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Flashcards in Lab 7 - Age & Growth Deck (4)
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1
Q

What are the two basic ways to estimate age and growth of fish?

A

1 - Peterson method or length-frequency distribution

2 - Use hard parts to measure age and growth directly

2
Q

What are some of the issues with the Peterson method.

A

Assumes fish can be separated into distinct year classes.

Difficult in older fish and fish in the tropics that spawn year-round.

3
Q

Where can we use hard parts to measure age?

A

Bones, fin rays, scales, otoliths

4
Q

How can one measure growth rate over time?

A

By measuring the distance between growth rings