estimated population of walleye in Oneida Lake?

• 500,000

• 1 million

• 2 million

• 3 million

When has the fish population reached similar numbers in the past?

• 1960s and 1980s

• 1950s and 1980s

• 1950s and 1990s

• 1970s and 1990s

How often does the fish population estimation occur?

• every year

• every two years

• every three years

• every five years

Why is it important to monitor the fish population?

• to determine the number of fishing licenses

• to maintain a strong fishery

• to reduce fishing efforts

• to determine how long the fishing season will be